Dr. Augustine M. Urbas Profile

Dr. Augustine M. Urbas

Applied Metamaterials Research Lead at Air Force Research Lab

SPIE Involvement:

Conference Program Committee | Author

Publications (53)

Proceedings Article | 13 March 2024 Presentation + Paper

Higher diffraction orders and manufacturing defects in large metalenses

Joel Leger, Ekaterina Poutrina, Piyush Shah, Robert Bedford, Augustine Urbas, Jannick Rolland, Matthew Ferguson

Proceedings Volume 12897, 128970E (2024) https://doi.org/10.1117/12.3001582

KEYWORDS: Diffraction, Semiconducting wafers, Manufacturing, Lenses, Metalenses, Scanning electron microscopy, Wafer level optics, Design, Silicon, Mid infrared

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Proceedings Article | 28 September 2023 Poster + Paper

Exploring transient modification of hyperbolic metamaterials using InAsSb-based semiconductor

Heather Haugan, Derek Bas, Augustine Urbas, Adam Neal, Kurt Eyink

Proceedings Volume 12657, 1265704 (2023) https://doi.org/10.1117/12.2676371

KEYWORDS: Gallium antimonide, Metals, Doping, Indium arsenide, Dielectrics, Hyperbolic metamaterials, Silicon, Antimony, Mid-IR, Semiconductors

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Proceedings Article | 14 June 2023 Presentation

Optical and thermomechanical properties of rare-earth bixbyites and oxides with the fluorite structure

John Drazin, Randall Hay, Augustine Urbas, Woo-Yong Jang, Brahim Akdim, Andrew Schlup, Hyunjun Kim, Kathryn Doyle, Ted Autore

Proceedings Volume PC12518, PC1251804 (2023) https://doi.org/10.1117/12.2662855

KEYWORDS: Fluorite, Thermography, Oxides, Zirconium dioxide, Data modeling, Visible radiation, Transmittance, Thermal modeling, Refractive index, Optical properties

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Proceedings Article | 14 June 2023 Presentation

Identification of new window materials

Randall Hay, Augustine Urbas, Woo-Yong Jang, Brahim Akdim, Andrew Schlup, John Drazin, Hyunjun Kim, Kathryn Doyle, Ted Autore

Proceedings Volume PC12518, PC1251803 (2023) https://doi.org/10.1117/12.2663496

KEYWORDS: Oxides, Databases, Transparency, Data modeling, Thermography, Thermal modeling, Temperature metrology, Spinel, Resistance, Raman spectroscopy

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Proceedings Article | 17 March 2023 Presentation

Design, fabrication, and characterization of large metalenses

Jeremy Goodsell, Augustine Urbas, Joel Leger, Jannick Rolland

Proceedings Volume PC12432, PC124320I (2023) https://doi.org/10.1117/12.2649327

KEYWORDS: Modulation transfer functions, Testing and analysis, Semiconducting wafers, Prototyping, Optics manufacturing, Optical fabrication equipment, Optical fabrication, Optical components, Metrology, Lenses

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Proceedings Article | 14 March 2023 Presentation + Paper

Photonic upconversion maximization for nonlinear meta-material enabled by deep learning

Lakshmi Raju, Zhaocheng Liu, Dayu Zhu, Andrew Kim, Ekaterina Poutrina, Augustine Urbas, Wenshan Cai

Proceedings Volume 12405, 124050F (2023) https://doi.org/10.1117/12.2651695

KEYWORDS: Sum frequency generation, Plasmonics, Deep learning, Upconversion, Nonlinear metamaterials, Photons, Second harmonic generation, Nonlinear optics

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Proceedings Article | 3 October 2022 Presentation + Paper

Ultrafast phase transition to hyperbolic metamaterial state

Derek Bas, Augustine Urbas, Heather Haugan, Kurt Eyink

Proceedings Volume 12195, 121950G (2022) https://doi.org/10.1117/12.2633893

KEYWORDS: Gallium antimonide, Reflectivity, Picosecond phenomena, Metamaterials, Heterojunctions, Dielectrics, Ultrafast phenomena, Metals, Sensors, Signal detection

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Proceedings Article | 30 May 2022 Presentation

Multiscale optimization of hybrid meta/refractive lenses

Philip W. Hon, Stéphane Larouche, Kate Fountaine, Michael Dupuis, Ihab El-Kady, Augustine Urbas

