TY - GEN
T1 - Monte Carlo Modeling of a Short Wavelength Strain Compensated Quantum Cascade Detector
AU - Popp, Johannes
AU - Haider, Michael
AU - Franckie, Martin
AU - Faist, Jerome
AU - Jirauschek, Christian
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/6
Y1 - 2021/6
N2 - Intersubband (ISB) photodetectors are a suitable choice for the detection of light in the mid-infrared and terahertz regime. They are categorized into two main classes based on their working principle: photoconductive quantum well infrared photodetectors (QWIPs) and photovoltaic quantum cascade detectors (QCDs). Here, we focus on QCDs, which operate at zero bias and thus exhibit superior noise behavior due to the absence of dark current noise [1]. Lattice matched QCDs are based on the material system In 0.53 Ga 0.47 As/In 0.52 Al 0.48 As with a conduction band offset (CBO) of 520meV. The absorption in QCDs is based on the optical transition from the ground level g to the degenerate absorption levels a i in the active well. The detection wavelengths for lattice-matched QCDs are thus limited to values well above 4m. Giorgetta et al. presented a short wavelength QCD at 4m based on the strain compensated material system In 0.61 Ga 0.39 As/In 0.45 Al 0.55 As [2]. For this material system a CBO of 610meV is obtained by using model-solid theory [3] , [4].
AB - Intersubband (ISB) photodetectors are a suitable choice for the detection of light in the mid-infrared and terahertz regime. They are categorized into two main classes based on their working principle: photoconductive quantum well infrared photodetectors (QWIPs) and photovoltaic quantum cascade detectors (QCDs). Here, we focus on QCDs, which operate at zero bias and thus exhibit superior noise behavior due to the absence of dark current noise [1]. Lattice matched QCDs are based on the material system In 0.53 Ga 0.47 As/In 0.52 Al 0.48 As with a conduction band offset (CBO) of 520meV. The absorption in QCDs is based on the optical transition from the ground level g to the degenerate absorption levels a i in the active well. The detection wavelengths for lattice-matched QCDs are thus limited to values well above 4m. Giorgetta et al. presented a short wavelength QCD at 4m based on the strain compensated material system In 0.61 Ga 0.39 As/In 0.45 Al 0.55 As [2]. For this material system a CBO of 610meV is obtained by using model-solid theory [3] , [4].
UR - https://www.scopus.com/pages/publications/85117591004
U2 - 10.1109/CLEO/Europe-EQEC52157.2021.9542111
DO - 10.1109/CLEO/Europe-EQEC52157.2021.9542111
M3 - Conference contribution
AN - SCOPUS:85117591004
T3 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
BT - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
Y2 - 21 June 2021 through 25 June 2021
ER -
