2 papers
cond-mat.mtrl-sci2005
Three photon absorption in ZnO and ZnS crystals
Jun He, Yingli Qu, Heping Li +2
We report a systematic investigation of both three-photon absorption (3PA)spectra and wavelength dispersions of Kerr-type nonlinear refraction in wide-gap semiconductors. The Z-sca…
cond-mat.mtrl-sci2005
Observation of Interband Two-Photon Absorption Saturation in CdS Nanocrystals
Jun He, Jun Mi, Heping Li +1
We report the observation of interband two-photon absorption (TPA) saturation in cadmium sulfide nanocrystals (CdS NCs) under intense femtosecond laser excitation with 1.6-eV photo…