Ellipsa: a new technique for two-photon spectroscopy

We present a new method of measuring |χ 3 1221|; 2 in fluids, where Im(χ (3) 1221) is the linear-circular difference of the two-photon absorptivity. The method exploits an alteration of polarization that occurs when elliptical light propagates in a nonlinear medium. In sodium vapor a signal of 6 W i...

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Bibliographic Details
Published in:Chemical physics letters 1978-11, Vol.59 (1), p.100-104
Main Authors: Anderson, R.J.M., Stachelek, Thomas M., McClain, W.M.
Format: Article
Language:English
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Summary:We present a new method of measuring |χ 3 1221|; 2 in fluids, where Im(χ (3) 1221) is the linear-circular difference of the two-photon absorptivity. The method exploits an alteration of polarization that occurs when elliptical light propagates in a nonlinear medium. In sodium vapor a signal of 6 W is seen when incident power is 2 kW.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(78)85624-3