Proceedings Volume 12106, 1210602 (2022) https://doi.org/10.1117/12.2616584

KEYWORDS: Geometrical optics, Lenses, Chemical species, Radio propagation, Zemax, Wave propagation, Optical simulations, Optical design, Numerical simulations, Lens design

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Proceedings Article | 5 March 2022 Poster + Paper

Light-harvesting microconical arrays integrated with photodetector FPAs for enhancing infrared imaging devices

Boya Jin, Aaron Brettin, Grant Bidney, Nicholaos Limberopoulos, Joshua Duran, Gamini Ariyawansa, Igor Anisimov, Augustine Urbas, Kenneth Allen, Sarath Gunapala, Vasily Astratov

Proceedings Volume 12004, 120040X (2022) https://doi.org/10.1117/12.2609883

KEYWORDS: Photodetectors, Staring arrays, Mid-IR, Infrared imaging, Waveguides, Solar concentrators, Photoresist materials, Short wave infrared radiation, Imaging devices, Microlens array

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Proceedings Article | 5 March 2022 Poster + Paper

Fabrication of 3-D light concentrating microphotonic structures by anisotropic wet etching of silicon

Lou Deguzman, Thomas Hutchens, Joshua Duran, Gamini Ariyawansa, Igor Anisimov, Nicholaos Limberopoulos, Augustine Urbas, Kenneth Allen, Sarath Gunapala, Vasily Astratov, Grant Bidney, Boya Jin

Proceedings Volume 12012, 120120B (2022) https://doi.org/10.1117/12.2610426

KEYWORDS: Silicon, Wet etching, Solar concentrators, Photoresist materials, Mid-IR, Semiconducting wafers, Photomasks, Photodetectors, Short wave infrared radiation, Sensors

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Proceedings Article | 5 March 2022 Presentation + Paper

Monolithic integration of photodetector focal plane arrays with micropyramidal arrays in mid-wave infrared

Kenneth Allen, Sarath Gunapala, Vasily Astratov, Grant Bidney, Boya Jin, Lou Deguzman, Joshua Duran, Gamini Ariyawansa, Igor Anisimov, Nicholaos Limberopoulos, Augustine Urbas

Proceedings Volume 12006, 1200609 (2022) https://doi.org/10.1117/12.2610304

KEYWORDS: Photodetectors, Silicon, Mid-IR, Sensors, Nickel, Semiconducting wafers, Photons, Short wave infrared radiation, Quantum efficiency

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Proceedings Article | 4 March 2022 Presentation + Paper

Second harmonic generation enhanced with inversely designed plasmonics for nonlinear metamaterials

Lakshmi Raju, Zhaocheng Liu, Muliang Zhu, Ekaterina Poutrina, Augustine Urbas, Wenshan Cai, Kyu-tae Lee, Dayu Zhu

Proceedings Volume 11985, 1198507 (2022) https://doi.org/10.1117/12.2607644

KEYWORDS: Second-harmonic generation, Plasmonics, Polarization, Control systems, Gold, Metamaterials, Nonlinear optics, Nonlinear metamaterials, Composites, Structural design

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Proceedings Article | 22 November 2021 Presentation + Paper

Designing hybrid lenses using metaoptics for enhanced optical performance

Philip W. Hon, Kate Fountaine, Stéphane Larouche, Ekaterina Poutrina, Augustine Urbas, Michael Dupuis, Michael Marciniak, Matthew Miller

Proceedings Volume 11795, 117951F (2021) https://doi.org/10.1117/12.2596639

KEYWORDS: Wave propagation, Diffraction, Geometrical optics, Near field optics, Scattering, Zemax, Silicon, Fourier optics, Radio propagation, Optical design

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Proceedings Article | 6 August 2021 Poster + Paper

Tunable mid-wavelength infrared (MWIR) polarizer by ORMOCHALC composite with improved thermomechanical stability

Darryl Boyd, John Derov, Woohong Kim, Md Didarul Islam, Sipan Liu, Jong Eun Ryu, Augustine Urbas, Zahyun Ku, Jasbinder Sanghera, Vinh Nguyen, Jason Myers, Colin Baker, Evan Smith

Proceedings Volume 11797, 1179722 (2021) https://doi.org/10.1117/12.2594342

KEYWORDS: Polarizers, Refractive index, Composites, Polymers, Mid-IR, Nanoparticles, Nanocomposites, Optical components

