Quantum cascade lasers are unipolar semiconductor lasers covering a wide range of the infrared and terahertz spectrum. Lasing action is achieved by using optical intersubband …
We review the most recent technological and application advances of quantum cascade lasers, underlining the present milestones and future directions from the Mid-infrared to the …
Using the recently proposed shallow-well design, we demonstrate InP based quantum cascade lasers (QCLs) emitting around 4.9 μ m with 27% and 21% wall plug efficiencies in …
The quantum cascade laser (QCL) is an important laser source in the mid-infrared and terahertz frequency range. The past twenty years have witnessed its tremendous …
The interband cascade laser differs from any other class of semiconductor laser, conventional or cascaded, in that most of the carriers producing population inversion are …
S Mittal, K Yeh, LS Leslie, S Kenkel… - Proceedings of the …, 2018 - National Acad Sciences
Histopathology based on spatial patterns of epithelial cells is the gold standard for clinical diagnoses and research in carcinomas; although known to be important, the tissue …
Surface plasmon polaritons and their localized counterparts, surface plasmons, are widely used at visible and near-infrared (near-IR) frequencies to confine, enhance, and manipulate …
A compact, high power, room temperature continuous wave terahertz source emitting in a wide frequency range (ν~ 1–5 THz) is of great importance to terahertz system development …
N Bandyopadhyay, Y Bai, S Tsao, S Nida… - Applied Physics …, 2012 - pubs.aip.org
We demonstrate quantum cascade lasers emitting at wavelengths of 3–3.2 μm in the InP- based material system. The laser core consists of GaInAs/AlInAs using strain balancing …