Dr. Michael J. Escuti Profile

Dr. Michael J. Escuti

CTO at Meta

SPIE Involvement:

Conference Program Committee | Author | Science Fair Judge

Websites:

Company Website

Publications (73)

Proceedings Article | 29 August 2022 Presentation

First laboratory tests of a triple-grating vector vortex coronagraph

David Doelman, Mireille Ouellet, Garreth Ruane, Michael Escuti, Sebastiaan Haffert, Frans Snik

Proceedings Volume 12180, 1218029 (2022) https://doi.org/10.1117/12.2630070

KEYWORDS: Coronagraphy, Polarization, Prototyping, Diffraction gratings, Diffraction, Telescopes, Stars, Manufacturing, Light scattering, Exoplanets

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SPIE Journal Paper | 21 July 2022

Cephalopod-inspired snapshot multispectral sensor based on geometric phase lens and stacked organic photodetectors

Ali Altaqui, Harry Schrickx, Sydney Gyurek, Pratik Sen, Michael Escuti, Brendan O'Connor, Michael Kudenov

OE, Vol. 61, Issue 07, 077104, (July 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.7.077104

KEYWORDS: Sensors, Diffraction, Multispectral imaging, Optical engineering, Point spread functions, Eye, Polarization, Optical filters, Multispectral sensing, Chromatic aberrations

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SPIE Journal Paper | 8 December 2021

Cryogenic characterization of the grating vector apodizing phase plate coronagraph for the enhanced resolution imager and spectrograph at the Very Large Telescope

Anna Boehle, David Doelman, Björn Konrad, Frans Snik, Adrian Glauser, Emiel Por, Nathaniel Warriner, Shuojia Shi, Michael Escuti, Matthew Kenworthy, Sascha Quanz

JATIS, Vol. 7, Issue 04, 045001, (December 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.4.045001

KEYWORDS: Point spread functions, Coronagraphy, Liquid crystals, Sensors, Cryogenics, Optics manufacturing, Manufacturing, Imaging systems, Optical testing, Stars

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Proceedings Article | 21 August 2020 Presentation + Paper

Solc-style birefringent color filters based on multi-twist retarders

Lingshan Li, Shuojia Shi, Michael Escuti

Proceedings Volume 11483, 114830N (2020) https://doi.org/10.1117/12.2569133

KEYWORDS: Optical filters, Wave plates, Polarization

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Proceedings Article | 20 August 2020 Poster + Paper

Color-selective geometric phase lens for apochromatic lens system

Lingshan Li, Jihwan Kim, Shuojia Shi, Michael Escuti

Proceedings Volume 11472, 1147219 (2020) https://doi.org/10.1117/12.2569165

KEYWORDS: Diffraction, Polarization, Liquid crystals, Colorimetry, Optical filters, Chromatic aberrations

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Proceedings Article | 9 September 2019 Presentation + Paper

Paraxial Analysis of Binary Polarization Gratings (bin-PGs)

Nathaniel Warriner, Michael Escuti

Proceedings Volume 11105, 111050I (2019) https://doi.org/10.1117/12.2530111

KEYWORDS: Polarization, Diffraction gratings, Binary data, Diffraction, Liquid crystals, Nanostructures, Jones calculus

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Proceedings Article | 9 September 2019 Presentation

The multiple-grating vector vortex coronagraph (Conference Presentation)

Frans Snik, David Doelman, Steven Bos, Mireille Ouellet, Michael Escuti, Garreth Ruane

Proceedings Volume 11117, 1111713 (2019) https://doi.org/10.1117/12.2529554

KEYWORDS: Coronagraphy, Polarization, Diffraction gratings, Diffraction, Liquid crystals, Point spread functions, Space telescopes

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Proceedings Article | 29 August 2019 Paper

Fabrication of liquid crystal binary polarization gratings (bin-PGs)

N. Warriner, Michael Escuti

Proceedings Volume 11092, 110920Q (2019) https://doi.org/10.1117/12.2530131

KEYWORDS: Binary data, Holograms, Liquid crystals, Polarization, Diffraction gratings, Diffraction, Polymers, Far-field diffraction

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Proceedings Article | 17 September 2018 Presentation + Paper

Optimization of aspheric geometric-phase lenses for improved field-of-view

Kathryn Hornburg, Xiao Xiang, Michael Kudenov, Michael Escuti

Proceedings Volume 10743, 1074305 (2018) https://doi.org/10.1117/12.2322326

KEYWORDS: Aspheric lenses, Lenses, Zemax, Liquid crystals, Phase shifts, Holography, Diffraction, Holograms

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Proceedings Article | 14 September 2018 Presentation + Paper

