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Single Photon Sensitive HgCdTe Avalanche Photodiode Detector (APD) Project

Summary

Type of release
a one-off release of a single dataset

Data Licence
Not Applicable

Content Licence
Creative Commons CCZero

Verification
automatically awarded

Release Date
9 April 2015
Modified Date
8 July 2015
Publishers
National Aeronautics and Space Administration
Keywords
completed, goddard-space-flight-center, project
Identifier
single-photon-sensitive-hgcdte-avalanche-photodiode-detector-apd-project
Landing Page
http://techport.nasa.gov/view/6038
Maintainers
TECHPORT SUPPORT hq-techport@mail.nasa.gov
Language
en-US

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Description

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.

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This dataset has been created by US Government which means it is required to be in the public domain. However US copyright law only allows open access by US citizens, we have assumed the data is equivalently licensed as CC0 for the rest of the world as this is in the spirit of the US Government’s Open Data policy.

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