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Mid-wavelength infrared (MWIR, λ = 3 – 5 μm) materials are of great importance due to their applications in optical sensors and devices for military, industry, and non-invasive medical diagnostics. Specifically, MWIR polarimetry are used in biometric recognition and camouflaged detection. Recently, sulfur based organically modified chalcogenides (ORMOCHALC) polymers have been utilized to fabricate MWIR polarizers with competitive extinction coefficient to commercial polarizers, which are mostly made of expensive, brittle, and heavy inorganic materials. On the other hand, to adjust or reinforce the refractive index of the polymer, the chalcogenide content (i.e., sulfur, selenium) needs to be increased, which may result in adverse effects on the thermomechanical characteristics, including Young's modulus and lower glass transition temperature. This reduced thermomechanical stability compromises the structural integrity of ORMOCHALC-based optical devices. In this study, an ORMOCHALC polymer, poly(S–r–DIB), was reinforced with the zinc sulfide (ZnS) nanoparticles to simultaneously improve the refractive index and the thermomechanical properties. The addition of 20 wt% ZnS nanoparticles improves the pure polymer's glass transition temperature (T_g) from 9.6 °C to 31.4 °C, and the refractive index by Δn= 6.58 %. Then, subwavelength wire-grid polarizers were fabricated based on the pure ORMOCHALC first by a simple thermal imprinting method followed by metal deposition. The resulted MWIR polarizer showed a high extinction coefficient which is comparable with commercial polarizers. However, the structural integrity of the polarizers was compromised due to lower glass transition temperature. Finally, finite element analysis was conducted on the possible wire-grid polarizer fabrication utilizing optically and mechanically reinforced composites, as demonstrated in this study. If fabricated, these nanoparticles reinforced polarizers will possess superior structural integrity compared to ORMOCHALC polarizers. Moreover, these polarizers show a spectral selectivity as the transmission curve's resonance wavelength depends on the composite's refractive index, which is tunable by controlling the nanoparticles content. The resonance peak redshifted from 3.12 μm to 3.3 μm for the pure polymer to 20% ZnS reinforced ORMOCHALC polarizer. The extinction coefficient of the polarizer also improved in multiple wavelength bands in the MWIR. These polarizers with superior extinction coefficient, spectral selectivity, and improved thermomechanical stability demonstrate a broader prospect in MWIR optics.

Proceedings Article | 3 August 2021 Poster + Paper

The polymer nanocomposites embedded particles size and agglomeration effect on the effective refractive index tuning

Sipan Liu, Jong Ryu, Md Didarul Islam, Zahyun Ku, Augustine Urbas, Darryl Boyd, Woohong Kim, Jasbinder Sanghera

Proceedings Volume 11802, 118020L (2021) https://doi.org/10.1117/12.2594382

KEYWORDS: Particles, Nanoparticles, Nanocomposites, Polymers, Scattering, Refractive index, Finite element methods, Light scattering

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Proceedings Article | 3 August 2021 Presentation + Paper

Characterization of the optical performance and scatter of an infrared dielectric metasurface lens

Michael Marciniak, Matthew Miller, Ekaterina Poutrina, Piyush Shah, Samuel Butler, Augustine Urbas

Proceedings Volume 11802, 118020B (2021) https://doi.org/10.1117/12.2594928

KEYWORDS: Silicon, Scattering, Sensors, Semiconducting wafers, Laser scattering, Infrared radiation, Diffraction, Dielectrics, Lens design

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Proceedings Article | 1 August 2021 Presentation

Nonlinear properties of hyperbolic metamaterials

Augustine Urbas

Proceedings Volume 11795, 1179524 (2021) https://doi.org/10.1117/12.2596899

KEYWORDS: Metamaterials, Nonlinear response, Nonlinear optics, Spectroscopy, Semiconductor materials, Polarization, Optical properties, Multilayers, Electromagnetism, Doping

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Proceedings Article | 5 March 2021 Presentation

Nonlinear and hyperbolic metasurfaces and applications

Ekaterina Poutrina, Derek Bas, Kurt Eyink, Augustine Urbas, Heather Haugan, Vitaliy Pustovit

Proceedings Volume 11682, 1168210 (2021) https://doi.org/10.1117/12.2589199

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SPIE Journal Paper | 12 February 2021

Design, fabrication, test, and analysis of an out-of-plane plasmonic optical metasurface

