New resonant cavity-enhanced absorber structures for mid-infrared detector applications

Moshe Zohar; Mark Auslender; Lorenzo Faraone; Shlomo Hava

doi:10.1007/s11082-011-9515-2

New resonant cavity-enhanced absorber structures for mid-infrared detector applications

Moshe Zohar, Mark Auslender, Lorenzo Faraone, Shlomo Hava

Department of Electrical & Computer Engineering

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

14 Scopus citations

Abstract

A new dielectric Fabry-Perot cavity was designed for a resonant enhancing optical absorption by a thin absorber layer embedded into the cavity. In this cavity, the front mirror is a subwavelength grating with - 100% retroreflection. For a HgCdTe absorber in a matching cavity of the new type, the design is shown to meet the combined challenges of increasing the absorbing efficiency of the entire device up to - 100% and reducing its size and overall complexity, compared to a conventional resonant cavity enhanced HgCdTe absorber, while maintaining a fairly good tolerance against the grating's fabrication errors.

Original language	English
Pages (from-to)	95-102
Number of pages	8
Journal	Optical and Quantum Electronics
Volume	44
Issue number	3-5
DOIs	https://doi.org/10.1007/s11082-011-9515-2
State	Published - 1 Jun 2012

Keywords

Gratings
HgCdTe
Optical resonant cavity
Photodetectors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1007/s11082-011-9515-2

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title = "New resonant cavity-enhanced absorber structures for mid-infrared detector applications",

abstract = "A new dielectric Fabry-Perot cavity was designed for a resonant enhancing optical absorption by a thin absorber layer embedded into the cavity. In this cavity, the front mirror is a subwavelength grating with - 100\% retroreflection. For a HgCdTe absorber in a matching cavity of the new type, the design is shown to meet the combined challenges of increasing the absorbing efficiency of the entire device up to - 100\% and reducing its size and overall complexity, compared to a conventional resonant cavity enhanced HgCdTe absorber, while maintaining a fairly good tolerance against the grating's fabrication errors.",

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author = "Moshe Zohar and Mark Auslender and Lorenzo Faraone and Shlomo Hava",

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T1 - New resonant cavity-enhanced absorber structures for mid-infrared detector applications

AU - Zohar, Moshe

AU - Auslender, Mark

AU - Faraone, Lorenzo

AU - Hava, Shlomo

PY - 2012/6/1

Y1 - 2012/6/1

N2 - A new dielectric Fabry-Perot cavity was designed for a resonant enhancing optical absorption by a thin absorber layer embedded into the cavity. In this cavity, the front mirror is a subwavelength grating with - 100% retroreflection. For a HgCdTe absorber in a matching cavity of the new type, the design is shown to meet the combined challenges of increasing the absorbing efficiency of the entire device up to - 100% and reducing its size and overall complexity, compared to a conventional resonant cavity enhanced HgCdTe absorber, while maintaining a fairly good tolerance against the grating's fabrication errors.

AB - A new dielectric Fabry-Perot cavity was designed for a resonant enhancing optical absorption by a thin absorber layer embedded into the cavity. In this cavity, the front mirror is a subwavelength grating with - 100% retroreflection. For a HgCdTe absorber in a matching cavity of the new type, the design is shown to meet the combined challenges of increasing the absorbing efficiency of the entire device up to - 100% and reducing its size and overall complexity, compared to a conventional resonant cavity enhanced HgCdTe absorber, while maintaining a fairly good tolerance against the grating's fabrication errors.

KW - Gratings

KW - HgCdTe

KW - Optical resonant cavity

KW - Photodetectors

UR - https://www.scopus.com/pages/publications/84861856060

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DO - 10.1007/s11082-011-9515-2

M3 - Article

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SN - 0306-8919

VL - 44

SP - 95

EP - 102

JO - Optical and Quantum Electronics

JF - Optical and Quantum Electronics

IS - 3-5

ER -

New resonant cavity-enhanced absorber structures for mid-infrared detector applications

Abstract

Keywords

ASJC Scopus subject areas

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