Design and fabrication of an aspheric geometric-phase lens doublet

Kathryn Hornburg, Xiao Xiang, Jihwan Kim, Michael Kudenov, Michael Escuti

Proceedings Volume 10735, 1073513 (2018) https://doi.org/10.1117/12.2322327

KEYWORDS: Spherical lenses, Aspheric lenses, Liquid crystals, Coating, Lens design, Holography, Phase shifts, Zemax, Transmittance

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Proceedings Article | 10 July 2018 Paper

Fully broadband vAPP coronagraphs enabling polarimetric high contrast imaging

Steven Bos, David Doelman, Jos de Boer, Emiel Por, Barnaby Norris, Michael Escuti, Frans Snik

Proceedings Volume 10706, 107065M (2018) https://doi.org/10.1117/12.2312798

KEYWORDS: Point spread functions, Polarimetry, Coronagraphy, Polarization, Polarizers, Modulators, Beam splitters, Liquid crystals, Near infrared

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Proceedings Article | 9 July 2018 Paper

Multiplexed holographic aperture masking with liquid-crystal geometric phase masks

D. Doelman, P. Tuthill, B. Norris, M. Wilby, E. Por, C. Keller, M. Escuti, F. Snik

Proceedings Volume 10701, 107010T (2018) https://doi.org/10.1117/12.2313547

KEYWORDS: Point spread functions, Holography, Multiplexing, Liquid crystals, Polarization, Holograms, Interferometry

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Proceedings Article | 6 July 2018 Paper

A unique infrared spectropolarimetric unit for CRIRES+

Nikolai Piskunov, Eric Stempels, Alexis Lavail, Michael Escuti, Frans Snik, Andrey Dolgopolov, Milan Rozel, Candice Durandet, Artie Hatzes, Paul Bristow, Anna Brucalassi, Claudio Cumani, Reinhold Dorn, Andreas Haimerl, Ulrike Heiter, Renate Hinterschuster, Roman Follert, Derek Ives, Yves Jung, Florian Kerber, Barbara Klein, Jean-Louis Lizon, Thomas Marquart, Ignacio Molina-Conde, Luca Pasquini, Jérôme Paufique, Ernesto Oliva, Ansgar Reiners, Ulf Seemann, Jörg Stegmeier, Sebastien Tordo, Elena Valenti

Proceedings Volume 10702, 1070234 (2018) https://doi.org/10.1117/12.2313512

KEYWORDS: Polarization, Sensors, Transmittance, Infrared radiation, Telescopes, Manufacturing, Stars, Magnetism, Adaptive optics, Infrared spectroscopy

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High-resolution infrared spectropolarimetry has many science applications in astrophysics. One of them is measuring weak magnetic fields using the Zeeman effect. Infrared domain is particularly advantageous as Zeeman splitting of spectral lines is proportional to the square of the wavelength while the intrinsic width of the line cores increases only linearly. Important science cases include detection and monitoring of global magnetic fields on solar-type stars, study of the magnetic field evolution from stellar formation to the final stages of the stellar life with massive stellar winds, and the dynamo mechanism operation across the boundary between fully- and partially-convective stars. CRIRES+ (the CRIRES upgrade project) includes a novel spectropolarimetric unit (SPU) based on polar- ization gratings. The novel design allows to perform beam-splitting very early in the optical path, directly after the tertiary mirror of the telescope (the ESO Very Large Telescope, VLT), minimizing instrumental polariza- tion. The new SPU performs polarization beam-splitting in the near-infrared while keeping the telescope beam mostly unchanged in the optical domain, making it compatible with the adaptive optics system of the CRIRES+ instrument. The SPU consists of four beam-splitters optimized for measuring circular and linear polarization of spectral lines in YJ and HK bands. The SPU can perform beam switching allowing to correct for throughput in each beam and for variations in detector pixel sensitivity. Other new features of CRIRES+, such as substantially increased wavelength coverage, stability and advanced data reduction pipeline will further enhance the sensitivity of the polarimetric mode. The combination of the SPU, CRIRES+ and the VLT is a unique facility for making major progress in understanding stellar activity. In this article we present the design of the SPU, laboratory measurements of individual components and of the whole unit as well as the performance prediction for the operation at the VLT.

Proceedings Article | 15 March 2018 Paper

Wide-field-of-view nanoscale Bragg liquid crystal polarization gratings

Xiao Xiang, Jihwan Kim, Michael Escuti

Proceedings Volume 10555, 1055508 (2018) https://doi.org/10.1117/12.2303994

KEYWORDS: Diffraction gratings, Liquid crystals, Diffraction, Polarization, Polymers, Waveguides, Holography, Prisms, Beam steering, Optical components

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Proceedings Article | 19 September 2017 Presentation

Achromatic and chromatic liquid crystal polymer films at near-infrared wavelengths (Conference Presentation)

Nathaniel Warriner, Michael Escuti, Shuojia Shi, Kathryn Hornburg

Proceedings Volume 10407, 104070I (2017) https://doi.org/10.1117/12.2276001

KEYWORDS: Liquid crystals, Near infrared, Colorimetry, Wave plates, Optical sensing, Polarization, Polymer thin films, Polymers, Space telescopes, Telescopes

