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Science 26 November 1993:
Vol. 262. no. 5138, pp. 1386 - 1390
DOI: 10.1126/science.262.5138.1386
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Articles

Ultrafast Optical Kerr Effect in Liquids and Solids

Roberto Righini 1

1 Department of Chemistry and European Laboratory for Non-Linear Spectroscopy, University of Florence, 50125 Florence, Italy

In the optical Kerr effect, the electric field of light incident on a transparent sample induces an anisotropic refractive index, which is measured by its effect on the passage of a second light beam. The advent of lasers powerful enough to generate a measurable effect, and which can be pulsed on femtosecond time scales, has made the optical Kerr effect into a practical technology for investigating the molecular structure and interactions of condensed systems such as pure liquids, liquid solutions, and plastic crystals.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)