Giant nonlinear phase shift at exciton resonance in ZnSe
- 13 January 1992
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 60 (2), 192-194
- https://doi.org/10.1063/1.106960
Abstract
We study the optical nonlinearity just at the exciton resonance in ZnSe at 8 K. A sample with thickness of 2.4 μm is grown by molecular‐beam epitaxy on a GaAs substrate. Using reflection‐type polarization spectroscopy with weak picosecond optical pulses, we observe nonlinear phase shift, being free from incoherent processes caused by the accumulation of excitons. A huge nonlinear phase shift, 0.15 deg cm2/kW, whose effective χ(3) is over 10−2 esu, with a response time shorter than 20 ps is obtained.Keywords
This publication has 10 references indexed in Scilit:
- Biexcitonic contribution to the degenerate-four-wave-mixing signal from a GaAs/As quantum wellPhysical Review B, 1991
- Mesoscopic enhancement of third-order-optical susceptibility due to excitons in semiconductor microcrystallitesSolid State Communications, 1990
- Effect of biaxial strain on exciton luminescence of heteroepitaxial ZnSe layersPhysical Review B, 1988
- Pulsed Propagation of Polariton LuminescencePhysical Review Letters, 1988
- Rapid radiative decay and enhanced optical nonlinearity of excitons in a quantum wellPhysical Review B, 1988
- Excitonic molecules in ZnSe quantum wellsPhysical Review B, 1988
- Room-temperature excitonic optical nonlinearities of molecular beam epitaxially grown ZnSe thin filmsApplied Physics Letters, 1988
- Optical nonlinearities in the exciton resonant region studied by polarization spectroscopyJournal of Luminescence, 1987
- Theory of transient excitonic optical nonlinearities in semiconductor quantum-well structuresPhysical Review B, 1985
- Excitonic Polariton Dispersion in ZnSe Determined by the Resonant Raman Scattering under Two-Photon Excitation of Excitonic MoleculesJournal of the Physics Society Japan, 1981