Journal
ADVANCED MATERIALS
Volume 25, Issue 6, Pages 833-837Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201203692
Keywords
nanowires; tunable laser; semiconductor; absorption-emission-absorption
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Funding
- National Natural Science Foundation of China [61177062]
- National Basic Research Program (973) of China [2013CB328703]
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Wavelength tunability of lasers is one of the most important parameters for achieving practical applications such as optical communication, environmental monitoring, and spectroscopy analysis. A wide-wavelength tunable laser is demonstrated on a single non-doped CdSe nanowire (NW) without changing pumping intensity and position, but by simply gradually cutting the NW shorter instead. The corresponding mechanism for the large wavelength shifts is determined as the absorption-emission-absorption (AEA) process in polar CdSe NWs.
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