2 December 2009 Dual-color mid-infrared quantum cascade photodetector in coupled quantum well structure
Author Affiliations +
Proceedings Volume 7631, Optoelectronic Materials and Devices IV; 76310L (2009) https://doi.org/10.1117/12.851957
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China
In this paper, a novel structure for detection of two different wavelengths in mid-infrared region is proposed. By attaching a capturing well to the active region, a common transportation path for electron excited by two different wavelengths is introduced. Calculated values for responsivity and detectivity in the designed Quantum Cascade Photodetector structure at 120K are: R1 (λ=6.85μ m) =67.5 mA/W, R2 (λ=12.35μ m) =118.5mA/W and D1 (λ=6.85) =6.89×107J, D2 (λ=12.35) =1.2×108J, respectively.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Rostami, A. Rostami, A. Motmaen, A. Motmaen, H. Baghban, H. Baghban, H. Rasooli Saghai, H. Rasooli Saghai, } "Dual-color mid-infrared quantum cascade photodetector in coupled quantum well structure", Proc. SPIE 7631, Optoelectronic Materials and Devices IV, 76310L (2 December 2009); doi: 10.1117/12.851957; https://doi.org/10.1117/12.851957


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