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Single Photon Sensitive HgCdTe Avalanche Photodiode Detector (APD)

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX07CA62P
Agency Tracking Number: 066861
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: S6.02
Solicitation Number: N/A
Solicitation Year: 2006
Award Year: 2007
Award Start Date (Proposal Award Date): 2007-01-19
Award End Date (Contract End Date): 2007-07-23
Small Business Information
12725 SW Millikan Way, Suite 230, Beaverton, OR, 97005-1687
DUNS: 124348652
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Andrew Huntington
 Principal Investigator
 (971) 223-5646
Business Contact
 Debra Ozuna
Title: Business Official
Phone: (971) 223-5646
Research Institution
A linear mode HgCdT electron-initiated avalanche photodiode (EAPD) capable of 1570nm photon detection efficiency (PDE) at >10 MHz will be developed. The Phase I design, is based on vertical-charge-transport HgCdTe EAPDs recently fabricated using a 3.8-micron wavelength cutoff HgCdTe alloys, which showed excellent 1570nm response, nearly noiseless gain, >650, and GHz bandwidth operation at thermoelectric temperatures. During Phase I, we will perform tradeoff analysis to determine the optimal HgCdTe alloy composition for the application. As example, shortening the cutoff wavelength (e.g. 2-microns) will result in a HgCdTe alloy with reduce dark current and/or higher temperature operation, but will result in a concomitant gain reduction and thereby compromise PDE. In Phase I, we will develop the optimal HgCdTe LPE alloy and we will also modifying our low noise amplifiers (LNA) to match the higher capacitance of the HgCdTe APD, so optimal PDE is achieved. We will deliver at least one packaged part to NASA. During Phase II, we will further optimize the detector, integrate it with the LNA, and deliver a fully-functional, single photon counting module to NASA.

* Information listed above is at the time of submission. *

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