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Proceedings Article | 19 September 2017 Presentation

Chromatic-aberration correction in geometric-phase lenses, for red, green, and blue operation (Conference Presentation)

Jihwan Kim, Kathryn Hornburg, Michael Escuti, Nathaniel Warriner

Proceedings Volume 10361, 1036113 (2017) https://doi.org/10.1117/12.2276041

KEYWORDS: Lenses, Chromatic aberrations, Polarization, Liquid crystals, Diffraction, Colorimetry, Wavefronts, Wave plates, Prototyping, Electro optics

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Proceedings Article | 1 September 2017 Paper

Patterned liquid-crystal optics for broadband coronagraphy and wavefront sensing

David Doelman, Frans Snik, Nathaniel Warriner, Michael Escuti

Proceedings Volume 10400, 104000U (2017) https://doi.org/10.1117/12.2273406

KEYWORDS: Liquid crystals, Wavefront sensors, Exoplanets, Point spread functions, Imaging systems, Optics manufacturing, Coronagraphy, Manufacturing, Polarization

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SPIE Journal Paper | 7 June 2017 Open Access

Snapshot imaging spectrometry with a heterodyned Savart plate interferometer

Bryan Maione, Leandra Brickson, Michael Escuti, Michael Kudenov

OE, Vol. 56, Issue 08, 081806, (June 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.8.081806

KEYWORDS: Interferometers, Spectrometers, Imaging spectrometry, Spectral resolution, Sensors, Target recognition, Remote sensing, Polarization, Heterodyning, Calibration

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Proceedings Article | 6 April 2017 Presentation + Paper

Numerical analysis of Bragg regime polarization gratings by rigorous coupled-wave analysis

Xiao Xiang, Michael Escuti

Proceedings Volume 10127, 101270D (2017) https://doi.org/10.1117/12.2258529

KEYWORDS: Diffraction gratings, Diffraction, Polarization, Liquid crystals, Numerical analysis, Transmittance, Reflectivity, Computer simulations, Birefringence, Waveguides

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Proceedings Article | 15 February 2017 Presentation + Paper

Experimental characterization of a F/1.5 geometric-phase lens with high-achromatic efficiency and low aberration

Kathryn Hornburg, Jihwan Kim, Michael Escuti

Proceedings Volume 10125, 101250Y (2017) https://doi.org/10.1117/12.2258545

KEYWORDS: Liquid crystals, Holograms, Thin films, Geometrical optics, Multispectral imaging, Holography, Coating, Diffraction, Polymers, Optical components, Plano, Modulation transfer functions, Fresnel lenses, Polarization, Transmittance, Optical filters, Wave plates, Optical testing

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Proceedings Article | 4 May 2016 Paper

Narrowband emission line imaging spectrometry using Savart plates

Bryan Maione, Leandra Brickson, Michael Kudenov, Michael Escuti

Proceedings Volume 9853, 985309 (2016) https://doi.org/10.1117/12.2224275

KEYWORDS: Polarization, Interferometers, Spectral resolution, Sensors, Potassium, Staring arrays, Image registration, Calibration, Rockets, Wave plates

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Proceedings Article | 7 March 2016 Paper

Numerical modeling of polarization gratings by rigorous coupled wave analysis

Xiao Xiang, Michael Escuti

Proceedings Volume 9769, 976918 (2016) https://doi.org/10.1117/12.2218276

KEYWORDS: Polarization, Diffraction gratings, Diffraction, Optical components, Numerical modeling, Liquid crystals, Anisotropy, Imaging systems, Numerical analysis, Scattering, Finite-difference time-domain method, Electroluminescent displays, Transmittance, Dielectric polarization, Computer simulations

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Proceedings Article | 1 September 2015 Paper

Snapshot retinal imaging Mueller matrix polarimeter

Yifan Wang, Michael Kudenov, Amir Kashani, Jim Schwiegerling, Michael Escuti

Proceedings Volume 9613, 96130A (2015) https://doi.org/10.1117/12.2188480

KEYWORDS: Polarimetry, Calibration, Polarization, Cameras, Eye, Staring arrays, Polysomnography, Retina, Imaging systems, Retinal scanning

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Proceedings Article | 11 March 2015 Paper

Wide-color gamut multi-twist retarders

Kathryn Hornburg, Leandra Brickson, Michael Escuti

Proceedings Volume 9384, 93840W (2015) https://doi.org/10.1117/12.2084853

KEYWORDS: Wave plates, Liquid crystals, RGB color model, Optical filters, Colorimetry, Image restoration, Polarizers, Linear polarizers, Polymers, Stars

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Proceedings Article | 10 March 2015 Paper

Distortion-free broadband holograms: A novel class of elements utilizing the wavelength-independent geometric phase

