Evolution of quantum detectors from VLWIR to FIR

A. G. Unil Perera

doi:10.1117/12.479619

1 July 2003 Evolution of quantum detectors from VLWIR to FIR

A. G. Unil Perera

Proceedings Volume 4999, Quantum Sensing: Evolution and Revolution from Past to Future; (2003) https://doi.org/10.1117/12.479619
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

Abstract

Evolution of devices for detecting smaller and smaller energy photons starting from the infrared region of the electromagnetic spectrum is described. A brief description of the extrinsic detector development for LWIR to FIR wavelengths is presented. Several other types of IR detectors including the cutoff wavelength extension into the FIR range for quantum well infrared photodetectors (QWIPs) are presented. Efforts in developing p-GaAs Homojunction Interfacial Workfunction Internal Photoemission (HIWIP) far-infrared detectors and the most recent development in GaAs/AlGaAs HEterojunction interfacial workfunction internal photoemission (HEIWIP) far-infrared detectors are also presented.

Citation Download Citation

A. G. Unil Perera "Evolution of quantum detectors from VLWIR to FIR", Proc. SPIE 4999, Quantum Sensing: Evolution and Revolution from Past to Future, (1 July 2003); https://doi.org/10.1117/12.479619

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