Z-scan measurement of the nonlinear response of new materials by using a high-repetition-rate femtosecond laser

José Antonio Nóvoa López; David Novoa; Humberto Michinel; Alicia V. Carpentier; José Ramón Salgueiro; María Martínez Valado; Pedro Chamorro; Pablo Martin

doi:10.1117/12.892178

26 July 2011 Z-scan measurement of the nonlinear response of new materials by using a high-repetition-rate femtosecond laser

José Antonio Nóvoa López, David Novoa, Humberto Michinel, Alicia V. Carpentier, José Ramón Salgueiro, María Martínez Valado, Pedro Chamorro, Pablo Martin

Author Affiliations +

Proceedings Volume 8001, International Conference on Applications of Optics and Photonics; 80011D (2011) https://doi.org/10.1117/12.892178
Event: International Conference on Applications of Optics and Photonics, 2011, Braga, Portugal

Abstract

Nowadays, it has become an essential task to characterize the nonlinear optical response of new materials, in order to identify suitable candidates for ultrafast processing in all-optical devices. One of the most widely-used techniques for this purpose is the Z-scan, which consists on measuring the nonlinear refractive and absorptive responses of a material by scanning the sample along the optical path of a convergent Gaussian beam. We will analyze the nonlinear response of carbon disulfide and new organic composites. In our setup, using a high-repetition rate femtosecond laser, we have included an optical chopper for managing thermal effects in order to characterize electronic nonlinearities.

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José Antonio Nóvoa López, David Novoa, Humberto Michinel, Alicia V. Carpentier, José Ramón Salgueiro, María Martínez Valado, Pedro Chamorro, and Pablo Martin "Z-scan measurement of the nonlinear response of new materials by using a high-repetition-rate femtosecond laser", Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 80011D (26 July 2011); https://doi.org/10.1117/12.892178

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