Xiao Xiang, Matthew Miskiewicz, Michael Escuti

Proceedings Volume 9386, 938609 (2015) https://doi.org/10.1117/12.2084722

KEYWORDS: Holograms, Polarization, Fourier transforms, Colorimetry, Distortion, Wave plates, Liquid crystals, 3D image reconstruction, Geometrical optics, Polymers

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SPIE Journal Paper | 3 February 2015 Open Access

Optimization of direct-write polarization gratings

Matthew Miskiewicz, Michael Escuti

OE, Vol. 54, Issue 02, 025101, (February 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.2.025101

KEYWORDS: Polarization, Diffraction, Diffraction gratings, Air contamination, Liquid crystals, Optical engineering, Optical simulations, Modulators, Camera shutters, Photomicroscopy

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Proceedings Article | 26 September 2014 Paper

The vector apodizing phase plate coronagraph: prototyping, characterization and outlook

Gilles P.P. Otten, Frans Snik, Matthew Kenworthy, Matthew Miskiewicz, Michael Escuti, Johanan Codona

Proceedings Volume 9151, 91511R (2014) https://doi.org/10.1117/12.2056096

KEYWORDS: Point spread functions, Coronagraphy, Prototyping, Liquid crystals, Polarization, Manufacturing, Stars, Telescopes, Wave plates, Optical lithography

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Proceedings Article | 6 August 2014 Paper

Combining vector-phase coronagraphy with dual-beam polarimetry

Frans Snik, Gilles Otten, Matthew Kenworthy, Dimitri Mawet, Michael Escuti

Proceedings Volume 9147, 91477U (2014) https://doi.org/10.1117/12.2055452

KEYWORDS: Polarization, Coronagraphy, Polarimetry, Polarizers, Point spread functions, Wave plates, Liquid crystals, Planets, Prisms, Beam splitters

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Proceedings Article | 28 July 2014 Paper

Novel infrared polarimeter for the ESO CRIRES+ instrument

Matthew Lockhart, Nikolai Piskunov, Eric Stempels, Michael Escuti, Ernesto Oliva, Hans-Ulrich Käufl, Ulrike Heiter, Thomas Marquart, Guillem Anglada-Escude, Dietrich Baade, Paul Bristow, Reinhold Dorn, Roman Follert, Domingo Gojak, Jason Grunhut, Artie Hatzes, Michael Hilker, Derek Ives, Yves Jung, Florian Kerber, Barbara Klein, Jean-Louis Lizon, Tom Löwinger, Livia Origlia, Luca Pasquini, Jerome Paufique, Eszter Pozna, Ansgar Reiners, Ulf Seemann, Alain Smette, Jonathan Smoker, Elena Valenti

Proceedings Volume 9147, 91478P (2014) https://doi.org/10.1117/12.2056367

KEYWORDS: Polarimetry, Beam splitters, Infrared radiation, Polarization, Sensors, Adaptive optics, Telescopes, Prototyping, Monochromators, Infrared telescopes

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Proceedings Article | 18 July 2014 Paper

Polarization gratings for visible and near-infrared astronomy

Max Millar-Blanchaer, Dae-Sik Moon, James Graham, Michael Escuti

Proceedings Volume 9151, 91514I (2014) https://doi.org/10.1117/12.2056998

KEYWORDS: Polarization, Modulation, Optical design, Astronomy, Visible radiation, Spectrographs, Polarimetry, Liquid crystals, Sensors, Near infrared

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Proceedings Article | 21 May 2014 Paper

An overview of polarimetric sensing techniques and technology with applications to different research fields

Frans Snik, Julia Craven-Jones, Michael Escuti, Silvano Fineschi, David Harrington, Antonello De Martino, Dimitri Mawet, Jérôme Riedi, J. Scott Tyo

Proceedings Volume 9099, 90990B (2014) https://doi.org/10.1117/12.2053245

KEYWORDS: Polarimetry, Polarization, Modulation, Calibration, Astronomy, Wave plates, Signal detection, Polarizers, Sensors, Remote sensing

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Proceedings Article | 21 May 2014 Paper

Birefringent snapshot imaging spatial heterodyne spectrometer

Bryan Maione, David Luo, Michael Kudenov, Michael Escuti, Matthew Miskiewicz

Proceedings Volume 9099, 90990M (2014) https://doi.org/10.1117/12.2049726

KEYWORDS: Neural networks, Polarization, Spectroscopy, Fourier transforms, Heterodyning, Calibration, Spectral calibration, Reflectivity, Hyperspectral imaging, Spectral resolution

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Proceedings Article | 21 May 2014 Paper

Multiband retardation control using multi-twist retarders

Kathryn Hornburg, Ravi Komanduri, Michael Escuti

Proceedings Volume 9099, 90990Z (2014) https://doi.org/10.1117/12.2051170

KEYWORDS: Wave plates, Colorimetry, Liquid crystals, Polarizers, Polymers, Optical components, Polarization, Near infrared, Data modeling, Remote sensing

