研究目的
Investigating the output characteristics of a mid-infrared quantum cascade laser by considering the effect of subband electron temperature.
研究成果
The optimized model, which considers the subband electron temperature and employs the shooting method, provides faster and more accurate simulation results for QCLs. This approach facilitates the development of self-designed QCL applications by simultaneously optimizing multiple parameters.
研究不足
The model's computational efficiency and accuracy are dependent on the number of particles and iterations in the PSO algorithm. The simulation assumes all dopants are ionized and does not account for all possible scattering mechanisms.
1：Experimental Design and Method Selection:
The simulation is based on the 1 1/2-period model developed by K. Donovan et al., using the shooting method to solve the Schr?dinger equation and particle swarm optimization (PSO) algorithm to investigate the subband electron temperature.
2：Sample Selection and Data Sources:
A standard 35-stage In
3：52Al48As/In53Ga47As type-I four-level Fabry-Perot QCL based on the two-phonon resonant design with a laser cavity length of 358 mm is simulated. List of Experimental Equipment and Materials:
The simulation model includes both spontaneous emission and stimulated emission, with the electron distribution of each subband described by a Fermi-Dirac function.
4：Experimental Procedures and Operational Workflow:
The algorithm involves solving the Schr?dinger equation to obtain subband wave functions and energies, calculating the potential due to the resulting charge distribution, and iterating until convergence. The PSO algorithm is used to optimize the electron temperature of each subband.
5：Data Analysis Methods:
The energy balance method is applied to determine the effective subband electron temperature, and the results are compared with experimental data.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
