TY - GEN
T1 - Numerical Optimization of Quantum Cascade Detector Heterostructures
AU - Popp, Johannes
AU - Haider, Michael
AU - Franckie, Martin
AU - Faist, Jerome
AU - Jirauschek, Christian
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9
Y1 - 2020/9
N2 - We demonstrate a Bayesian optimization framework for quantum cascade (QC) devices in the mid-infrared (mid-IR) and terahertz (THz) regime. The optimization algorithm is based on Gaussian process regression (GPR) and the devices are evaluated using a perturbed rate equation approach based on scattering rates calculated self-consistently by Fermi's golden rule or alternatively extracted from an Ensemble Monte Carlo (EMC) simulation tool. Here, we focus on the optimization of a mid-IR quantum cascade detector (QCD) at a wavelength of 4.7\mu \mathrm{m} with respect to the specific detectivity as a measure for the signal to noise ratio. At a temperature of 220 K we obtain an improvement in specific detectivity by a factor \sim 2.6 to a value of 2.6\times 10{8} Jones.
AB - We demonstrate a Bayesian optimization framework for quantum cascade (QC) devices in the mid-infrared (mid-IR) and terahertz (THz) regime. The optimization algorithm is based on Gaussian process regression (GPR) and the devices are evaluated using a perturbed rate equation approach based on scattering rates calculated self-consistently by Fermi's golden rule or alternatively extracted from an Ensemble Monte Carlo (EMC) simulation tool. Here, we focus on the optimization of a mid-IR quantum cascade detector (QCD) at a wavelength of 4.7\mu \mathrm{m} with respect to the specific detectivity as a measure for the signal to noise ratio. At a temperature of 220 K we obtain an improvement in specific detectivity by a factor \sim 2.6 to a value of 2.6\times 10{8} Jones.
UR - http://www.scopus.com/inward/record.url?scp=85093930661&partnerID=8YFLogxK
U2 - 10.1109/NUSOD49422.2020.9217784
DO - 10.1109/NUSOD49422.2020.9217784
M3 - Conference contribution
AN - SCOPUS:85093930661
T3 - Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD
SP - 23
EP - 24
BT - 2020 International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2020
PB - IEEE Computer Society
T2 - 2020 International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2020
Y2 - 14 September 2020 through 18 September 2020
ER -