'Quantum cascade lasers: widely tailorable light sources for the mid- to far-infrared and their applications'

摘要

The unipolar nature of quantum cascade lasers (QCLs) combined with the capabilities of electronic and photonic bandstructure engineering leads to unprecedented design flexibility and functionality for a variety of applications. The author first reviews the state-of-the art performance across the mid-IR and far-IR spectrum and advances in commercial applications. Recent exciting developments on new coherent light sources with an active nonlinear medium that combines internal pumping with a giant resonant optical nonlinearity to achieve high conversion efficiency (second harmonic generators, Raman lasers, etc) will be presented. The talk concludes with a discussion of terahertz, ultrabroadband, and "holey"/photonic crystal QCLs along with potential applications