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SPIE Journal Paper | 8 April 2014 Open Access

Polarization spatial heterodyne interferometer: model and calibration

Michael Kudenov, Matthew Miskiewicz, Michael Escuti, James Coward

OE, Vol. 53, Issue 04, 044104, (April 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.4.044104

KEYWORDS: Calibration, Polarization, Heterodyning, Interferometers, Spatial frequencies, Fourier transforms, Spectroscopy, Spectral resolution, Liquid crystals, Optical engineering

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Proceedings Article | 25 February 2014 Paper

Generating and measuring non-diffracting vector Bessel beams

A. Dudley, Y. Li, T. Mhlanga, M. Escuti, A. Forbes

Proceedings Volume 8999, 89990K (2014) https://doi.org/10.1117/12.2038372

KEYWORDS: Polarization, Bessel beams, Spatial light modulators, Superposition, Polarizers, Telecommunications, Optical spheres, Laser development, LCDs, Atmospheric turbulence

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Proceedings Article | 22 October 2013 Paper

Snapshot imaging Mueller matrix instrument

Michael Kudenov, Sushmit Mallik, Michael Escuti, Nathan Hagen, Kazuhiko Oka, Eustace Dereniak

Proceedings Volume 8897, 88970S (2013) https://doi.org/10.1117/12.2028546

KEYWORDS: Polarimetry, Polarization, Modulation, Calibration, Wave plates, Prisms, Remote sensing, Interferometers, Statistical analysis, Staring arrays

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Proceedings Article | 28 September 2013 Paper

Generating and analyzing non-diffracting vector vortex beams

Yanming Li, Angela Dudley, Thandeka Mhlanga, Michael Escuti, Andrew Forbes

Proceedings Volume 8843, 884305 (2013) https://doi.org/10.1117/12.2027249

KEYWORDS: Polarization, Bessel beams, Spatial light modulators, Electroluminescent displays, Beam analyzers, Polarizers, Spiral phase plates, Superposition, Optical spheres, Optical components

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Proceedings Article | 27 September 2013 Paper

Compact spatial heterodyne interferometer using polarization gratings

Michael Kudenov, Matthew Miskiewicz, Michael Escuti, Jim Coward

Proceedings Volume 8873, 88730Q (2013) https://doi.org/10.1117/12.2024104

KEYWORDS: Polarization, Calibration, Heterodyning, Interferometers, Fourier transforms, Spectral resolution, Liquid crystals, Spatial frequencies, Monochromators, Systems modeling

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Proceedings Article | 13 September 2012 Paper

The Vector-APP: a Broadband Apodizing Phase Plate that yields Complementary PSFs

Frans Snik, Gilles Otten, Matthew Kenworthy, Matthew Miskiewicz, Michael Escuti, Christopher Packham, Johanan Codona

Proceedings Volume 8450, 84500M (2012) https://doi.org/10.1117/12.926222

KEYWORDS: Point spread functions, Polarization, Liquid crystals, Coronagraphy, Polarimetry, Wave plates, Adaptive optics, Stars, Prototyping, Planets

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Proceedings Article | 15 May 2012 Paper

Polarization gratings for non-mechanical beam steering applications

J. Buck, S. Serati, L. Hosting, R. Serati, H. Masterson, M. Escuti, J. Kim, M. Miskiewicz

Proceedings Volume 8395, 83950F (2012) https://doi.org/10.1117/12.921688

KEYWORDS: Beam controllers, Manufacturing, Polarization, Control systems, Mid-IR, Liquid crystals, Beam steering, Spatial light modulators, Short wave infrared radiation, Complex systems

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Proceedings Article | 15 May 2012 Paper

Progress on large-area polarization grating fabrication

Matthew Miskiewicz, Jihwan Kim, Yanming Li, Ravi Komanduri, Michael Escuti

Proceedings Volume 8395, 83950G (2012) https://doi.org/10.1117/12.921572

KEYWORDS: Polarization, Holography, Prisms, Polymers, Transmittance, Spherical lenses, Beam splitters, Liquid crystals, Mirrors, Ultraviolet radiation

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Proceedings Article | 28 February 2012 Paper

Efficient 3D FDTD analysis of arbitrary birefringent and dichroic media with obliquely incident sources

Matthew Miskiewicz, Patrick Bowen, Michael Escuti

Proceedings Volume 8255, 82550W (2012) https://doi.org/10.1117/12.913628

KEYWORDS: Finite-difference time-domain method, Atomic force microscopy, Diffraction, Liquid crystals, Polarizers, Computer simulations, Transmittance, Particles, Diffraction gratings, Polarization

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Proceedings Article | 11 February 2012 Paper

