Dr. Ari-David Brown Profile

Dr. Ari-David Brown

Systems Engineer at MEI Technologies, Inc. at NASA Goddard Space Flight Ctr

SPIE Involvement:

Author

Publications (21)

Proceedings Article | 31 August 2022 Presentation + Paper

Presentation + Paper

A robust, efficient process to produce scalable, superconducting kilopixel far-IR detector arrays

Johannes Staguhn, Elmer Sharp, Shannon Duff, Gene Hilton, Ari Brown, Felipe Colazo, Nicholas Costen, Samuel Moseley, Frederick Wang, Edward Wollack, Sang Yoon

Proceedings Volume 12190, 121900O (2022) https://doi.org/10.1117/12.2629584

KEYWORDS: Sensors, Detector arrays, Superconductors, Multiplexers, Semiconducting wafers, Space operations, Optical fabrication, Imaging spectroscopy, Cameras, Spectroscopy

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Advanced Al mirrors protected with LiF overcoat to realize stable mirror coatings for astronomical telescopes

Manuel A. Quijada, Luis V. Rodriguez de Marcos, Javier G. Del Hoyo, Emrold Gray, Edward J. Wollack, Ari Brown

Proceedings Volume 12188, 121881V (2022) https://doi.org/10.1117/12.2630585

KEYWORDS: Mirrors, Aluminum, Reflectivity, Humidity, Fluorine, Surface roughness, Lithium, Interfaces, Analytical research

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Proceedings Article | 27 August 2022 Poster + Presentation + Paper

Poster + Presentation + Paper

Optical characterization and testbed development for μ-Spec integrated spectrometers

Maryam Rahmani, Alyssa Barlis, Emily Barrentine, Ari Brown, Berhanu Bulcha, Giuseppe Cataldo, Jake Connors, Negar Ehsan, Thomas Essinger-Hileman, Henry Grant, James Hays-Wehle, Wen-Ting Hsieh, Vilem Mikula, S. Harvey Moseley, Omid Noroozian, Trevor Oxholm, Manuel Quijada, Jessica Patel, Thomas Stevenson, Eric Switzer, Carole Tucker, Kongpop U-Yen, Carolyn Volport, Edward Wollack

Proceedings Volume 12180, 1218050 (2022) https://doi.org/10.1117/12.2630311

KEYWORDS: Spectrometers, Optical testing, Optical filters, Microwave radiation, Silicon, Resonators, Black bodies, Stars, Integrated optics, Fabry–Perot interferometers

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SPIE Journal Paper | 11 March 2021 Open Access

Open Access

Origins Survey Spectrometer: revealing the hearts of distant galaxies and forming planetary systems with far-IR spectroscopy

Charles Bradford, Bruce Cameron, Bradley Moore, Steven Hailey-Dunsheath, Edward Amatucci, Damon Bradley, James Corsetti, David Leisawitz, Michael DiPirro, James Tuttle, Ari-David Brown, Richard McBirney, Alexandra Pope, Lee Armus, Margaret Meixner, Klaus Pontoppidan

JATIS, Vol. 7, Issue 01, 011017, (March 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.1.011017

KEYWORDS: Spectroscopy, Sensors, Fabry–Perot interferometers, Fourier transforms, Interferometers, Galactic astronomy, Mirrors, Heart, Telescopes, Optical design

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Proceedings Article | 13 May 2019 Paper

Paper

Uncooled doped-Si thermopiles for thermal land imaging applications

Emily Barrentine, Ari Brown, Carl Kotecki, Vilem Mikula, Riley Reid, Sang Yoon, Alicia Joseph

Proceedings Volume 10980, 109800E (2019) https://doi.org/10.1117/12.2522298

KEYWORDS: Sensors, Silicon, Thermoelectric materials, Sensor performance, Detector development, Infrared sensors, Detector arrays

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Proceedings Article | 1 August 2018 Presentation + Paper

Presentation + Paper

The Origins Survey Spectrometer (OSS): a far-IR discovery machine for the Origins Space Telescope

C. Matt Bradford, Bruce Cameron, Bradley Moore, Edward Amatucci, Damon Bradley, James Corsetti, David Leisawitz, S. Harvey Moseley, Johannes Staguhn, James Tuttle, Ari Brown, Alexandra Pope, Lee Armus, Margaret Meixner, Klaus Pontoppidan

Proceedings Volume 10698, 1069818 (2018) https://doi.org/10.1117/12.2314049

KEYWORDS: Sensors, Spectroscopy, Interferometers, Fourier transforms, Telescopes, Optical design, Bolometers, Fabry–Perot interferometers, Mirrors, Resonators

