Quantum dots-based all-optical-readout middle-far-infrared imaging

Gang Chen; Rainer Martini

doi:10.1109/JQE.2010.2080260

Quantum dots-based all-optical-readout middle-far-infrared imaging

Gang Chen
, Rainer Martini

Chongqing University

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

2 Scopus citations

Abstract

A quantum dot (QD) middle-far-infrared (MFIR) detection and imaging approach based on all-optical-readout (AORO) is proposed. Using the intersubband (ISB) optical transition to change the interband (IB) absorption, it converts the ISB MFIR signal into the IB near-infrared signal. It might overcome the problems in the electrical readout infrared detection and imaging, such as dark current, low-temperature operation, low resolution, and vulnerability to the high radiation intensity. Based on the In_0.5Ga_0.5As GaAs lens-shaped QD structure, our calculation shows the potential of this AORO approach for the MFIR detection and high-resolution imaging, the potential for room-temperature operation, and the ability for frequency selectivity and spectrum scanning.

Original language	English
Article number	5716914
Pages (from-to)	285-292
Number of pages	8
Journal	IEEE Journal of Quantum Electronics
Volume	47
Issue number	3
DOIs	https://doi.org/10.1109/JQE.2010.2080260
State	Published - 2011

Keywords

Infrared detectors
infrared imaging
optical modulation
quantum dots

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10.1109/JQE.2010.2080260

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title = "Quantum dots-based all-optical-readout middle-far-infrared imaging",

abstract = "A quantum dot (QD) middle-far-infrared (MFIR) detection and imaging approach based on all-optical-readout (AORO) is proposed. Using the intersubband (ISB) optical transition to change the interband (IB) absorption, it converts the ISB MFIR signal into the IB near-infrared signal. It might overcome the problems in the electrical readout infrared detection and imaging, such as dark current, low-temperature operation, low resolution, and vulnerability to the high radiation intensity. Based on the In0.5Ga0.5As GaAs lens-shaped QD structure, our calculation shows the potential of this AORO approach for the MFIR detection and high-resolution imaging, the potential for room-temperature operation, and the ability for frequency selectivity and spectrum scanning.",

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AU - Chen, Gang

AU - Martini, Rainer

PY - 2011

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N2 - A quantum dot (QD) middle-far-infrared (MFIR) detection and imaging approach based on all-optical-readout (AORO) is proposed. Using the intersubband (ISB) optical transition to change the interband (IB) absorption, it converts the ISB MFIR signal into the IB near-infrared signal. It might overcome the problems in the electrical readout infrared detection and imaging, such as dark current, low-temperature operation, low resolution, and vulnerability to the high radiation intensity. Based on the In0.5Ga0.5As GaAs lens-shaped QD structure, our calculation shows the potential of this AORO approach for the MFIR detection and high-resolution imaging, the potential for room-temperature operation, and the ability for frequency selectivity and spectrum scanning.

AB - A quantum dot (QD) middle-far-infrared (MFIR) detection and imaging approach based on all-optical-readout (AORO) is proposed. Using the intersubband (ISB) optical transition to change the interband (IB) absorption, it converts the ISB MFIR signal into the IB near-infrared signal. It might overcome the problems in the electrical readout infrared detection and imaging, such as dark current, low-temperature operation, low resolution, and vulnerability to the high radiation intensity. Based on the In0.5Ga0.5As GaAs lens-shaped QD structure, our calculation shows the potential of this AORO approach for the MFIR detection and high-resolution imaging, the potential for room-temperature operation, and the ability for frequency selectivity and spectrum scanning.

KW - Infrared detectors

KW - infrared imaging

KW - optical modulation

KW - quantum dots

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DO - 10.1109/JQE.2010.2080260

M3 - Article

AN - SCOPUS:79951985850

SN - 0018-9197

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JO - IEEE Journal of Quantum Electronics

JF - IEEE Journal of Quantum Electronics

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M1 - 5716914

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Quantum dots-based all-optical-readout middle-far-infrared imaging

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