Carlos Diaz, David Burckel, Bryan Adomanis, Augustine Urbas, Michael Marciniak

JNP, Vol. 15, Issue 01, 016005, (February 2021) https://doi.org/10.1117/12.10.1117/1.JNP.15.016005

KEYWORDS: Plasmonics, Gold, Finite element methods, Polarization, Data modeling, Phase shifts, Analytical research, Instrument modeling, Diffraction, Chemical elements

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Proceedings Article | 21 August 2020 Presentation + Paper

Simulation and modeling of fabricated metasurface optical device measured via polarimetric scatterometer

Augustine Urbas, Carlos Diaz, Bryan Adomanis, Michael Marciniak, D. Burckel

Proceedings Volume 11467, 114670J (2020) https://doi.org/10.1117/12.2568200

KEYWORDS: Data modeling, Polarization, Instrument modeling, Finite element methods, Plasmonics, Scatter measurement, Phase shifts, Optical components, Near field

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Proceedings Article | 9 September 2019 Presentation

One-way nonlinear mirror via multipolar interference from a metasurface (Conference Presentation)

Ekaterina Poutrina, Augustine Urbas

Proceedings Volume 11081, 110810D (2019) https://doi.org/10.1117/12.2529350

KEYWORDS: Mirrors, Magnetism, Image processing, Difference frequency generation, Refraction, Nanostructuring, Nonlinear response, Switches

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Proceedings Article | 17 September 2018 Presentation

A Van Hove singularity in the topology critical point of bilayer hyperbolic metamaterials (Conference Presentation)

Vitally Pustovit, David Zelmon, Kurt Eyink, Augustine Urbas

Proceedings Volume 10722, 107221A (2018) https://doi.org/10.1117/12.2321048

KEYWORDS: Metamaterials, Metals, Semiconductors

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Proceedings Article | 14 September 2018 Paper

High temperature measurements of AlON using a CO2 laser

A. Arends, C. Rosenbury, J. Park, W-Y Jang, R. Schueler, A. Urbas

Proceedings Volume 10742, 1074218 (2018) https://doi.org/10.1117/12.2319763

KEYWORDS: Long wavelength infrared, Temperature metrology, Thermography, Optical simulations, Absorption

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SPIE Journal Paper | 6 March 2018

Additive manufacturing of transparent fused quartz

Junjie Luo, John Hostetler, Luke Gilbert, Jonathan Goldstein, Augustine Urbas, Douglas Bristow, Robert Landers, Edward Kinzel

OE, Vol. 57, Issue 04, 041408, (March 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.4.041408

KEYWORDS: Fused quartz, Quartz, Glasses, Additive manufacturing, Printing, Gas lasers, Spectroscopy, Pyrometry, Temperature metrology, Thermal modeling

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Proceedings Article | 22 February 2018 Presentation + Paper

Laser-assisted field emission in single-walled carbon nanotubes

Derek Bas, Robert Headrick, Jamie Gengler, Matteo Pasquali, Junichiro Kono, Tsing-Hua Her, Augustine Urbas, Mark Green

Proceedings Volume 10530, 1053012 (2018) https://doi.org/10.1117/12.2290122

KEYWORDS: Acquisition tracking and pointing, Ionization, Ultrafast phenomena, Absorption, Single walled carbon nanotubes, Raman spectroscopy, Optoelectronics, Nanomaterials, Copper, Carbon nanotubes

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Proceedings Article | 16 May 2017 Paper

Short wavelength infrared photodetector and light emitting diode based on InGaAsSb

Sang-Woo Kang, Sang Jun Lee, Jun Oh Kim, Tien Dai Nguyen, Zahyun Ku, Augustine Urbas

Proceedings Volume 10177, 101772M (2017) https://doi.org/10.1117/12.2264969

KEYWORDS: Indium gallium arsenide antimonide, Light emitting diodes, Photodetectors, Infrared photography, Infrared radiation, Infrared detectors, Short wave infrared radiation, Gallium antimonide, Infrared detection, Molecular beam epitaxy, Antimony, Gallium

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Proceedings Article | 3 May 2017 Presentation + Paper

High-temperature material characterization for multispectral window

James Park, Marvin-Ray Arida, Zahyun Ku, Woo-Yong Jang, Augustine Urbas

Proceedings Volume 10179, 101790E (2017) https://doi.org/10.1117/12.2262755

KEYWORDS: Material characterization, Dielectrics, Copper, Sensors, 3D printing, Cavity resonators, Resonators, Statistical analysis, Waveguides, Laser irradiation

