QCL IR microscopy is a new and exciting field. We explain the basics of quantum cascade lasers and go into detail why infrared laser imaging is the next step in infrared spectroscopy. What is a QCL or quantum cascade laser ? In short, it is a tunable Mid-IR laser - …

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In a QCL, these quantum effects are taken to an extreme by utilizing tens or even hundreds of quantum wells to decouple the emission wavelength from the bandgap energy entirely.

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Dec 4, 2024 · In a Quantum Cascade Laser (QCL) the photon emission is obtained via quantum jumps among electronic states created by quantum confinement in ultrathin alternating semiconductor layers...

LongWave Photonics provides terahertz Quantum Cascade Laser (QCL) systems for imaging, spectroscopy and heterodyne receivers. Milliwatt average power levels are available in a range of frequencies from 1.9 to 5 THz. Our compact systems are turnkey, operate cryogen free and require no optical alignment.

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

3GPP TS 38.214 中定义了不同天线端口间的准共址关系（QCL: Quasi-Colocation），那么什么是QCL？ QCL的类型包括哪些？ 哪些天线端口间可以定义QCL？ UE如何获知不同天线端口间的QCL？ 本文将围绕上述几个问题来描述QCL。 3GPP对于QCL的定义如下：

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