The Quantum Cascade Laser (QCL) is a type of semiconductor laser that operates in the mid-infrared region of the electromagnetic spectrum. It is a type of laser diode that is based on intersubband transitions in quantum wells, which are layers of semiconductor material that are only a few nanometers thick. QCLs are used in a variety of applications, including spectroscopy, medical imaging, and sensing. QCLs are becoming increasingly popular due to their high power output, low cost, and small size. They are also more efficient than other types of lasers, making them attractive for applications that require high power output. Additionally, QCLs can be tuned to different wavelengths, allowing them to be used in a variety of applications. Some companies in the Quantum Cascade Laser market include Coherent, Inc., Nufern, and TOPTICA Photonics. Show Less Read more
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