Development and production of QWIP focal plane arrays at ACREO
| Autor: | Y Lindberg-Eriksson, Z. Fakoor-Biniaz, Jorgen Alverbro, Hedda Malm, O Öberg, C Nordahl, P. Helander, Henk Martijn, Jan Borglind, A Bustamente, Urban Halldin, Jan Y. Andersson, Bernhard Hirschauer |
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| Rok vydání: | 2001 |
| Předmět: |
Physics
business.industry Detector Photodetector Condensed Matter Physics Atomic and Molecular Physics and Optics Particle detector Electronic Optical and Magnetic Materials Gallium arsenide Responsivity chemistry.chemical_compound Optics chemistry Optoelectronics Infrared detector Quantum well infrared photodetector business Quantum well |
| Zdroj: | Infrared Physics & Technology. 42:329-332 |
| ISSN: | 1350-4495 |
| DOI: | 10.1016/s1350-4495(01)00091-3 |
| Popis: | Due to the well established gallium arsenide material processing technology quantum well infrared photodetectors (QWIPs) are suitable for high resolution infrared detector arrays, operating in the LWIR or MWIR region, or simultaneous detection in both (LWIR = 8-12 μm and MWIR = 3-5.5 μm). Today the QWIPs are mature enough to be manufactured for both commercial and defence applications. ACREO (earlier IMC and IM) has been involved in QWIP research and development since 1986. The first years were dedicated to research on QWIP structures and means of coupling radiation into the quantum well (QW) structure. The latter was an essential task due to the peculiar absorption characteristics of intersubband transitions in QWs. The solution was to make use of a two-dimensional optical grating for creating an optimal electric field pattern for highest possible absorption and responsivity. Today's activities consist of continuing R&D on next generation QWIP detector arrays such as higher resolution arrays (640 x 480 pixels and larger), MWIR detectors as well as dual wavelength devices (simultaneous MWIR and LWIR detection). In parallel with this work ACREO is involved in manufacturing of 320 x 240 pixels LWIR detector arrays to be included in FLIR Systems' cameras. |
| Databáze: | OpenAIRE |
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