News and Views
Nature Photonics 3, 11 - 12 (2009)
doi:10.1038/nphoton.2008.260
Semiconductor Lasers: Lasing high in k-space
Jérôme Faist1
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Jérôme Faist is at the Institute for Quantum Electronics, ETH Zürich, HPT H 7, Wolfgang-Pauli-Str. 16, CH-8093 Zürich, Switzerland.
e-mail: jerome.faist@phys.ethz.ch
Abstract
The demonstration that lasing at high-k wavevectors is possible in a quantum cascade laser may open new avenues for the design of intersub-band devices.