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Proceedings Article | 1 May 2017 Paper

Optical characterizations on surface-polished polycrystalline YAG fibers

Ali Kadhim, Dean Brown, Randall Corns, Hyunjun Kim, Nicholas Usechak, Randall Hay, Augustine Urbas, Kathleen Shugart, Benjamin Griffin, HeeDong Lee, Sean McDaniel, Gary Cook

Proceedings Volume 10192, 101920B (2017) https://doi.org/10.1117/12.2262673

KEYWORDS: Optical fibers, YAG lasers, Scattering, Surface roughness, Surface finishing, Polishing, Ceramics, Optical properties, Fiber lasers, Holmium, Glasses

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Proceedings Article | 28 April 2017 Presentation

Geometrically-induced loss suppression in plasmoelectronic nanostructures (Conference Presentation)

Shoufeng Lan, Sean Rodrigues, Lei Kang, Mohammad Taghinejad, Devin Brown, Augustine Urbas, Wenshan Cai

Proceedings Volume 10112, 101121G (2017) https://doi.org/10.1117/12.2251429

KEYWORDS: Local area networks, Alternate lighting of surfaces, Plasmonics, Nanostructures, Resonance enhancement, Nanostructuring, Metals, Surface plasmon polaritons, Optical design, Light-matter interactions

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Proceedings Article | 19 April 2017 Presentation

Additive manufacturing of borosilicate glass (Conference Presentation)

Edward Kinzel, Junjie Luo, Douglas Bristow, Robert Landers, Jonathan Goldstein, Augustine Urbas

Proceedings Volume 10095, 100950A (2017) https://doi.org/10.1117/12.2256667

KEYWORDS: Glasses, Additive manufacturing, Borosilicate glass, Optics manufacturing, Communication engineering, Optical communications, Electronics, Soda-lime glass, Resistance, Carbon dioxide lasers

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Proceedings Article | 23 February 2017 Presentation + Paper

Contact microspherical nanoscopy: from fundamentals to biomedical applications

V. Astratov, A. Maslov, A. Brettin, Y. Nesmelov, N. Limberopoulos, D. Walker, A. Urbas, K. Blanchette

Proceedings Volume 10077, 100770S (2017) https://doi.org/10.1117/12.2251869

KEYWORDS: Super resolution microscopy, Biomedical optics, Super resolution, Proteins, Image resolution, Near field optics, Near field, Plasmonics, Nanoplasmonics, Lenses

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Proceedings Article | 20 February 2017 Presentation + Paper

Use of photonic jets produced by dielectric microspheres for increasing sensitivity and angle-of-view of MWIR detectors

Vasily Astratov, Aaron Brettin, Farzaneh Abolmaali, Nicholaos Limberopoulos, Augustine Urbas

Proceedings Volume 10107, 101070V (2017) https://doi.org/10.1117/12.2249729

KEYWORDS: Mid-IR, Sensors, Staring arrays, Optical spheres, Dielectrics, Microlens array, Back illuminated sensors, Photoresist materials, Finite-difference time-domain method, Microlens

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Proceedings Article | 16 February 2017 Paper

Resonant routing of optical pulses in coupled-cavity structures

Farzaneh Abolmaali, Nicholaos Limberopoulos, Alexey Maslov, Augustine Urbas, Vasily Astratov

Proceedings Volume 10106, 101061J (2017) https://doi.org/10.1117/12.2249591

KEYWORDS: Waveguides, Microresonators, Structural design, Molecular photonics, Finite-difference time-domain method, Photonic crystals, Photonic microstructures, Molecules, Optical isolators, Femtosecond phenomena, Resonators, Optical microcavities, Signal detection, Wave propagation, Switching, Mirrors

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Proceedings Article | 9 November 2016 Presentation

The effect of Coulomb interaction on spasing conditions in small nanoparticles (Conference Presentation)

Vitaliy Pustovit, Tigran Shahbazyan, Arkadi Chipouline, Augustine Urbas

Proceedings Volume 9921, 99211U (2016) https://doi.org/10.1117/12.2235818

KEYWORDS: Plasmonics, Plasmonic nanolaser, Nanoparticles, Molecules, Dielectrics, Metals, Molecular interactions, Laser development, Gold, Plasmonic waveguides

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Proceedings Article | 20 May 2016 Paper