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Proceedings Article | 10 July 2018 Presentation

Presentation

Enabling technologies for photon-counting spectroscopy with the Origins Space telescope (OST) in the mid/far-infrared region (Conference Presentation)

Omid Noroozian, Emily Barrentine, Ari Brown, Samuel Moseley, Thomas Stevenson, Edward Wollack, Jochem J. Baselmans, Michael Cyberey, Arthur Lichtenberger, Klaus Pontoppidan

Proceedings Volume 10708, 107080Q (2018) https://doi.org/10.1117/12.2312371

KEYWORDS: Spectroscopy, Sensors, Space telescopes, Photodetectors, Spectrometers, Aluminum, Single photon, Microwave photonics, Photonic microstructures, Microwave radiation

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Photon-counting detectors address the single most difficult technology challenge for the Origins Space Telescope (OST) and are highly desirable for reaching the ~ 10^-20 W/√Hz sensitivity permitted by the observatory. One objective of this facility is rapid spectroscopic surveys of the high redshift universe at 420 – 800 μm, using arrays of integrated spectrometers with moderate resolutions (R = λ/Δλ ~1000), to explore galaxy evolution and growth of structure in the universe. A second objective is to perform higher resolution (R > 100,000) spectroscopic surveys at 20–300 μm for exploring the distribution of the ingredients for life in protoplanetary disks. Lastly, the OST aims to do sensitive mid-infrared (5–30 μm) spectroscopy of rocky planet atmospheres in the habitable zone using the transit method. These objectives represent a well-organized community agreement, but they are impossible to reach without a significant leap forward in detector technology, and the OST is likely not to be recommended if a path to suitable detectors does not exist. Our team is developing photon-counting Kinetic Inductance Detectors (KIDs) for the OST. Since KIDs are highly multiplexable in nature their scalability will be a major improvement over current technologies that are severely limited in observing speed due to small numbers of pixels. Moreover, KIDs are an established strong competitor to TESs and have achieved NEP ~ 1.5—3x10^-19 W/√Hz in a fully operational 1000-pixel science grade array made by SRON under the SpaceKID program. To reach the sensitivities for OST we are developing KIDs made from very thin aluminum films on single-crystal silicon substrates. Under the right conditions, small-volume inductors made from these films can become ultra-sensitive to single photons >90 GHz. Understanding the material physics and electrodynamics of excitations in these superconductor-dielectric systems is critical to performance. We have achieved world-record material properties, which are within requirements for photon-counting: microwave quality factor of 0.5 x 10^6 for a 10-nm aluminum resonator at single microwave photon drive power, residual dark electron density of < 5 /µm^3 and extremely long excitation lifetime of ~ 6.0 ms. Using a detailed model we simulated our detector when illuminated with randomly arriving single photon events and show that photon counting with >95% efficiency at 0.5 - 1.0 THz is achievable. Combined with µ-Spec - our Goddard-based on-chip far-IR spectrometer - these detectors will enable the first OST science objective mentioned above, and provide a clear path for the shorter wavelength objectives as well.

Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

Development of a robust, efficient process to produce scalable, superconducting kilopixel far-IR detector arrays

Johannes Staguhn, Samuel Moseley, Ari Brown, Gene Hilton, Kent Irwin, Stephen Maher, Karwan Rostem, Elmer Sharp, Edward Wollack

Proceedings Volume 10708, 107081V (2018) https://doi.org/10.1117/12.2312737

KEYWORDS: Sensors, Semiconducting wafers, Detector arrays, Multiplexers, Superconductors, Detector development, Photomasks, Indium, Standards development, Bolometers

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SPIE Journal Paper | 7 April 2017

James Webb Space Telescope microshutter arrays and beyond

Mary Li, Ari-David Brown, Devin Burns, Daniel P. Kelly, Kyowon Kim, Alexander Kutyrev, Samuel Moseley, Vilem Mikula, Lance Oh

JM3, Vol. 16, Issue 02, 025501, (April 2017) https://doi.org/10.1117/12.10.1117/1.JMM.16.2.025501

KEYWORDS: Camera shutters, James Webb Space Telescope, Space telescopes, Optical fabrication, Magnetism, Telescopes, Microelectromechanical systems, Silicon, Aerospace engineering, Astronomical imaging

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Proceedings Article | 27 July 2016 Paper

Paper

Silicon-based antenna-coupled polarization-sensitive millimeter-wave bolometer arrays for cosmic microwave background instruments

