期刊
NATURE PHOTONICS
卷 1, 期 9, 页码 517-525出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nphoton.2007.166
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Six years after their birth, terahertz quantum-cascade lasers can now deliver milliwatts or more of continuous-wave coherent radiation throughout the terahertz range -the spectral regime between millimetre and infrared wavelengths, which has long resisted development. This paper reviews the state-of-the-art and future prospects for these lasers, including efforts to increase their operating temperatures, deliver higher output powers and emit longer wavelengths.
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