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Optica Publishing Group
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1997),
  • paper QThG18

Dephasing in hyper-Rayleigh scattering from organic materials

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Abstract

Hyper-Rayleigh scattering (HRS) has attracted much attention recently as a method of measuring the first hyperpolarizability of nonlinear optical chromophores.1 HRS involves measurement of radiation incoherently scattered at exactly twice the frequency of the input beam. Many nonlinear optical chromophores fluoresce in the visible spectrum, and multiphoton fluorescence competes with the hyper-Rayleigh response. We have studied this competition by spectrally resolving light scattered near the second harmonic from well- known organic molecules at several fundamental wavelengths.

© 1997 Optical Society of America

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