Secondly, a study of InAs/AlSb mid-IR QC structures is performed. By applying the method of the intersubband magneto-spectroscopy, we directly measured the quantum efficiency of intersubband processes in a model two-level system, and then obtain electron lifetimes of the upper-state of the radiative transition.Also, indium solder, a low temperature solder, is used to insure the integrity of the sample. The top contact is then wire bonded from a gold plated alumina pad to the QCL using a Kulick aamp; Softa 4523 manual wire bonder. This design is ouranbsp;...
|Title||:||Quantum Cascade Lasers in High Magnetic Fields|
|Publisher||:||ProQuest - 2008|