Long wavelength infrared photodetector using submonolayer quantum dots

Jun Oh Kim, Zahyun Ku, Augustine Urbas, Sang-Woo Kang, Sang Jun Lee

Proceedings Volume 9819, 98191B (2016) https://doi.org/10.1117/12.2223569

KEYWORDS: Photodetectors, Infrared radiation, Infrared photography, Long wavelength infrared, Scanning transmission electron microscopy, Indium arsenide, Gallium arsenide, Quantum wells, Polarization, Quantum dots

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Proceedings Article | 17 May 2016 Paper

Bubble formation in additive manufacturing of glass

Daniel Peters, Edward Kinzel, Junjie Luo, Luke Gilbert, Douglas Bristow, Robert Landers, Jonathan Goldstein, Augustine Urbas

Proceedings Volume 9822, 98220D (2016) https://doi.org/10.1117/12.2224321

KEYWORDS: Additive manufacturing, Glasses, Laser processing, Carbon dioxide lasers, Optics manufacturing, Foam, Spectroscopy, Soda-lime glass, Printing, Visible radiation

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Proceedings Article | 22 April 2016 Presentation + Paper

Fundamental limits of super-resolution microscopy by dielectric microspheres and microfibers

V. Astratov, A. Urbas, V. Liberman, M. Rothschild, A. Maslov, K. Allen, N. Farahi, Y. Li, A. Brettin, N. Limberopoulos, D. Walker

Proceedings Volume 9721, 97210K (2016) https://doi.org/10.1117/12.2212762

KEYWORDS: Super resolution, Nanoplasmonics, Super resolution microscopy, Microscopy, Image resolution, Imaging arrays, Dielectrics, Near field, Confocal microscopy, Near field optics, Contact lenses, Optical spheres, Photonic nanostructures, Specialty optical fibers, Diffraction, Gold, Neodymium

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Proceedings Article | 6 April 2016 Paper

Additive manufacturing of glass for optical applications

Edward Kinzel, Junjie Luo, Luke Gilbert, Douglas Bristow, Robert Landers, Jonathan Goldstein, Augustine Urbas

Proceedings Volume 9738, 97380Y (2016) https://doi.org/10.1117/12.2218137

KEYWORDS: Fused quartz, Glasses, Additive manufacturing, Optics manufacturing, Printing, Quartz, Spectroscopy, Transmittance, Polishing, Carbon dioxide lasers

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Proceedings Article | 30 September 2015 Presentation + Paper

Energy transfer in plasmonic systems

Corey Moffett, Tigran Shahbazyan, Vitaliy Pustovit, Augustine Urbas

Proceedings Volume 9547, 95470O (2015) https://doi.org/10.1117/12.2186801

KEYWORDS: Plasmonics, Metals, Energy transfer, Plasmons, Silver, Nanostructures, Spherical lenses, Silica, Nanoparticles, Molecules

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Proceedings Article | 8 February 2015 Paper

Investigation of plasmonic enhancement in a quantum dot-in-a-well structure

Mohsen Nami, Daniel Feezell, Alireza Kazemi, Jun Oh Kim, Monica Allen, Jeffery Allen, Brett Wenner, Dean Brown, Augustine Urbas, Sanjay Krishna, Brianna Klein, Bill Mitchell

Proceedings Volume 9370, 937019 (2015) https://doi.org/10.1117/12.2076227

KEYWORDS: Polarization, Plasmonics, Gallium arsenide, Absorption, Sensors, Heterojunctions, Near field, Luminescence, Infrared sensors, Infrared detectors

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Proceedings Article | 17 August 2014 Paper

The spasing and loss compensation in plasmonic nanoshell laser (presentation video)

Vitaliy Pustovit, Arkadi Chipouline, Dean Brown, Tigran Shahbazyan, Augustine Urbas

Proceedings Volume 9163, 91630H (2014) https://doi.org/10.1117/12.2060854

KEYWORDS: Plasmonics, Video, Plasmonic nanolaser, Mie scattering, Laser scattering, Physics, Laser processing, Laser resonators, Analytical research, Nanostructures

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Proceedings Article | 11 September 2013 Paper

Cooperative resonance energy transfer in plasmonic systems

Tigran Shahbazyan, Vitaliy Pustovit, Augustine Urbas

Proceedings Volume 8809, 880911 (2013) https://doi.org/10.1117/12.2024163

KEYWORDS: Fluorescence resonance energy transfer, Metals, Plasmonics, Energy transfer, Surface plasmons, Nanostructures, Silver, Plasmons, Absorption, Transition metals

