10.7μm InGaAs/InAlAs Quantum Cascade Detector
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Abstract
A 10.7 μm quantum cascade detector based on lattice matched InGaAs/InAlAs/InP is demonstrated and characterized in terms of responsivity, resistivity and detectivity. The device operates in the 8–14 μm atmospheric window up to 140 K and shows a peak reponsivity of 14.4 mA/W at 78 K. With a resistance−area product value of 159 Ωcm2, the Johnson noise limited detectivity DJ∗ is 2.8×109 Jones (cm⋅Hz1/2W−1) at 78 K.
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KONG Ning, LIU Jun-Qi, LI Lu, LIU Feng-Qi, WANG Li-Jun, WANG Zhan-Guo, LU Wei. 10.7μm InGaAs/InAlAs Quantum Cascade Detector[J]. Chin. Phys. Lett., 2010, 27(12): 128503. DOI: 10.1088/0256-307X/27/12/128503
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KONG Ning, LIU Jun-Qi, LI Lu, LIU Feng-Qi, WANG Li-Jun, WANG Zhan-Guo, LU Wei. 10.7μm InGaAs/InAlAs Quantum Cascade Detector[J]. Chin. Phys. Lett., 2010, 27(12): 128503. DOI: 10.1088/0256-307X/27/12/128503
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KONG Ning, LIU Jun-Qi, LI Lu, LIU Feng-Qi, WANG Li-Jun, WANG Zhan-Guo, LU Wei. 10.7μm InGaAs/InAlAs Quantum Cascade Detector[J]. Chin. Phys. Lett., 2010, 27(12): 128503. DOI: 10.1088/0256-307X/27/12/128503
|
KONG Ning, LIU Jun-Qi, LI Lu, LIU Feng-Qi, WANG Li-Jun, WANG Zhan-Guo, LU Wei. 10.7μm InGaAs/InAlAs Quantum Cascade Detector[J]. Chin. Phys. Lett., 2010, 27(12): 128503. DOI: 10.1088/0256-307X/27/12/128503
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