Journal
APPLIED PHYSICS LETTERS
Volume 91, Issue 25, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2825284
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Quantum cascade lasers emitting at wavelengths as short as 2.75 mu m at 80 K and 2.97 mu m near room temperature are demonstrated. Despite the small band gap of InAs, the laser performances are not affected by interband absorption. No effect of the L valley in InAs on quantum cascade laser performances is observed at 80 K in these devices. (c) 2007 American Institute of Physics.
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