Three-photon absorption spectra of zinc blende semiconductors: theory and experiment.
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.
Cirloganu
Claudiu M
CM
CREOL and FPCE, The College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, USA.
Olszak
Peter D
PD
Padilha
Lazaro A
LA
Webster
Scott
S
Hagan
David J
DJ
Van Stryland
Eric W
EW