Broadband orbital angular momentum manipulation using liquid crystal thin films

Yanming Li, Jihwan Kim, Michael Escuti

Proceedings Volume 8274, 827415 (2012) https://doi.org/10.1117/12.913757

KEYWORDS: Polarization, Liquid crystals, Diffraction, Thin films, Visible radiation, Optical components, Light sources, Polymers, Superposition, Optical tweezers

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Proceedings Article | 11 February 2012 Paper

Multi-twist retarders for broadband polarization transformation

Ravi Komanduri, Jihwan Kim, Kristopher Lawler, Michael Escuti

Proceedings Volume 8279, 82790E (2012) https://doi.org/10.1117/12.913795

KEYWORDS: Polarization, Wave plates, Liquid crystals, Polymers, Polarizers, Birefringence, LCDs, Glasses, Ultraviolet radiation, 3D displays

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Proceedings Article | 10 February 2012 Paper

A compact holographic recording setup for tuning pitch using polarizing prisms

Jihwan Kim, Ravi Komanduri, Michael Escuti

Proceedings Volume 8281, 82810R (2012) https://doi.org/10.1117/12.913952

KEYWORDS: Holography, Polarizing prisms, Polarization, Prisms, Optics manufacturing, Manufacturing

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Proceedings Article | 15 September 2011 Paper

Experimental realization of high-efficiency switchable optical OAM state generator and transformer

Yanming Li, Jihwan Kim, Michael Escuti

Proceedings Volume 8130, 81300F (2011) https://doi.org/10.1117/12.894474

KEYWORDS: Diffraction, Liquid crystals, Polarization, Holography, Switching, Diffraction gratings, Dielectric polarization, Birefringence, Transformers, Polymers

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Proceedings Article | 10 September 2011 Paper

Spectrally broadband channeled imaging polarimeter using polarization gratings

Michael Kudenov, Michael Escuti, Eustace Dereniak, Kazuhiko Oka

Proceedings Volume 8160, 81600V (2011) https://doi.org/10.1117/12.893771

KEYWORDS: Polarimetry, Polarization, Staring arrays, Calibration, Modulation, Linear polarizers, Objectives, Diffraction, Image fusion, Liquid crystals

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Proceedings Article | 13 May 2011 Paper

A high throughput liquid crystal light shutter for unpolarized light using polymer polarization gratings

Ravi Komanduri, Kris Lawler, Michael Escuti

Proceedings Volume 8052, 80520R (2011) https://doi.org/10.1117/12.887140

KEYWORDS: Camera shutters, Polarization, Liquid crystals, Polymers, Switches, Transmittance, Modulation, Optoelectronics, Diffraction, Signal attenuation

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Proceedings Article | 13 May 2011 Paper

Demonstration of large-angle nonmechanical laser beam steering based on LC polymer polarization gratings

Jihwan Kim, Matthew Miskiewicz, Steve Serati, Michael Escuti

Proceedings Volume 8052, 80520T (2011) https://doi.org/10.1117/12.886508

KEYWORDS: Diffraction, Polymers, Liquid crystals, Polarization, Diffraction gratings, Beam steering, Transmittance, Optical design, Absorption, Electrodes

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Proceedings Article | 23 February 2011 Paper

Polarization-insensitive, stacked, liquid crystal polarization grating bandpass filters

Elena Nicolescu, Michael Escuti

Proceedings Volume 7934, 79340V (2011) https://doi.org/10.1117/12.875473

KEYWORDS: Optical filters, Wave plates, Transmittance, Polarization, Tunable filters, Polymers, Liquid crystals, Polarizers, Bandpass filters, Diffraction gratings

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Proceedings Article | 16 August 2010 Paper

Controlling orbital angular momentum using forked polarization gratings

Yanming Li, Jihwan Kim, Michael Escuti

Proceedings Volume 7789, 77890F (2010) https://doi.org/10.1117/12.861125

KEYWORDS: Polarization, Diffraction, Diffraction gratings, Computer generated holography, Modulation, Quantum communications, Optical components, Telecommunications, Polymers, Quantum computing

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Proceedings Article | 12 August 2010 Paper

High efficiency quasi-ternary design for nonmechanical beam-steering utilizing polarization gratings

Jihwan Kim, Matthew Miskiewicz, Steve Serati, Michael Escuti

Proceedings Volume 7816, 78160G (2010) https://doi.org/10.1117/12.860885

KEYWORDS: Diffraction, Polarization, Liquid crystals, Beam steering, Transmittance, Optical design, Electrodes, Absorption, Diffraction gratings, Scattering

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Proceedings Article | 26 April 2010 Paper

Demonstration of a polarization grating imaging spectropolarimeter (PGIS)

Jihwan Kim, Michael Escuti

Proceedings Volume 7672, 767208 (2010) https://doi.org/10.1117/12.849758

KEYWORDS: Diffraction, Polarization, Staring arrays, Diffraction gratings, Imaging systems, Polarimetry, Associative arrays, Spectral resolution, Spectroscopy, Cameras

