Abstract.
A simple experimental technique is presented capable of separating the contribution of purely optical Kerr effects from that of thermo-optical effects in the nonlinear response of materials under high-repetition-rate laser irradiation. The technique has been realized by combining the single-beam Z-scan method with the single-beam thermal lens measurement method. We demonstrate this technique by analysing the nonlinear response at 770 nm of CS2 which exhibits cumulative thermal effects when irradiated by very intense femtosecond laser pulses at a 76-MHz repetition rate.
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Received: 3 November 1998 / Revised version: 4 January 1999 / Published online: 2 June 1999
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Falconieri, M., Salvetti, G. Simultaneous measurement of pure-optical and thermo-optical nonlinearities induced by high-repetition-rate, femtosecond laser pulses: application to CS2. Appl Phys B 69, 133–136 (1999). https://doi.org/10.1007/s003400050785
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DOI: https://doi.org/10.1007/s003400050785