QWIP from 4μm up to 18μm

Costard, E.; Truffer, J. P.; Huet, O.; Dua, Lydie; Nedelcu, Alexandre; Robo, J. A.; Marcadet, X.; l'Isle, Nadia Brèire de; Bois, P.

doi:10.1117/12.693476

Cited by 7 publications

(4 citation statements)

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“…Our first results in 2006 supported the feasibility of high operability (>99.9%) and high uniformity (sigma/mean=4%) FPAs [3]. The operability and the electro-optical performance were improved in 2007, with several hybrid FPAs characterised and tested [4].…”

Section: Introductionmentioning

confidence: 53%

Enhanced broadband (11-15 µm) QWIP FPAs for space applications

l'Isle¹,

Truffer²,

Belhaire³

et al. 2017

International Conference on Space Optics — ICSO 2008

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A thirty months ESA project started in March 2008, whose purpose is to expand and assess the performance of broadband (11-15µm) quantum detectors for spectro-imaging applications: Fourier Transform Spectrometers and Dispersive Spectrometers. We present here the technical requirements, the development approach chosen as well as preliminary signal to noise ratio (SNR) calculations. Our approach is fully compatible with the final array format (1024x256, pitch 50-60µm). We expect the requested uniformity, operability and SNR levels to be achieved at the goal temperatures (60K for FTS applications and 50K for DS applications). The performance level will be demonstrated on 256x256, 50µm pitch arrays. Also, operability and uniformity issues will be addressed on large mechanical 1024x256 hybrid arrays.

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Section: Introductionmentioning

confidence: 53%

Enhanced broadband (11-15 µm) QWIP FPAs for space applications

l'Isle¹,

Truffer²,

Belhaire³

et al. 2017

International Conference on Space Optics — ICSO 2008

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“…The III-V Lab has already fabricated and tested QWIP FPAs with cut-off wavelengths higher than 15 μm. 1 We report in Fig. 32 an example of a dead pixel map for a 15 μm-QWIP hybrid (operability of 99.96%).…”

Section: Vlw Qwipsmentioning

confidence: 98%

“…1 some experimental results achieved at the III-V Lab. 1 As far as two-dimensional (2D) arrays are concerned, the advantages associated with this GaAs-based technology become crucial. The large size substrates, uniformity, and yield of the III-V process lead to available and affordable large format FPAs.…”

Section: Introductionmentioning

confidence: 99%

Quantum well infrared photodetectors: present and future

et al. 2011

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A review of the III-V Lab activities in the field of quantum well infrared photodetectors (QWIPs) is presented. We discuss the specific advantages of this type of detector and present the production facilities and status. A large section is dedicated to broadband QWIPs for space applications and to QWIPs on InP for mid-wavelength infrared detection. We review the progress of QWIP technology for the next generation (dual band, polarimetric, and multispectral) of thermal imagers. Finally, the state-of-the-art of very long wavelength QWIPs is discussed. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). IntroductionAt the III-V Lab, research on quantum well infrared photodetectors (QWIPs) has always been driven by the needs and constraints set by the operational systems. Reliable infrared (IR) cameras for Thales applications need high temperature operation (T FPA > 73 K), low integration time (T INT < 5 ms) to achieve high imaging rates and true microscanning, high instantaneous dynamic range ( + 50 • C) to accurately image objects much hotter than the background. They also need small pitch focal plane arrays (FPAs) (<25 μm) in order to get compact and low cost systems.In this context, parameters such as specific detectivity (D*) or ultimate background limited performance are no more relevant. Moreover, FPA uniformity, stability, peak wavelength reproducibility, and process mastering play an important role. These are reasons why at the III-V Lab, research relies on production facilities.QWIPs have been widely investigated for detection in the mid-wavelength (MW, 3 to 5 μm), long wavelength (LW,8 to

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“…Thanks to the tunability of the quantum well heterostructure (alloy composition, layer thickness, etc...), QWIPs have been demonstrated from 3 µm to 80 µm. We present in Figure 1 some experimental results achieved at the III-V Lab [1] .…”

Section: Introductionmentioning

confidence: 96%

QWIP status and future trends at Thales

Bois

Guériaux

l'Isle³

et al. 2012

Quantum Sensing and Nanophotonic Devices IX

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Since 2005, Thales is successfully manufacturing QWIPs in high rate production through III-V Lab. All the early claimed advantages of QWIPs are now demonstrated. The versatility of the band-gap engineering allows the custom design of detectors to fulfill specific application requirements in MWIR, LWIR or VLWIR ranges. The maturity of the III-V microelectronics based on GaAs substrates gives uniformity, stability and high production rate. In this presentation we will discuss the specific advantages of this type of detector. An overview of the available performances and production status will be presented including under-development products such as dual band and polarimetric sensors.

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QWIP from 4μm up to 18μm

Cited by 7 publications

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Enhanced broadband (11-15 µm) QWIP FPAs for space applications

Enhanced broadband (11-15 µm) QWIP FPAs for space applications

Quantum well infrared photodetectors: present and future

QWIP status and future trends at Thales

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