9 July 2007 Reflection and absorption dynamics in periodic nanostructures based on ZnS/ZnSe
Author Affiliations +
Abstract
ZnS/ZnSe heterostructures under condition of ZnSe interband excitation by a 150 fs laser pulse exhibit strong narrow-band modification of absorption and wide-band modification of reflection. Mean decay time for nonlinear reflection in heterostructures ranges from 2 to 3 ps whereas in bare ZnSe monolayer it exceeds 5 ps. Possible physical processes responsible for nonlinear refraction in the transparency region include interplay of absorption driven nonlinear refraction via Kramers-Kronig relations and intrinsic dielectric properties of dense electron-hole plasma. For nonlinear absorption at ZnSe band edge, interplay of plasma screening effects and states filling effects are relevant.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. A. Tikhomirov, S. A. Tikhomirov, M. V. Ermolenko, M. V. Ermolenko, V. V. Stankevich, V. V. Stankevich, O. V. Buganov, O. V. Buganov, S. V. Gaponenko, S. V. Gaponenko, P. I. Kuznetsov, P. I. Kuznetsov, G. G. Yakushcheva, G. G. Yakushcheva, } "Reflection and absorption dynamics in periodic nanostructures based on ZnS/ZnSe", Proc. SPIE 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics, 672708 (9 July 2007); doi: 10.1117/12.752230; https://doi.org/10.1117/12.752230
PROCEEDINGS
9 PAGES


SHARE
Back to Top