31 May 2012 InGaAs focal plane array developments at III-V Lab
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Proceedings Volume 8353, Infrared Technology and Applications XXXVIII; 835308 (2012); doi: 10.1117/12.921134
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States
SWIR detection band benefits from natural (sun, night glow, thermal radiation) or artificial (eye safe lasers) photons sources combined to low atmospheric absorption and specific contrast compared to visible wavelengths. It gives the opportunity to address a large spectrum of applications such as defense and security (night vision, active imaging), space (earth observation), transport (automotive safety) or industry (non destructive process control). InGaAs material appears as a good candidate to satisfy SWIR detection needs. The lattice matching with InP constitutes a double advantage to this material: attractive production capacity and uncooled operation thanks to low dark current level induced by high quality material. For few years, III-VLab has been studying InGaAs imagery, gathering expertise in InGaAs material growth and imaging technology respectively from Alcatel-Lucent and Thales, its two mother companies. This work has lead to put quickly on the market a 320x256 InGaAs module, exhibiting high performances in terms of dark current, uniformity and quantum efficiency. In this paper, we present the last developments achieved in our laboratory, mainly focused on increasing the pixels number to VGA format associated to pixel pitch decrease (15μm) and broadening detection spectrum toward visible wavelengths. Depending on targeted applications, different Read Out Integrated Circuits (ROIC) have been used. Low noise ROIC have been developed by CEA LETI to fit the requirements of low light level imaging whereas logarithmic ROIC designed by NIT allows high dynamic imaging adapted for automotive safety.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anne Rouvié, Jean-Luc Reverchon, Odile Huet, Anis Djedidi, Jean-Alexandre Robo, Jean-Patrick Truffer, Toufiq Bria, Mauricio Pires, Jean Decobert, Eric Costard, "InGaAs focal plane array developments at III-V Lab", Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 835308 (31 May 2012); doi: 10.1117/12.921134; https://doi.org/10.1117/12.921134

Indium gallium arsenide

Readout integrated circuits


Short wave infrared radiation

Visible radiation




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