DOI: 10.1063/1.101079. GaAs/AlGaAs multiquantum well infrared detector arrays using etched gratings

GaAs/AlGaAs multiquantum well infrared detector arrays using etched gratings

10.1063/1.101079

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

Efficient coupling of long-wavelength infrared (LWIR) radiation to a two-dimensional (2-D) array of GaAs/AlGaAs multiple quantum well detectors is achieved by illumination through chemically etched diffraction gratings. Gratings were fabricated on the back surface of the GaAs substrate as well as selectively on the top contact of the detector mesas. Both top and bottom illumination schemes were employed. In all cases, high coupling efficiency (&gt;90%) of the gratings was observed as measured by comparing the responsivity to that of an identical detector illuminated through an angle-polished facet. The results demonstrate the feasibility of high-sensitivity GaAs LWIR imagers.

Bibliography

Hasnain, G., Levine, B. F., Bethea, C. G., Logan, R. A., Walker, J., & Malik, R. J. (1989). GaAs/AlGaAs multiquantum well infrared detector arrays using etched gratings. Applied Physics Letters, 54(25), 2515â2517.

Authors 6

G. Hasnain (first)
B. F. Levine (additional)
C. G. Bethea (additional)
R. A. Logan (additional)
J. Walker (additional)
R. J. Malik (additional)

References 9 Referenced 121

10.1063/1.99918 / Appl. Phys. Lett. (1988)
{'key': '2024020223461704100_r2', 'volume': '54', 'year': '1989', 'journal-title': 'Appl. Phys. Lett.'} / Appl. Phys. Lett. (1989)
{'key': '2024020223461704100_r3', 'volume': '66', 'year': '1989', 'journal-title': 'J. Appl. Phys. Lett.'} / J. Appl. Phys. Lett. (1989)
10.1103/PhysRevLett.33.960 / Phys. Rev. Lett. (1974)
10.1016/0038-1098(76)90541-X / Solid State Commun. (1976)
10.1063/1.97928 / Appl. Phys. Lett. (1987)
10.1103/PhysRevB.39.8029 / Phys. Rev. B (1989)
10.1063/1.97706 / Appl. Phys. Lett. (1987)
10.1063/1.100054 / Appl. Phys. Lett. (1988)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:02 a.m.)
Deposited	1 year, 6 months ago (Feb. 2, 2024, 6:46 p.m.)
Indexed	5 months, 1 week ago (March 19, 2025, 8:41 a.m.)
Issued	36 years, 2 months ago (June 19, 1989)
Published	36 years, 2 months ago (June 19, 1989)
Published Print	36 years, 2 months ago (June 19, 1989)

Funders 0

None

BibTeX

@article{Hasnain_1989, title={GaAs/AlGaAs multiquantum well infrared detector arrays using etched gratings}, volume={54}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.101079}, DOI={10.1063/1.101079}, number={25}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Hasnain, G. and Levine, B. F. and Bethea, C. G. and Logan, R. A. and Walker, J. and Malik, R. J.}, year={1989}, month=jun, pages={2515–2517} }

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