Translator Disclaimer
8 September 1995 15-um cut-off 128 x 128 quantum well infrared photodetectors (QWIPs) camera
Author Affiliations +
We discuss the development and the performances of a very long wavelength (13.5 - 15 micrometer) 128 by 128 AlGaAs/GaAs multiquantum well infrared imaging system. A highly uniform, high-yield QWIP focal plane array was hybridized to a CMOS multiplexer operating in a direct injection mode. For efficient light coupling an integral random scattering reflector (random grating) was incorporated. Due to the high uniformity, excellent imagery, low noise as well as a noise equivalent temperature difference (NE(Delta) T) of less than 30 mK were obtained when operating around 45 K. Therefore, high image contrast signal to noise ratio has been achieved.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gabby Sarusi, Sarath D. Gunapala, Jin Suk Park, John K. Liu, T. L. Lin, Paul D. Maker, Richard E. Muller, and Barry F. Levine "15-um cut-off 128 x 128 quantum well infrared photodetectors (QWIPs) camera", Proc. SPIE 2552, Infrared Technology XXI, (8 September 1995); doi: 10.1117/12.218247;

Back to Top