Noiseless Near-Infrared Photon Counting Avalanche Photodiode Detectors

Metadata Updated: February 28, 2019

This proposal concerns the research and development of a mercury cadmium telluride (HgCdTe) Avalanche Photodiode (APD) array for use as a low-noise science detector in optical and near-infrared (O/NIR) instruments and observatories, and is specifically an application for a NASA Space Technology Research Fellowship to accelerate this project and enable greater graduate student involvement. Prototypical 32 x 32 APD arrays currently in production at Raytheon Vision Systems (RVS) will be commissioned and characterized at the Institute for Astronomy (IfA) in Hilo, Hawai'i. Commissioning will require developing and adapting an interface for detector operation, and characterizing will be accomplished in existing cryogenic platforms. The arrays will also be given trial runs using the astronomical facilities on Manua Kea, including the University of Hawai'i 2.2m telescope and the Canada-France-Hawai'i Telescope. Following validation of the prototype arrays, the RVS -IfA collaboration will upscale production to large-format megapixel APD arrays, design and implement long-term control and operation schemes, and begin incorporation of the arrays into upcoming instrument designs. The avalanche signal amplification of these HgCdTe APD arrays produces effectively noiseless signals useful for astronomical observations, and will likely see deployment in both ground- and space-based telescopes. Near-infrared photon counting is unprecedented and will permit observations that previously required excessive observation times, particularly with regards to dim photon-starved targets. The wavelength versatility of HgCdTe from the visible to 5-micron-plus makes these devices suitable for a broad range of applications, and their deployment is expected to be revolutionary for observational astronomy.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_91563
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id b3c5917c-aae4-4a01-9ee2-e2d577702d02
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2017-08-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 35710f7c01ce387fa9c78cf3b248d0859a96534f
Source Schema Version 1.1

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