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Angular Dependences of Third Harmonic Generation from Microdroplets

J. Kasparian·B. Krämer·J. P. Dewitz·S. Vajda·P. Rairoux·B. Vezin·V. Boutou·T. Leisner·W. Hübner·J. P. Wolf·L. Wöste·K. H. Bennemann
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Abstract

We present experimental and theoretical results for the angular dependence of third harmonic generation (THG) of water droplets in the micrometer range (size parameter $62<ka<248$). The THG signal in $p$- and $s$-polarization obtained with ultrashort laser pulses is compared with a recently developed nonlinear extension of classical Mie theory including multipoles of order $l\leq250$. Both theory and experiment yield over a wide range of size parameters remarkably stable intensity maxima close to the forward and backward direction at ``magic angles''. In contrast to linear Mie scattering, both are of comparable intensity.

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J. Kasparian, B. Krämer, J. P. Dewitz, S. Vajda, P. Rairoux, B. Vezin, V. Boutou, T. Leisner, W. Hübner, J. P. Wolf, L. Wöste, K. H. Bennemann. 1996-10-01. Angular Dependences of Third Harmonic Generation from Microdroplets. https://doi.org/10.1103/physrevlett.78.2952

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