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1. Semiconductor quantum wells
The basic building block of the QCL is the semiconductor quantum well.
A semiconductor quantum well is an artificial material consisting of a semiconductor with a low bandgap energy, sandwiched between two semiconductor layers with the same lattice parameter and a higher bandgap energy . Semiconductor quantum wells are produced by molecular jet epitaxy or organometallic vapor phase epitaxy. Both techniques enable semiconductor layer thicknesses to be controlled with sub-monolayer...
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Semiconductor quantum wells
Operating principle of quantum cascade lasers
Bibliography
Software tools
Nextnano: software for simulating the I-V characteristics and gain of quantum cascade lasers https://www.nextnano.de/
Events
Research work on quantum cascade lasers is regularly presented at several international conferences:
Photonics West (PW): every February in San Francisco, with the exhibition section where all QCL producers gather to present their latest innovations.
International quantum cascade lasers school and workshop (IQCLSW): every two years (2018, 2020, etc.).
Intersubband...
Patents
Single-pole semiconductor laser EP0676839 – 1995-10-11
Quantum laser cascade EP0841731 – 1998-05-13
Device with improved quantum cascade laser EP0877454 – 1998-11-11
Quantum cascade laser with self-mode locking EP1154532 – 2001-11-14
Apparatus for measuring gas concentration using a gas correlation method EP1850112 – 2007-10-31...
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
Mirsense http://mirsense.com/
Alpes Lasers http://www.alpeslasers.ch/
Lytid http://lytid.com/
...
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