Karwan Rostem, Aamir Ali, John Appel, Charles Bennett, Ari Brown, Meng-Ping Chang, David Chuss, Felipe Colazo, Nick Costen, Kevin Denis, Tom Essinger-Hileman, Ron Hu, Tobias Marriage, Samuel Moseley, Thomas Stevenson, Kongpop U-Yen, Edward Wollack, Zhilei Xu

Proceedings Volume 9914, 99140D (2016) https://doi.org/10.1117/12.2234308

KEYWORDS: Microwave radiation, Silicon, Sensors, Bolometers, Detector arrays, Dielectrics, Semiconducting wafers, Niobium, Waveguides, Aerospace engineering

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Proceedings Article | 19 July 2016 Paper

Paper

Design and performance of a high resolution µ-spec: an integrated sub-millimeter spectrometer

Emily Barrentine, Giuseppe Cataldo, Ari Brown, Negar Ehsan, Omid Noroozian, Thomas Stevenson, Kongpop U-Yen, Edward Wollack, S. Harvey Moseley

Proceedings Volume 9914, 99143O (2016) https://doi.org/10.1117/12.2234462

KEYWORDS: Spectroscopy, Silicon, Superconductors, Waveguides, Spectroscopy, Superconductors, Sensors, Receivers, Optical design, Spectral resolution, Analog electronics, Semiconducting wafers

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Proceedings Article | 23 July 2014 Paper

Paper

Design, fabrication, and testing of lumped element kinetic inductance detectors for 3 mm CMB Observations

Amy Lowitz, Ari-David Brown, Thomas Stevenson, Peter Timbie, Edward Wollack

Proceedings Volume 9153, 91532R (2014) https://doi.org/10.1117/12.2057102

KEYWORDS: Resonators, Sensors, Molybdenum, Superconductors, Magnetism, Magnesium, Data modeling, Inductance, Temperature metrology, Technetium

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Proceedings Article | 30 July 2010 Paper

Paper

Fabrication of FORTIS

Stephan McCandliss, Brian Fleming, Mary Elizabeth Kaiser, Jeffrey Kruk, Paul Feldman, Alexander Kutyrev, Mary Li, Phillip Goodwin, David Rapchun, Eric Lyness, Ari Brown, Harvey Moseley, Oswald Siegmund, John Vallerga

Proceedings Volume 7732, 773202 (2010) https://doi.org/10.1117/12.857780

KEYWORDS: Galactic astronomy, Sensors, Camera shutters, Telescopes, Baryon acoustic oscillations, Rockets, Mirrors, James Webb Space Telescope, Imaging spectroscopy, Microchannel plates

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Proceedings Article | 15 July 2010 Paper

Paper

Development of superconducting transition edge sensors based on electron-phonon decoupling

Nikhil Jethava, James Chervenak, Ari-David Brown, Dominic Benford, Gunther Kletetschka, Vilem Mikula, Kongpop U-yen

Proceedings Volume 7741, 774120 (2010) https://doi.org/10.1117/12.856450

KEYWORDS: Sensors, Bismuth, Niobium, Superconductors, Electrons, Gold, Bolometers, Terahertz radiation, Antennas, Phonons

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Proceedings Article | 15 July 2010 Paper

Paper

Compact radiative control structures for millimeter astronomy

Ari Brown, David Chuss, James Chervenak, Ross Henry, S. Harvey Moseley, Edward Wollack

Proceedings Volume 7741, 77412C (2010) https://doi.org/10.1117/12.858174

KEYWORDS: Silicon, Dielectrics, Semiconducting wafers, Antireflective coatings, Ions, Phosphorus, Resistance, Deep reactive ion etching, Astronomy, Sensors

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Proceedings Article | 15 July 2010 Paper

Paper

Fabrication of an absorber-coupled MKID detector and readout for sub-millimeter and far-infrared astronomy

Ari-David Brown, Wen-Ting Hsieh, S. Harvey Moseley, Thomas Stevenson, Kongpop U-yen, Edward Wollack

Proceedings Volume 7741, 77410P (2010) https://doi.org/10.1117/12.857281

KEYWORDS: Silicon, Semiconducting wafers, Aluminum, Resonators, Crystals, Sensors, Niobium, Optical alignment, Microwave radiation, Epoxies

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Proceedings Article | 17 February 2010 Paper

Paper

JWST microshutter array system and beyond

M. Li, A. D. Brown, A. Kutyrev, H. Moseley, V. Mikula

Proceedings Volume 7594, 75940N (2010) https://doi.org/10.1117/12.843728

KEYWORDS: Camera shutters, James Webb Space Telescope, Space telescopes, Optical fabrication, Magnetism, Silicon, Telescopes, Aerospace engineering, Microelectromechanical systems, Indium

