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Low-threshold quantum-cascade lasers at 3.5 THz (λ = 85 μm)

✍ Scribed by Köhler, Rüdeger; Tredicucci, Alessandro; Beltram, Fabio; Beere, Harvey E.; Linfield, Edmund H.; Davies, A. Giles; Ritchie, David A.

Book ID
115425925
Publisher
Optical Society of America
Year
2003
Tongue
English
Weight
591 KB
Volume
28
Category
Article
ISSN
0146-9592

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✍ R Colombelli; F Capasso; A Straub; C Gmachl; M.I Blakey; A.M Sergent; D.L Sivco; 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 198 KB

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