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Proceedings Article | 15 October 2012 Paper

Modification of electric and magnetic dipole emission in anisotropic plasmonic systems

A. Urbas, M. Noginov, N. Noginova, R. Hussain, J. Vella

Proceedings Volume 8455, 84551D (2012) https://doi.org/10.1117/12.931826

KEYWORDS: Magnetism, Polarization, Plasmonics, Gold, Light scattering, Luminescence, Scattering, Metamaterials, Glasses, Plasmons

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Proceedings Article | 21 September 2011 Paper

Theoretical modeling of relaxation dynamics in gold nanorod-dye assemblies for fluorescence enhancement

Augustine Urbas, Jarrett Vella

Proceedings Volume 8096, 80960A (2011) https://doi.org/10.1117/12.892225

KEYWORDS: Luminescence, Molecules, Quantum efficiency, Gold, Nanostructures, Systems modeling, Nanoparticles, Absorption, Metals, Nanorods

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Proceedings Article | 10 September 2011 Paper

Temporally shaping ultrafast light with metamaterials

Augustine Urbas, Dean Brown

Proceedings Volume 8093, 809315 (2011) https://doi.org/10.1117/12.895547

KEYWORDS: Metamaterials, Ultrafast phenomena, Dispersion, Process control, Refractive index, Waveguides, Ultrafast laser spectroscopy, Harmonic generation, Femtosecond phenomena, Nonlinear optics

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Proceedings Article | 1 March 2011 Paper

Controlling ultrafast light with dispersive metamaterials

Dean Brown, Mark Walker, Augustine Urbas

Proceedings Volume 7946, 79460U (2011) https://doi.org/10.1117/12.875465

KEYWORDS: Ultrafast phenomena, Mirrors, Metamaterials, Glasses, Ultrafast lasers, Dielectric mirrors, Refractive index, Dispersion, Data modeling, Ocean optics

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Proceedings Article | 2 September 2008 Paper

Synthesis and characterization of novel platinum acetylide oligomers

Augustine Urbas, Joy Rogers-Haley, Daniel McLean, Douglas Krein, Thomas Cooper, Jennifer Monahan, Aaron Burke, Jonathan Slagle

Proceedings Volume 7049, 704908 (2008) https://doi.org/10.1117/12.793816

KEYWORDS: Platinum, Absorption, Phosphorescence, Picosecond phenomena, Excitons, Chemical species, Ultrafast phenomena, Chromophores, Ultrafast laser spectroscopy, Ultrafast measurement systems

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Proceedings Article | 2 September 2008 Paper

Development of novel two photon absorbing chromophores

Augustine Urbas, Joy Rogers-Haley, Douglas Krein, Daniel McLean, Jonathan Slagle, Thomas Cooper, Jennifer Monahan

Proceedings Volume 7049, 704906 (2008) https://doi.org/10.1117/12.792362

KEYWORDS: Platinum, Absorption, Chromophores, Luminescence, Quantum efficiency, Phosphorescence, Excitons, Molecules, Pulsed laser operation, Picosecond phenomena

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Proceedings Article | 10 February 2007 Paper

Comparative study of two-photon fluorescent bio-markers at nanosecond and femtosecond pulsed excitation

Darayas Patel, Burl Peterson, J.-C. Wang, Augustine Urbas, V. Nesterov, Sergey Sarkisov, Michael Curley

Proceedings Volume 6442, 64420R (2007) https://doi.org/10.1117/12.699132

KEYWORDS: Luminescence, Femtosecond phenomena, Infrared radiation, Absorption, Infrared lasers, Fluorescent markers, Molecules, Rhodamine B, Proteins, Monochromators

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Proceedings Article | 14 September 2006 Paper

Development of novel two-photon absorbing chromophores

Jonathan Slagle, Daniel McLean, Augustine Urbas, Thomas Cooper, Douglas Krein, Ramamurthi Kannan, Mark Brant, Paul Fleitz, Joy Rogers, James Heinrichs, Richard Sutherland, Loon-Seng Tan

Proceedings Volume 6330, 633002 (2006) https://doi.org/10.1117/12.682984

KEYWORDS: Absorption, Chromophores, Platinum, Absorbance, Quantum efficiency, Transmittance, Molecules, Data modeling, Pulsed laser operation, Mass attenuation coefficient

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Proceedings Article | 14 September 2006 Paper

