Dr. Shahid Aslam Profile

Dr. Shahid Aslam

Scientist at NASA Goddard Space Flight Ctr

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 10 March 2023 Presentation + Paper

Presentation + Paper

Design and optimization of NUV-enhanced 4H-SiC separate-absorption-charge-multiplication avalanche photodiodes

Jonathan Schuster, Anand Sampath, Jeremy Smith, Stephen Kelley, Gregory Garrett, Daniel Habersat, Michael Derenge, Michael Wraback, Dina Bower, Shahid Aslam, Tilak Hewagama

Proceedings Volume 12415, 1241509 (2023) https://doi.org/10.1117/12.2649236

KEYWORDS: Silicon carbide, Avalanche photodetectors, Doping, Absorption, Deep ultraviolet, Ultraviolet radiation, Avalanche photodiodes, Finite-difference time-domain method, Design and modelling, Ionization

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Proceedings Article | 31 August 2022 Poster + Paper

Poster + Paper

Cross-slot metal-mesh bandpass filters for far-infrared astronomy

Joanna Perido, Kevin Denis, Jason Glenn, Nicholas Cothard, Manuel Quijada, Jessica Patel, Edward Wollack, Tilak Hewagama, Sahid Aslam, Peter Day

Proceedings Volume 12190, 121901M (2022) https://doi.org/10.1117/12.2630571

KEYWORDS: Silicon, Gold, Terahertz radiation, Metals, Transmittance, Cryogenics, Antireflective coatings, Bandpass filters, Electromagnetic simulation, Far infrared, Astronomy, Planetary science

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Proceedings Article | 3 June 2022 Paper

Paper

A parallel readout circuit for a space-based non-dispersive infrared gas analyzer

Dat Tran, Nicolas Gorius, Gerard Quilligan, Qian Gong, John Kolasinski, Todd Purser, Ariel Siguelnitzky, James Parker, Donald Wegel, Daniel Glavin, Perry Gerakines, Shahid Aslam, Thuc Phan, George Nehmetallah

Proceedings Volume 12121, 121210M (2022) https://doi.org/10.1117/12.2619116

KEYWORDS: Infrared radiation, Sensors, Gas sensors, Infrared sensors, Optical filters, Multiplexers, Gases, Absorption

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Proceedings Article | 3 June 2022 Paper

Paper

Planetary exploration enabled by a compact adaptable, time-resolved, spatial-heterodyne Raman spectrometer

Dina Bower, Steven Li, Shahid Aslam, Tilak Hewagama, Nicolas Gorius

Proceedings Volume 12121, 121210N (2022) https://doi.org/10.1117/12.2618777

KEYWORDS: Raman spectroscopy, Spectroscopy, Heterodyning, Signal detection, Fourier transforms, Planetary science, Spectral resolution, Spatial resolution, Sensors, Remote sensing

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SPIE Journal Paper | 17 August 2021

Measuring large amplitude surface figure error using coordinate metrology

Manal Khreishi, Raymond Ohl, Ryan McClelland, Ron Shiri, Tilak Hewagama, Shahid Aslam, Melville Ulmer, Edgar Canavan, Rongguang Liang

OE, Vol. 60, Issue 08, 084103, (August 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.8.084103

KEYWORDS: Metrology, Mirrors, X-ray optics, Optical engineering, Silicon, Optical testing, Semiconducting wafers, Optical fabrication, Photovoltaics, Interferometry

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Proceedings Article | 12 April 2021 Poster + Presentation + Paper

Poster + Presentation + Paper

Parallel computation of CRC-code on an FPGA

Dat Tran, Nicolas Gorius, Shahid Aslam, George Nehmetallah

Proceedings Volume 11755, 117550V (2021) https://doi.org/10.1117/12.2586144

KEYWORDS: Field programmable gate arrays, Error control coding, Telecommunications, Algorithms

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Proceedings Article | 23 April 2020 Presentation + Paper

Presentation + Paper

Radiation-hard parallel readout circuit for low-frequency voltage signal measurements

Dat Tran, Nicolas Gorius, Daniel Glavin, Gerard Quilligan, Meredith Wieber, Stephen McKim, Shahid Aslam, George Nehmetallah

Proceedings Volume 11422, 1142205 (2020) https://doi.org/10.1117/12.2558117

KEYWORDS: Field programmable gate arrays, Amplifiers, Sensors, Data acquisition, Analog electronics, Modulation, Signal detection, Clocks

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Proceedings Article | 22 April 2020 Presentation + Paper

Presentation + Paper

Portable flow device using Fourier ptychography microscopy and deep learning for detection in biosignatures

Thanh Nguyen, Shahid Aslam, Dina Bower, Jennifer Eigenbrode, Nicolas Gorius, Tilak Hewagama, Laddawan Miko, George Nehmetallah

Proceedings Volume 11401, 114010H (2020) https://doi.org/10.1117/12.2557316

KEYWORDS: Data modeling, Microscopes, Reconstruction algorithms, Image resolution, Microscopy, Spatial resolution, Liquids, Light emitting diodes, Cameras, Optical microscopes

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Proceedings Article | 18 September 2018 Presentation + Paper

Presentation + Paper

Overview of Primitive Object Volatile Explorer (PrOVE) CubeSat or Smallsat concept