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Proceedings Article | 15 July 2008 Paper

Paper

Development of arrays of position-sensitive microcalorimeters for Constellation-X

Stephen Smith, Simon Bandler, Regis Brekosky, Ari-D. Brown, James Chervenak, Megan Eckart, Enectali Figueroa-Feliciano, Fred Finkbeiner, Richard Kelley, Caroline Kilbourne, F. Scott Porter, John Sadleir

Proceedings Volume 7011, 701126 (2008) https://doi.org/10.1117/12.790100

KEYWORDS: Image resolution, Semiconducting wafers, Sensors, Tellurium, Gold, X-rays, Composites, Bismuth, Optimal filtering, Silicon

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Proceedings Article | 14 July 2008 Paper

Paper

Multiplexed readout of uniform arrays of TES x-ray microcalorimeters suitable for Constellation-X

Caroline Kilbourne, W. Bertrand Doriese, Simon Bandler, Regis Brekosky, Ari-David Brown, James Chervenak, Megan Eckart, Fred Finkbeiner, Gene Hilton, Kent Irwin, Naoko Iyomoto, Richard Kelley, F. Scott Porter, Carl Reintsema, Stephen Smith, Joel Ullom

Proceedings Volume 7011, 701104 (2008) https://doi.org/10.1117/12.790027

KEYWORDS: Sensors, Multiplexing, Multiplexers, Image resolution, X-rays, Superconductors, Terbium, Signal to noise ratio, Inductance, Staring arrays

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Following our development of a superconducting transition-edge-sensor (TES) microcalorimeter design that en- ables reproducible, high performance (routinely better than 3 eV FWHM energy resolution at 6 keV) and is compatible with high-fill-factor arrays, we have directed our efforts towards demonstrating arrays of identical pixels using the multiplexed read-out concept needed for instrumenting the Constellation-X X-ray Microcalorime- ter Spectrometer (XMS) focal plane array. We have used a state-of-the-art, time-division SQUID multiplexer system to demonstrate 2 ×8 multiplexing (16 pixels read out with two signal channels) with an acceptably modest level of degradation in the energy resolution. The average resolution for the 16 multiplexed pixels was 2.9 eV, and the distribution of resolution values had a relative standard deviation of 5%. The performance of the array while multiplexed is well understood. The technical path to realizing multiplexing for the XMS instrument on the scale of 32 pixels per signal channel includes increasing the system bandwidth by a factor of four and reducing the non-multiplexed SQUID noise by a factor of two. In this paper we discuss the characteristics of a uniform 8 ×8 array and its performance when read out non- multiplexed and with various degrees of multiplexing. We present data acquired through the readout chain from the multiplexer electronics, through the real-time demultiplexer software, to storage for later signal processing. We also report on a demonstration of real-time data processing. Finally, because the multiplexer provides unprecedented simultaneous access to the pixels of the array, we were able to measure the array-scale uniformity of TES calorimeter parameters such as the individual thermal conductances and superconducting transition temperatures of the pixels. Detector uniformity is essential for optimal operation of a multiplexed array, and we found that the distributions of thermal conductances, transition temperatures, and transition slopes were sufficiently tight to avoid significant compromises in the operation of any pixel.

Proceedings Article | 18 September 2007 Paper

Paper

Uniform high spectral resolution demonstrated in arrays of TES x-ray microcalorimeters

Caroline Kilbourne, Simon Bandler, Ari -D. Brown, James Chervenak, Enectali Figueroa-Feliciano, Fred Finkbeiner, Naoko Iyomoto, Richard Kelley, F. Scott Porter, Stephen Smith

Proceedings Volume 6686, 668606 (2007) https://doi.org/10.1117/12.734830

KEYWORDS: X-rays, Gold, Sensors, Bismuth, Resistance, Superconductors, Spectral resolution, Quantum efficiency, Temperature metrology, Interference (communication)

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Proceedings Article | 13 June 2006 Paper

Paper

High-density arrays of x-ray microcalorimeters for Constellation-X

Caroline Kilbourne, Simon Bandler, Ari Brown, James Chervenak, Enectali Figueroa-Feliciano, Fred Finkbeiner, Naoko Iyomoto, Richard Kelley, F. Scott Porter, Tarek Saab, John Sadleir, Jennifer White

Proceedings Volume 6266, 626621 (2006) https://doi.org/10.1117/12.672419

KEYWORDS: Bismuth, Gold, X-rays, Diffusion, Sensors, Interfaces, Superconductors, Copper, Molybdenum, Metals

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Showing 5 of 21 publications

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