CCD-scale Far-IR Detector Arrays Using Code Domain Multiplexing

Metadata Updated: February 28, 2019

Large-format far-infrared arrays using, for example, superconducting transition edge sensor (TES) bolometers, have only achieved 1,000-pixel formats. Lagging behind other wavelengths due to lesser commercial/industrial technology investments, the potential for revolutionary improvement to megapixel formats has been the long term goal for far-infrared detector research for the past decade, when single-pixel detectors achieved background-limited performance for most applications.[HTML_REMOVED]The greatest challenge for producing very large (greater than 10 kpix) format far-IR detectors is in readout multiplexing. Several approaches (for TES detectors, time domain, audio frequency domain, and microwave frequency domain SQUID multiplexing) have been demonstrated in laboratory and a few ground-based experiments. However, none of these techniques has yet fielded a system with better than 40:1 multiplexing ratios. For very large arrays, this is a limiting constraint. Recently-developed Code Domain multiplexing (CDM) promises 100:1 multiplexing on a two-year timescale, with 10,000:1 multiplexing ratios over longer timescales.[HTML_REMOVED]We will demonstrate the CDM technology necessary to scale up to produce spaceworthy, far-infrared detector arrays scalable to 40,000 pixels. For this program, we are partnering with Stanford University, who will provide CDM multiplexers. We will assemble the[HTML_REMOVED]multiplexers[HTML_REMOVED]into a scalable detector test configuration to demonstrate operation and evaluate the achievable multiplex factors. The final result of this work will be to build and demonstrate a complete end-to-end CDM-based SQUID readout of a far-IR bolometer array.[HTML_REMOVED]Stanford will develop and provide the multiplexers; Goddard will purchase and assemble the electronics and software necessary to use the multiplexers; Goddard will fabricate and integrate a small TES bolometer array in a package customized for this purpose.

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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

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_14591
Maintainer Email
Public Access Level public
Bureau Code 026:00
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Harvest Object Id de7ff108-f455-42d6-8642-5f3896fd0114
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2014-09-01
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Data Last Modified 2018-07-19
Program Code 026:027
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Source Hash b6eacda29bdda244946df61bd4f3c0afd021c1de
Source Schema Version 1.1

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