Sharp infrared eyes: the journey of QWIPs from concept to large inexpensive sensitive arrays in hand-held infrared cameras

• Autorzy: Gunapala, S. , Bandara, S. , Liu, J. , Sundaram, M.
• Języki publikacji: EN

Abstrakty

EN

Arguably one of the simplest device realizations of the classic particle-in-a-box problem of basic quantum mechanics is the Quantum Well Infrared Photodetector (QWIP). Optimization of the detector design and material growth and processing has culminated in the realization of a portable infrared camera with a large (256 x 256 pixel ) focal plane array of QWIPs which can see at 8.5 um, holding forth great promise for a variety of applications in the 8-14 um wavelength range. In this paper we discuss the physics and technology of the QWIP and report on the performance of the world's first hand-held infrared camera at these long wavelengths.

Słowa kluczowe

EN

quantum well infrared photodetectors; focal plane arrays; dark current; light coupling; figures of merit; imaging camera

• Czasopismo: Opto-Electronics Review
• Rocznik: 1999
• Tom: Vol. 7, No. 4
• Strony: 271-282
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Gunapala, S.

autor

Bandara, S.

autor

Liu, J.

autor

Sundaram, M.

• Jet Propulsion Laboratory, California Institute of Technology Pasadena, California 91109, USA,