Quantum-cascade lasers (QCLs) are semiconductor lasers that emit in the mid- to far- infrared portion of the electromagnetic spectrum and were first demonstrated by Jérôme Faist, Federico Capasso, Deborah Sivco, Carlo Sirtori, Albert Hutchinson, and …

Quantum cascade lasers (QCLs) are a type of semiconductor laser which utilizes epitaxially grown quantum wells that contain electrons in lasing states. They were first demonstrated in 1994 by the Bell Labs Team of Jérôme Faist, Federico Capasso, Deborah, Sivco, Carlo Sirtori, Albert Hutchinson, and Alfred Cho [1].

ICL allow emission in at shorter wavelengths than traditional QCL which are particularly interesting for hydrocarbon detection. The initially offered chip covers the range 3.2-3.6 um (2820-3070 cm-1) which contains interesting absorption lines for CH4, C2H6, HCl, CH2O (formaldehyde) in particular.

QCLs are available in a range of packaging options depending upon your application and set-up. Packages provide appropriate electrical, optical, mechanical and thermal interfaces for your particular device. Chip on Carrier. Laser chips from Alpes …

Quantum cascade lasers are semiconductor lasers that offer peak emission in the mid-IR range (4 μm to 10 μm). These devices are an excellent light source for mid-IR applications, such as molecular gas analysis and absorption spectroscopy.

QCLs are electrically pumped unipolar semiconductor lasers. Their operation mechanism differs fundamentally from standard semiconductor diodes as they exploit intersubband transitions in cascaded quantum well structures to generate terahertz radiation between 2 to 5 THz or 150 to 60 μm in wavelength.

2025年2月24日 · Quantum Cascade Laser (QCL) chips are semiconductor-based laser devices that emit mid-infrared and terahertz wavelengths, enabling high-precision sensing, spectroscopy, and defense applications. These chips leverage quantum mechanics principles to produce tunable and efficient laser emissions.

2021年9月8日 · QCL激光器根据工作原理分为DFB-QCL、FP-QCL、EC-QCL（模块式封装），除了CoC（Chip on Carrier）、LLH、HHL、TO3、BTF、T-BTF、EC-QCL封装，可根据用户需要提供QCL芯片（Bare Chips）。

A Quantum Cascade Laser (QCL) is a semiconductor laser that emits highly coherent radiation in the mid- to long-wave infrared region of the spectrum.

2016年7月11日 · The flexibility of QCLs—with center wavelengths that cover less than 4 to greater than 12 μm, their ready adaptability to pulsed or continuous-wave (CW) operation, the availability of broad-gain-bandwidth chips tuning over a range of more than 500 cm-1, and their ability to power-scale to multiple watts—makes them ideally suited to many ...