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VOLUME 61 (1995) | ISSUE 7 | PAGE 537
Observation of self-diffraction and refractive-index gratings induced in a glass by mutually coherent optical fields Eω M and E2ω
A self-diffraction and the formation of refractive-index gratings have been observed experimentally in a glass subjected to mutually coherent optical fields at the fundamental frequency and second harmonic of a laser. The properties of these gratings have been studied as a function of the intensity and polarization of the fields and the phase shift between them. These properties can be explained satisfactorily by a model of a coherent photovoltaic effect. © 1995 American Institute of Physics.