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Proceedings Paper

Recent progress in W-structured type-II superlattice photodiodes
Author(s): E. H. Aifer; I. Vurgaftman; C. L. Canedy; J. H. Warner; E. M. Jackson; J. G. Tischler; J. R. Meyer
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Paper Abstract

Recently we have achieved significant improvements in the performance of LWIR type-II superlattice photodiodes, with discrete devices beginning to demonstrate dynamic impedance-area product (R0A) levels approaching the MCT trend line and quantum efficiency exceeding 30% in devices without anti-reflection coatings. We discuss the key innovations that have led to these improvements, including modified W-structures, band-gap grading, and hybrid superlattices.

Paper Details

Date Published: 2 February 2007
PDF: 11 pages
Proc. SPIE 6479, Quantum Sensing and Nanophotonic Devices IV, 64790Y (2 February 2007); doi: 10.1117/12.714794
Show Author Affiliations
E. H. Aifer, Naval Research Lab. (United States)
I. Vurgaftman, Naval Research Lab. (United States)
C. L. Canedy, Naval Research Lab. (United States)
J. H. Warner, Naval Research Lab. (United States)
E. M. Jackson, SFA, Inc. (United States)
J. G. Tischler, Naval Research Lab. (United States)
J. R. Meyer, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 6479:
Quantum Sensing and Nanophotonic Devices IV
Manijeh Razeghi; Gail J. Brown, Editor(s)

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