Addressable Monolithic InSb on GaAs Focal Plane Arrays for MWIR Imaging

Cumming, D. R.S. and Pusino, V. (2023) Addressable Monolithic InSb on GaAs Focal Plane Arrays for MWIR Imaging. In: 9th IEEE International Workshop on Advances in Sensors and Interfaces, Monopoli, Italy, 08-09 Jun 2023, ISBN 9798350336948 (doi: 10.1109/IWASI58316.2023.10164484)

Abstract

Mid-wave infrared sensing and imaging is of growing importance for the detection of environmental greenhouse gases such as CO 2 and CH 4 . The ability to survey large infrastructure in addition to making single point measurements will bring many advantages to industrial asset management in particular. Existing technology for MWIR imaging relies on costly flip chipped technology and cryogenic cooling. We have investigated a monolithic integrated technology that can be made in a traditional planar process and operates at room temperature. By growing III-V wafers with a GaAs transistor layer and an InSb photodetection layer we are able to eliminate the need for a two-chip solution and the complex fabrication steps traditionally required. We present the method for making monolithic sensors and preliminary results demonstrating the imaging and gas sensing capabilities of the new technology.

• Item Type: Conference Proceedings
• Additional Information: This work was funded by the UK Quantum Technology Hub in Quantum Imaging, EPSRC EP/T00097X/1.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Cumming, Professor David and Pusino, Dr Vincenzo
• Authors: Cumming, D. R.S., and Pusino, V.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISSN: 2836-7936
• ISBN: 9798350336948
• Copyright Holders: Copyright © 2023 IEEE
• First Published: First published in 2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

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Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
305567		QuantIC - The UK Quantum Technoogy Hub in Quantum Enhanced Imaging	Miles Padgett	Engineering and Physical Sciences Research Council (EPSRC)	EP/T00097X/1	P&S - Physics & Astronomy