Three-photon absorption spectra of zinc blende semiconductors: theory and experiment.
نویسندگان
چکیده
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 femtosecond 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.
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عنوان ژورنال:
- Optics letters
دوره 33 22 شماره
صفحات -
تاریخ انتشار 2008