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High-power room temperature emission quantum cascade lasers at λ=9 μm

✍ Scribed by Faugeras, C.; Forget, S.; Boer-Duchemin, E.; Page, H.; Bengloan, J.-Y.; Parillaud, O.; Calligaro, M.; Sirtori, C.; Giovannini, M.; Faist, J.

Book ID
117883070
Publisher
IEEE
Year
2005
Tongue
English
Weight
671 KB
Volume
41
Category
Article
ISSN
0018-9197

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Quantum cascade lasers operating at ¿ 20 m wavelength are reported. Pulsed operation was obtained up to 140 K with a peak power of few milliwatts at cryogenic temperatures. Laser action originates from interminiband transitions in "chirped" superlattice active regions. The waveguides are based on su