Mr. Ernest W. Atkins Profile

Ernest W. Atkins

Associate Technical Fellow at Leonardo DRS

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Author

Publications (5)

Proceedings Article | 2 September 2010 Paper

Update on blocked impurity band detector technology from DRS

H. Hogue, E. Atkins, D. Reynolds, M. Salcido, L. Dawson, D. Molyneux, M. Muzilla

Proceedings Volume 7780, 778004 (2010) https://doi.org/10.1117/12.862708

KEYWORDS: Sensors, Staring arrays, Silicon, Space telescopes, Infrared sensors, Interference (communication), Infrared radiation, Doping, Electrons, Terahertz radiation

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Proceedings Article | 14 September 2005 Paper

A new large-well 1024x1024 Si:As detector for the mid-infrared

A. Mainzer, John Hong, M. Stapelbroek, Henry Hogue, Dale Molyneux, Michael Ressler, Ernie Atkins, John Reekstin, Mike Werner, Erick Young

Proceedings Volume 5881, 58810Y (2005) https://doi.org/10.1117/12.633492

KEYWORDS: Space telescopes, Sensors, Telescopes, Spatial resolution, James Webb Space Telescope, Mid-IR, Infrared telescopes, Spectroscopy, Infrared radiation, Saturn

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Proceedings Article | 10 October 2003 Paper

Silicon for visible-to-VLWIR photon detection

Maryn Stapelbroek, Henry Hogue, Ernest Atkins, David Reynolds, Arvind D'Souza

Proceedings Volume 5074, (2003) https://doi.org/10.1117/12.487290

KEYWORDS: Sensors, Silicon, Infrared radiation, Photodetectors, Infrared sensors, Photon counting, Visible radiation, Electrons, Solid state electronics, Staring arrays

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Photon detectors and focal plane arrays (FPAs) are fabricated from silicon in many varieties. With appropriate choices for detector architecture, dopants, and operating temperature, silicon can cover the spectral range from ultraviolet to the very-long-wavelength infrared (VLWIR), exhibit high internal gain to allow photon counting over this broad spectral range, and can be made in large array formats for imaging. DRS makes silicon detectors and FPAs with unique architectures for a variety of applications. Large-format, VLWIR FPAs based on doped-silicon Blocked-Impurity-Band (BIB) detectors have been developed. These FPAs comprise an array of BIB detectors interfaced via indium column interconnects to a matching read-out integrated circuit (ROIC). Arsenic-doped silicon (Si:As) BIB detector arrays with useful photon response out to about 28 μm are the most fully developed embodiment of this technology. FPAs with Si:As BIB arrays have been made in a variety of pixel formats (to 1024²) and have been optimized for low, moderate, and high infrared backgrounds. Antimony-doped silicon (Si:Sb) BIB arrays having response to wavelengths 40 μm have also been demonstrated. Avalanche processes in Si:As at low temperatures (~ 8 K) have led to two unique solid-state photon-counting detectors adapted to infrared and visible wavelengths. The infrared device is the solid-state photomultiplier (SSPM). To our knowledge, it is the only detector capable of counting VLWIR photons (formula available in paper) with high quantum efficiency. A related device optimized for the visible spectral region is the visible-light photon counter (VLPC). The VLPC is a nearly ideal device for detection of small bunches of photons with excellent time resolution. VLPCs coupled to scintillating fibers have demonstrated new capabilities for energetic charged particle tracking in high-energy physics. A fiber tracking system that utilizes VLPCs is currently in operation in the D0 detector at Fermilab's Tevatron. VLPCs may also be useful for quantum cryptography and quantum computation. Finally, DRS makes imaging arrays of pin-diodes utilizing the intrinsic silicon photoresponse to provide high performance over the 0.4 - 1.0 μm spectral range operating near room temperature. pin-diode arrays are particularly attractive as an alternative to charge-coupled devices (CCDs) for space applications where radiation hardening is needed.

Proceedings Article | 5 March 2003 Paper

Space mid-IR detectors from DRS

Henry Hogue, Matthew Guptill, David Reynolds, Ernest Atkins, Maryn Stapelbroek

Proceedings Volume 4850, (2003) https://doi.org/10.1117/12.461584

KEYWORDS: Sensors, Silicon, Space telescopes, Detector development, Germanium, Mid-IR, Staring arrays, Readout integrated circuits, Quantum efficiency, Detector arrays

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Proceedings Article | 5 August 2002 Paper

Two-color blocked-impurity-band detector arrays

Maryn Stapelbroek, Ernest Atkins

Proceedings Volume 4721, (2002) https://doi.org/10.1117/12.478847

KEYWORDS: Sensors, Microlens, Staring arrays, Semiconducting wafers, Optical alignment, Detector arrays, Silicon, Etching, Chromatic aberrations, Optical filters

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