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Hein J, Helbig M, Rentsch S. Measurements of a nonlinear refractive index with a single laser pulse. Appl Opt. 1997;36(6):1173-6doi: 10.1364/ao.36.001173.
Hein, J., Helbig, M., & Rentsch, S. (1997). Measurements of a nonlinear refractive index with a single laser pulse. Applied optics, 36(6), 1173-6. https://doi.org/10.1364/ao.36.001173
Hein, J, et al. "Measurements of a nonlinear refractive index with a single laser pulse." Applied optics vol. 36,6 (1997): 1173-6. doi: https://doi.org/10.1364/ao.36.001173
Hein J, Helbig M, Rentsch S. Measurements of a nonlinear refractive index with a single laser pulse. Appl Opt. 1997 Feb 20;36(6):1173-6. doi: 10.1364/ao.36.001173. PMID: 18250786.
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Appl Opt. 1997 Feb 20;36(6):1173-6. doi: 10.1364/ao.36.001173.

Measurements of a nonlinear refractive index with a single laser pulse.

Applied optics

J Hein, M Helbig, S Rentsch

PMID: 18250786 DOI: 10.1364/ao.36.001173

Abstract

We demonstrate a theoretical model and the experimental proof of a new method for n(2) measurements using single pulses. The advantage of the method is fast measurement, a simple setup, and independence from small nonlinear absorptions and thermal effects. We report on first n(2) measurements with the new technique on carbon disulfide, toluene, and a polymer dissolved in toluene to demonstrate the measurement of positive and negative third-order nonlinearities. We achieved a sensitivity of greater than lambda/200 phase-front distortion using picosecond Nd:YLF laser pulses. The given theory shows that attainment of higher sensitivities is possible.

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