Optimization of two dimensional gratings for very long wavelength quantum well infrared photodetectors

G. Sarusi; B. F. Levine; S. J. Pearton; K. M.S. Bandara; R. E. Leibenguth; J. Y. Andersson

doi:10.1063/1.357209

Optimization of two dimensional gratings for very long wavelength quantum well infrared photodetectors

G. Sarusi, B. F. Levine, S. J. Pearton, K. M.S. Bandara, R. E. Leibenguth, J. Y. Andersson

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

We have performed a detailed study of two-dimensional grating coupling for quantum well infrared photodetectors in the very long wavelength spectral region λ∼16-17 μm. Using calculations based on the modal expansion method we quantitatively explain the double peaked responsivity spectrum. By optimizing the grating parameters we achieve a normal incidence responsivity and detectivity which are three times larger than the 45° angle of incidence geometry.

Original language	English
Pages (from-to)	4989-4994
Number of pages	6
Journal	Journal of Applied Physics
Volume	76
Issue number	9
DOIs	https://doi.org/10.1063/1.357209
State	Published - 1 Dec 1994
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.357209

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title = "Optimization of two dimensional gratings for very long wavelength quantum well infrared photodetectors",

abstract = "We have performed a detailed study of two-dimensional grating coupling for quantum well infrared photodetectors in the very long wavelength spectral region λ∼16-17 μm. Using calculations based on the modal expansion method we quantitatively explain the double peaked responsivity spectrum. By optimizing the grating parameters we achieve a normal incidence responsivity and detectivity which are three times larger than the 45° angle of incidence geometry.",

author = "G. Sarusi and Levine, {B. F.} and Pearton, {S. J.} and Bandara, {K. M.S.} and Leibenguth, {R. E.} and Andersson, {J. Y.}",

year = "1994",

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AU - Sarusi, G.

AU - Levine, B. F.

AU - Pearton, S. J.

AU - Bandara, K. M.S.

AU - Leibenguth, R. E.

AU - Andersson, J. Y.

PY - 1994/12/1

Y1 - 1994/12/1

N2 - We have performed a detailed study of two-dimensional grating coupling for quantum well infrared photodetectors in the very long wavelength spectral region λ∼16-17 μm. Using calculations based on the modal expansion method we quantitatively explain the double peaked responsivity spectrum. By optimizing the grating parameters we achieve a normal incidence responsivity and detectivity which are three times larger than the 45° angle of incidence geometry.

AB - We have performed a detailed study of two-dimensional grating coupling for quantum well infrared photodetectors in the very long wavelength spectral region λ∼16-17 μm. Using calculations based on the modal expansion method we quantitatively explain the double peaked responsivity spectrum. By optimizing the grating parameters we achieve a normal incidence responsivity and detectivity which are three times larger than the 45° angle of incidence geometry.

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Optimization of two dimensional gratings for very long wavelength quantum well infrared photodetectors

Abstract

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