期刊
APPLIED PHYSICS LETTERS
卷 112, 期 9, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5017704
关键词
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资金
- National Science Foundation [1629570]
- National Key R&D Program of China [2017YFA0206401, 2016YFB0401804]
- Special Fund for Strategic Pilot Technology Chinese Academy Science [XDB24010100]
- Semiconductor Research Foundation Graduate Fellowship Program
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1629570] Funding Source: National Science Foundation
We propose an architecture for enhanced absorption in ultra-thin strained layer superlattice detectors utilizing a hybrid optical cavity design. Our detector architecture utilizes a designer-metal doped semiconductor ground plane beneath the ultra-subwavelength thickness long-wavelength infrared absorber material, upon which we pattern metallic antenna structures. We demonstrate the potential for near 50% detector absorption in absorber layers with thicknesses of approximately lambda(0)/50, using realistic material parameters. We investigate detector absorption as a function of wavelength and incidence angle, as well as detector geometry. The proposed device architecture offers the potential for high efficiency detectors with minimal growth costs and relaxed design parameters. Published by AIP Publishing.
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