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Proceedings Article | 12 August 2009 Paper

A new beam steering concept: Risley gratings

Chulwoo Oh, Jihwan Kim, John Muth, Michael Escuti

Proceedings Volume 7466, 74660J (2009) https://doi.org/10.1117/12.828005

KEYWORDS: Diffraction, Diffraction gratings, Beam steering, Polarization, Liquid crystals, Transmittance, Prisms, Neodymium, Birefringence, Infrared lasers

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Proceedings Article | 29 August 2008 Paper

Anisotropic particle motion in optical landscapes modeled via the T-matrix optical scattering approach

Brandon Conover, Michael Escuti

Proceedings Volume 7038, 703819 (2008) https://doi.org/10.1117/12.795666

KEYWORDS: Particles, Scattering, Motion models, Optical spheres, Polarization, Spherical lenses, Systems modeling, Optical tweezers, Dielectrics, Microfluidics

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Proceedings Article | 29 August 2008 Paper

Electrostatic force and torque description of generalized spheroidal particles in optical landscapes

Ryan Going, Brandon Conover, Michael Escuti

Proceedings Volume 7038, 703826 (2008) https://doi.org/10.1117/12.795701

KEYWORDS: Particles, Optical tweezers, Dielectrics, Dielectric polarization, Electrodynamics, Polarization, Motion models, Polarizability, Blood, Nanorods

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Proceedings Article | 27 August 2008 Paper

Polarization-independent tunable optical filters based on bilayer polarization gratings

Elena Nicolescu, Michael Escuti

Proceedings Volume 7050, 705018 (2008) https://doi.org/10.1117/12.795679

KEYWORDS: Optical filters, Polarization, Liquid crystals, Transmittance, Polymers, Diffraction, Linear filtering, Diffraction gratings, Tunable filters, Birefringence

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Proceedings Article | 27 August 2008 Paper

Reflective liquid crystal polarization gratings with high efficiency and small pitch

Ravi Komanduri, Chulwoo Oh, Michael Escuti

Proceedings Volume 7050, 70500J (2008) https://doi.org/10.1117/12.795529

KEYWORDS: Reflectivity, Polarization, Liquid crystals, Diffraction gratings, Diffraction, Modulation, Mirrors, Holography, Ultraviolet radiation, Helium neon lasers

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Proceedings Article | 27 August 2008 Paper

Snapshot imaging spectropolarimeter utilizing polarization gratings

Jihwan Kim, Michael Escuti

Proceedings Volume 7086, 708603 (2008) https://doi.org/10.1117/12.795719

KEYWORDS: Polarization, Diffraction, Diffraction gratings, Imaging systems, Silicon, Staring arrays, Polarimetry, Spectral resolution, Sensors, Wave plates

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Proceedings Article | 27 August 2008 Paper

Electrically switchable achromatic liquid crystal polarization gratings on reflective substrates

Chulwoo Oh, Michael Escuti

Proceedings Volume 7050, 705019 (2008) https://doi.org/10.1117/12.795738

KEYWORDS: Liquid crystals, Reflectivity, Diffraction, Polarization, Switching, Electro optics, Diffraction gratings, Modulation, Holography, Modulators

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Proceedings Article | 26 August 2008 Paper

Wide-angle nonmechanical beam steering using thin liquid crystal polarization gratings

Jihwan Kim, Chulwoo Oh, Michael Escuti, Lance Hosting, Steve Serati

Proceedings Volume 7093, 709302 (2008) https://doi.org/10.1117/12.795752

KEYWORDS: Diffraction, Polarization, Beam steering, Liquid crystals, Transmittance, Diffraction gratings, Scattering, Binary data, Polymers, Wave plates

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Proceedings Article | 9 July 2008 Paper

Design of a mid-IR polarimeter for SOFIA

C. Packham, M. Escuti, G. Boreman, I Quijano, J. Ginn, B. Franklin, D. Axon, J. Hough, T. Jones, P. Roche, M. Tamura, C. Telesco, N. Levenson, J. Rodgers, J. McGuire

Proceedings Volume 7014, 70142H (2008) https://doi.org/10.1117/12.789843

KEYWORDS: Polarization, Polarimetry, Mirrors, Space telescopes, Diffraction, Telescopes, Absorption, Mid-IR, Optical design, Diffraction gratings

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Proceedings Article | 1 October 2007 Paper

Discrete adaptive zone light elements (DAZLE): a new approach to adaptive imaging

Robert Kellogg, Michael Escuti

Proceedings Volume 6714, 67140H (2007) https://doi.org/10.1117/12.738413

KEYWORDS: Diffraction, Mid-IR, Staring arrays, Liquid crystals, Polarization, Spatial light modulators, Diffraction gratings, Modulators, Switching, Imaging systems

