Predictions of the responsivity of terahertz quantum well infrared photodetectors

Mazin A. Gadir; Paul Harrison; Richard A. Soref

doi:10.1117/12.480307

1 July 2003 Predictions of the responsivity of terahertz quantum well infrared photodetectors

Mazin A. Gadir, Paul Harrison, Richard A. Soref

Proceedings Volume 4999, Quantum Sensing: Evolution and Revolution from Past to Future; (2003) https://doi.org/10.1117/12.480307
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

Abstract

This letter focuses on the first-principles model of the photocurrent in quantum well infrared photodetectors (QWIPs). The model explores the absorption coefficient measured experimentally. Then we move to show how the responsivity and quantum efficiency vary with α. The work in this paper shows that the device response indeed increases as QWIPs are designed and fabricated to detect longer wavelengths despite the fall in device performance as a result of the growing effect of the dark (noise) current.

Citation Download Citation

Mazin A. Gadir, Paul Harrison, and Richard A. Soref "Predictions of the responsivity of terahertz quantum well infrared photodetectors", Proc. SPIE 4999, Quantum Sensing: Evolution and Revolution from Past to Future, (1 July 2003); https://doi.org/10.1117/12.480307

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