Operation and performance of new NIR detectors from SELEX

D. Atkinson; N. Bezawada; L. G. Hipwood; N. Shorrocks; H. Milne

doi:10.1117/12.926024

25 September 2012 Operation and performance of new NIR detectors from SELEX

D. Atkinson, N. Bezawada, L. G. Hipwood, N. Shorrocks, H. Milne

Proceedings Volume 8453, High Energy, Optical, and Infrared Detectors for Astronomy V; 84530U (2012) https://doi.org/10.1117/12.926024
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

The European Space Agency (ESA) has funded SELEX Galileo, Southampton, UK to develop large format near infrared (NIR) detectors for its future space and ground based programmes. The UKATC has worked in collaboration with SELEX Galileo to test and characterise the new detectors produced during phase-1 of the development. In order to demonstrate the detector material performance, the HgCdTe (MCT) detector diodes (grown on GaAs substrate through MOVPE process in small 320×256, 24μm pixel format) are hybridised to the existing SELEX Galileo SWALLOW CMOS readout chip. The substrate removed and MCT thinned detector arrays were then tested and evaluated at the UKATC following screening tests at SELEX. This paper briefly describes the test setup, the operational aspects of the readout multiplexer and presents the performance parameters of the detector arrays including: conversion gain, detector dark current, read noise, linearity, quantum efficiency and persistence for various detector temperatures between 80K and 140K.

Citation Download Citation

D. Atkinson, N. Bezawada, L. G. Hipwood, N. Shorrocks, and H. Milne "Operation and performance of new NIR detectors from SELEX", Proc. SPIE 8453, High Energy, Optical, and Infrared Detectors for Astronomy V, 84530U (25 September 2012); https://doi.org/10.1117/12.926024

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