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Proceedings Article | 13 September 2007 Paper

Achromatic polarization gratings as highly efficient thin-film polarizing beamsplitters for broadband light

Chulwoo Oh, Michael Escuti

Proceedings Volume 6682, 668211 (2007) https://doi.org/10.1117/12.735370

KEYWORDS: Diffraction, Polarization, Diffraction gratings, Finite-difference time-domain method, Glasses, Birefringence, Beam splitters, Neodymium, Thin films, Liquid crystals

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Proceedings Article | 12 September 2007 Paper

Compact spectrophotometer using polarization-independent liquid crystal tunable optical filters

Elena Nicolescu, Michael Escuti

Proceedings Volume 6661, 666105 (2007) https://doi.org/10.1117/12.735152

KEYWORDS: Optical filters, Spectrophotometry, Polarization, Tunable filters, Liquid crystals, Photodetectors, Spectroscopy, Diffraction gratings, Diffraction, Polarizers

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Proceedings Article | 12 September 2007 Paper

Polarization-independent tunable optical filters based on liquid crystal polarization gratings

Elena Nicolescu, Michael Escuti

Proceedings Volume 6654, 665405 (2007) https://doi.org/10.1117/12.735305

KEYWORDS: Optical filters, Polarization, Liquid crystals, Tunable filters, Transmittance, Diffraction gratings, Diffraction, Polarizers, Fabry–Perot interferometers, Birefringence

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Proceedings Article | 21 September 2006 Paper

FDTD analysis of 100% efficient polarization-independent liquid crystal polarization grating

Chulwoo Oh, Ravi Komanduri, Michael Escuti

Proceedings Volume 6332, 633212 (2006) https://doi.org/10.1117/12.681357

KEYWORDS: Diffraction, Finite-difference time-domain method, Polarization, Liquid crystals, Diffraction gratings, Electro optics, Switching, Optical properties, Neodymium, Numerical analysis

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Proceedings Article | 15 September 2006 Paper

A polarization-independent liquid crystal spatial light modulator

Michael Escuti, W. Michael Jones

Proceedings Volume 6332, 63320M (2006) https://doi.org/10.1117/12.681213

KEYWORDS: Diffraction, Liquid crystals, Polarization, Diffraction gratings, Spatial light modulators, Modulation, Transmittance, Switching, Light emitting diodes, Scattering

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Proceedings Article | 11 September 2006 Paper

The response of particles with anisotropic shape within an optical landscape and laminar flow

Brandon Conover, Michael Escuti

Proceedings Volume 6326, 632614 (2006) https://doi.org/10.1117/12.679486

KEYWORDS: Particles, Spherical lenses, Motion models, Microfluidics, Optical tweezers, Optical spheres, Stochastic processes, Holography, Computing systems, Systems modeling

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Proceedings Article | 1 September 2006 Paper

Simplified spectropolarimetry using reactive mesogen polarization gratings

Michael Escuti, Chulwoo Oh, Carlos Sánchez, Cees Bastiaansen, Dirk Broer

Proceedings Volume 6302, 630207 (2006) https://doi.org/10.1117/12.681447

KEYWORDS: Polarization, Diffraction, Diffraction gratings, Polarimetry, Scattering, Liquid crystals, Birefringence, Neodymium, Polymers, Ultraviolet radiation

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Proceedings Article | 27 February 2006 Paper

Polymerization-induced diffusion as a tool to generate periodic relief structures: a combinatorial study

Carlos Sánchez, Berend-Jan de Gans, Dimitri Kozodaev, Alexander Alexeev, Michael Escuti, Chris van Heesch, Thijs Bel, Ulrich Schubert, Cees Bastiaansen, Dirk Broer

Proceedings Volume 6136, 61360H (2006) https://doi.org/10.1117/12.649023

KEYWORDS: Polymers, Photopolymers, Photomasks, Diffusion, Lithography, Polymerization, Glasses, Atomic force microscopy, Polymer thin films, Floods

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SPIE Journal Paper | 1 September 2004

Holographic photonic crystals

Michael Escuti, Gregory Crawford

OE, Vol. 43, Issue 09, (September 2004) https://doi.org/10.1117/12.10.1117/1.1773773

KEYWORDS: Photonic crystals, Holography, Crystals, Polymers, Polarization, Liquid crystals, Lithography, Optical design, Optical engineering, Refractive index

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Proceedings Article | 5 January 2004 Paper

Mesoscale lattices and temporal multiplexing in liquid crystal/polymer dispersions

Matthew Sousa, Jun Qi, Michael Escuti, Gregory Crawford

Proceedings Volume 5213, (2004) https://doi.org/10.1117/12.509170

KEYWORDS: Liquid crystals, Holography, Polymers, Multiplexing, Photonic crystals, Refractive index, Modulation, Reflection, Crystals, Scanning electron microscopy

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