期刊
OPTICS LETTERS
卷 33, 期 22, 页码 2626-2628出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.33.002626
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- Air Force Office of Scientific Research (AFOSR) [FA95500410200]
- National Science Foundation (NSF) [ECS 0524533]
- U.S. Army Research Laboratory [W911NF0420012]
We calculate the spectrum of three-photon absorption (3PA) in zinc blende semiconductors using Kane's four-band model. We apply this to ZnSe and measure the 3PA spectrum using ferasecond pulses, obtaining excellent agreement. The spectrum shows the apparent onset of 3PA from the split-off band and also shows quantum interference between the several possible evolution pathways when exciting carriers from valence to conduction band. (C) 2008 Optical Society of America
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