Pamela Clark, Tilak Hewagama, Shahid Aslam, James Bauer, Michael Daly, Lori Feaga, Dave Folta, Nicolas Gorius, Kyle Hughes, Terry Hurford, Donald Jennings, Timothy Livengood, Michael Mumma, Conor Nixon, Jessica Sunshine, Geronimo Villanueva, Kevin Brown, Ben Malphrus, Aaron Zucherman

Proceedings Volume 10769, 107690J (2018) https://doi.org/10.1117/12.2321264

KEYWORDS: Comets, Space operations, Cameras, Carbon monoxide, Mid-IR, Spatial resolution

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Proceedings Article | 2 May 2018 Presentation + Paper

Presentation + Paper

Low-cost, compact, and robust gas abundance sensor package

Dat Tran, George Nehmetallah, Nicolas Gorius, Frank Ferguson, Jaime Esper, Natasha Johnson, Shahid Aslam, Conor Nixon

Proceedings Volume 10641, 106410Q (2018) https://doi.org/10.1117/12.2304639

KEYWORDS: Sensors, Calibration, Absorption, Carbon dioxide, Analog electronics, Gases, Infrared radiation, Light sources, Thermography, Lamps

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Proceedings Article | 11 June 2007 Paper

Paper

Noise in superconducting MgB2 thin film

B. Lakew, S. Aslam, H. Jones

Proceedings Volume 6600, 660022 (2007) https://doi.org/10.1117/12.724658

KEYWORDS: Thin films, Superconductors, Silicon, Bolometers, Thin film growth, Resistance, Temperature metrology, Technetium, Silicon films, Spectrum analysis

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Proceedings Article | 21 April 2006 Paper

Paper

Noise in MgB₂ thin film: a candidate material for space-borne infrared detector development

B. Lakew, S. Aslam, H. Jones, B. Moeckly

Proceedings Volume 6186, 61860A (2006) https://doi.org/10.1117/12.663668

KEYWORDS: Thin films, Superconductors, Bolometers, Silicon, Infrared detectors, Resistance, Temperature metrology, Signal to noise ratio, Sensors, Silicon films

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Proceedings Article | 18 August 2005 Paper

Paper

Development of ultra-high sensitivity wide-band gap UV-EUV detectors at NASA Goddard Space Flight Center

S. Aslam, F. Yan, D. Pugel, D. Franz, L. Miko, F. Herrero, M. Matsumara, S. Babu, C. Stahle

Proceedings Volume 5901, 59011J (2005) https://doi.org/10.1117/12.639415

KEYWORDS: Silicon carbide, Sensors, Zinc oxide, Quantum efficiency, Ultraviolet radiation, Silicon, Gallium nitride, Photodiodes, Readout integrated circuits, Semiconductors

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Proceedings Article | 18 August 2005 Paper

Paper

Progress on development of UV photocathodes for photon-counting applications at NASA GSFC

J. Stock, G. Hilton, T. Norton, B. Woodgate, S. Aslam, M. Ulmer

Proceedings Volume 5898, 58980F (2005) https://doi.org/10.1117/12.617517

KEYWORDS: Quantum efficiency, Gallium nitride, Cesium, Calibration, Ultraviolet radiation, Sensors, Opacity, Tellurium, Microchannel plates, Diodes

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Proceedings Article | 1 September 2004 Paper

Paper

Performance of a far-IR TES bolometer on monolithic sapphire membrane

Brook Lakew, Shahid Aslam, John Brasunas

Proceedings Volume 5459, (2004) https://doi.org/10.1117/12.545611

KEYWORDS: Bolometers, Sapphire, Thin films, Gold, Sensors, Superconductors, Infrared sensors, Infrared bolometers, Far infrared, Infrared radiation

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Proceedings Article | 2 October 2001 Paper

Paper

Magnetically actuated microshutter arrays

David Mott, Shahid Aslam, Kenneth Blumenstock, Rainer Fettig, David Franz, Alexander Kutyrev, Mary Li, Carlos Monroy, Samuel Moseley, David Schwinger

Proceedings Volume 4561, (2001) https://doi.org/10.1117/12.443109

KEYWORDS: Camera shutters, Electrodes, Silicon, Semiconducting wafers, Magnetism, Oxides, Deep reactive ion etching, Etching, Reactive ion etching, Space telescopes

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Proceedings Article | 1 October 1999 Paper

Paper

Design and fabrication of novel photodetector arrays

Mary Li, Christine Allen, Shahid Aslam, Tina Chen, Fred Finkbeiner, Scott Gordon, Jonathan Kuhn, David Mott, Carl Stahle, Caroline Stahle, Nilesh Tralshawala, Liqin Wang

Proceedings Volume 3892, (1999) https://doi.org/10.1117/12.364483

KEYWORDS: Molybdenum, Silicon, Sensors, Superconductors, Gold, Silver, Scanning electron microscopy, Semiconducting wafers, Aluminum, Detector arrays

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Proceedings Article | 25 August 1997 Paper

Paper

New method for end-point detection in reactive ion etching of polysilicon

Shahid Aslam, Naresh Das, Peter Shu

Proceedings Volume 3213, (1997) https://doi.org/10.1117/12.284623

KEYWORDS: Etching, Semiconducting wafers, Reactive ion etching, Plasma, Ions, Oxides, Silica, Ellipsometry, Silicon, Thin films

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Showing 5 of 18 publications

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