Yang, Rui Q., Hill, Cory J., Yang, Baohua H., Wong, C. M., Muller, R. E., Echternach, P. M., ...
NASA/JPL
Mid-IR interband cascade lasers for chemical sensing (2006)
Yang, Rui Q., Hill, C. J., Yang, B., Wong, C. M., Keo, S., Muller, R. E., ...
NASA
Electron Beam Lithography for the Fabrication of Air-bridged, Submicron Schottky Collectors (2004)
Muller, R. E., Martin, S. C., Smith, R. P., Allen, S. A., Reddy, M., Rodwell, M. J. W.
Gunapala, S. D., Liu, J. K., Sundaram, M., Bandara, S. V., Shott, C. A., Hoelter, T., ...
One of the simplest device realizations of the classic particle-in-the-box problem of basic quantum mechanics is the Quantum Well Infrared Photodetector (QWIP). Optimization of the detector design...
Long-wavelength 256x256 QWIP Hand-held Camera (2004)
Gunapala, S. D., Liu, J. K., Sundaram, M., Bandara, S. V., Shott, C. A., Hoelter, T., ...
In this paper, we discuss the development of very sensitive long wavelength infrared (LWIR) GaAs/AlxGa1-xAs quantum well infrared photodetectors (QWIPs), fabrication of random reflectors for...
Gunapala, S. D., Bandara, S. V., Lin, J. K., Hong, W., Sundaram, M., Maker, P. D., ...
The performance of this QWIP camera is reported including indoor and outdoor imaging.
Wilson, D. W., Maker, P. D., Muller, R. E.
The computed-tomography imaging spectrometer (CTIS) captures a scene's spatial and spectral information without any type of scanning.
Gunapala, S., Bandara, S. V., Liu, J. K., Hong, W., Sundaram, M., Maker, P. D., ...
In this paper, we discuss the development of this very sensitive long waelength infrared (LWIR) camera based on a GaAs/AlGaAs QWIP focal plane array (FPA) and its performance in quantum efficiency,...
Design of multi-bandwidth frequency selective surfaces for near infrared filtering (2004)
Cwik, T. A., Fernandez, S., Ksendzov, A., La Baw, C. C., Maker, P. D., Muller, R. E.
Frequency selective surfaces are widely used in the microwave and millimeter wave regions of the spectrum for filtering signals. They are used in telecommunication systems for multi-frequency...
Quantum Well Infrared Photodetector (QWIP) Focal Planes for Long Wave Imaging (2004)
Gunapala, S., Liu, J. K., Bandara, S. V., Hong, W., Maker, P. D., Muller, R. E., ...
In this paper, we discuss the development of very sensitive long wavelength infrared GaAs/AlxGa1-xAs quantum well infrared photodetectors (QWIPs) based on bound-to-quasibound intersubband transition,...
New Convex Grating Types for Concentric Imaging Spectrometers (2004)
Mouroulis, P., Wilson, D. W., Maker, P. D., Maker, R. E., Muller, R. E.
The properties of convex gratings fabricated by electron-beam lithography are investigated. Three grating types are shown. These gratings allow the optical designer to fully realize the considerable...
Long-Wavelength 640 x 486 GaAs/AlGaAs Quantum Well Infrared Photodetector Snap-shot Camera (2004)
Gunapala, S. D., Bandara, S. V., Liu, J. K., Hong, W., Sundaram, M., Maker, P. D., ...
The performcance of this QWIP camera is reported including indoor and outdoor imaging.
Stitching-error reduction in gratings by shot-shifted electron-beam lithography (2004)
Dougherty, D. J., Muller, R. E., Maker, P. D., Forouhar, S.
Calculations of the grating spatial-frequency spectrum and the filtering properties of multiple-pass electron-beam writing demonstrate a tradeoff between stitching-error suppression and minimum pitch...
Diffractive optics for particle velocimetry and sizing (2004)
Wilson, D. W., Gogna, P. K., Chacon, R. J., Muller, R. E., Fourguette, D., Modarress, D., ...
Beam-shaping diffractive optical elements are used to create structured light patterns in fluid flows. Particle scattering results in detected signals that can be used to determine the particle size...
Tunable narrowband semiconductor reference oscillator technology for coherent detection lidar (2004)
Tratt, D. M., Mansour, K., Menzies, R. T., Qiu, Y., Forouhar, S., Maker, P. D., ...
Tunable narrowband semiconductor reference oscillator technology for coherent detection lidar (2004)
Tratt, D. M., Mansour, K., Menzies, R. T., Qiu, Y., Forouhar, S., Maker, P. D., ...
The coherent Doppler lidar approach for acquiring global profilometry of tropospheric winds from Earth orbit is reliant on off-nadir beam scanning geometry for retrieval of vector winds by Doppler...
Tratt, D. M., Mansour, K., Menzies, R. T., Maker, P. D., Chacon, R. J., Muller, R. E., ...
High power 2.05-mu m Fabry-Perot and distributed feedback (DFB) ridge waveguide lasers fabricated from epitaxially grown InGaAsSb/AlGaAsSb/GaSb and InGaAs/InP hetero-structures are reported.