Combined nonlinear effects in two-photon absorption chromophores at high intensities

M. Brant, P. Fleitz, A. Urbas, R. Sutherland, J. Rogers, D. McLean

Proceedings Volume 6330, 633006 (2006) https://doi.org/10.1117/12.679587

KEYWORDS: Absorption, Data modeling, Chromophores, Laser scattering, Transmittance, Scattering, Refraction, Beam propagation method, Molecules, Pulsed laser operation

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Proceedings Article | 14 October 2004 Paper

Dynamic holographic polymer dispersed liquid crystals

Augustine Urbas, Timothy Bunning, Vincent Tondiglia, Nelson Tabirian, Jay Klosterman, Tomiki Ikeda, Richard Sutherland, Lalgudi Natarajan

Proceedings Volume 5511, (2004) https://doi.org/10.1117/12.560014

KEYWORDS: Liquid crystals, Polymers, Holography, Ultraviolet radiation, Diffraction, Optical properties, Absorption, Photonic crystals, Visible radiation, Diffraction gratings

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Proceedings Article | 30 November 1992 Paper

Energy relaxation peculiarities in VO phthallocyanine film

Vidmantas Gulbinas, V. Butvilas, Augustine Urbas, Ya. Vertsimakha

Proceedings Volume 1842, (1992) https://doi.org/10.1117/12.131856

KEYWORDS: Absorption, Picosecond phenomena, Molecules, Acoustics, Molecular electronics, Spectroscopy, Nonlinear dynamics, Mode locking, Ultrafast phenomena, Physics

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Showing 5 of 53 publications

Conference Committee Involvement (30)

Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVIII

25 January 2025 | San Francisco, United States

Laser 3D Manufacturing XII

25 January 2025 | San Francisco, United States

Laser 3D Manufacturing XI

30 January 2024 | San Francisco, California, United States

Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVII

28 January 2024 | San Francisco, California, United States

Laser 3D Manufacturing X

31 January 2023 | San Francisco, California, United States

Smart Photonic and Optoelectronic Integrated Circuits 2023

31 January 2023 | San Francisco, California, United States

Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVI

29 January 2023 | San Francisco, California, United States

Metamaterials, Metadevices, and Metasystems 2022

21 August 2022 | San Diego, California, United States

Smart Photonic and Optoelectronic Integrated Circuits 2022

26 January 2022 | San Francisco, California, United States

Laser 3D Manufacturing IX

25 January 2022 | San Francisco, California, United States

Metamaterials, Metadevices, and Metasystems 2021

1 August 2021 | San Diego, California, United States

Smart Photonic and Optoelectronic Integrated Circuits XXIII

6 March 2021 | Online Only, California, United States

Laser 3D Manufacturing VIII

6 March 2021 | Online Only, California, United States

Metamaterials, Metadevices, and Metasystems 2020

24 August 2020 | Online Only, California, United States

Laser 3D Manufacturing VII

4 February 2020 | San Francisco, California, United States

Smart Photonic and Optoelectronic Integrated Circuits XXII

3 February 2020 | San Francisco, California, United States

Metamaterials, Metadevices, and Metasystems 2019

11 August 2019 | San Diego, California, United States

Laser 3D Manufacturing VI

5 February 2019 | San Francisco, California, United States

Metamaterials, Metadevices, and Metasystems 2018

19 August 2018 | San Diego, California, United States

Laser 3D Manufacturing V

29 January 2018 | San Francisco, California, United States

Metamaterials, Metadevices, and Metasystems 2017

6 August 2017 | San Diego, California, United States

Laser 3D Manufacturing IV

30 January 2017 | San Francisco, California, United States

Metamaterials, Metadevices, and Metasystems 2016

28 August 2016 | San Diego, California, United States

Laser 3D Manufacturing III

15 February 2016 | San Francisco, California, United States

Metamaterials, Metadevices, and Metasystems 2015

9 August 2015 | San Diego, California, United States

Laser 3D Manufacturing II

10 February 2015 | San Francisco, California, United States

Metamaterials, Metadevices, and Metasystems 2014

17 August 2014 | San Diego, California, United States

Metamaterials: Fundamentals and Applications VI

25 August 2013 | San Diego, California, United States

Metamaterials: Fundamentals and Applications V

12 August 2012 | San Diego, California, United States

Metamaterials: Fundamentals and Applications IV

21 August 2011 | San Diego, California, United States

Showing 5 of 30 Conference Committees

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