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Specular nonlinear anisotropic polarization effect along fourfold crystal symmetry axes

By A.R. Bungay, S.V. Popov, N.I. Zheludev and Y.P. Svirko

Abstract

We present what is to our knowledge the first experimental observation of the specular nonlinear anisotropic polarization effect of a pump-induced polarization-plane rotation for normal-incidence reflection from the (001) surface of a cubic crystal. In GaAs, azimuth rotation of the order of 9 × 10^-6 rad is seen for a pump intensity of 75 MW/cm^2 at 750 nm, from which the anisotropic component of the cubic nonlinearity |Re(chi.xxxx - 2chi.xxyy - chi.xyyx)| = 5 × 10^-9 esu is found.<br/><br/

Topics: QC, TK
Year: 1995
OAI identifier: oai:eprints.soton.ac.uk:78204
Provided by: e-Prints Soton

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