19 July 1999 High-intensity effects in liquid crystals driven by 532-nm nanosecond laser pulses
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Proceedings Volume 3749, 18th Congress of the International Commission for Optics; (1999) https://doi.org/10.1117/12.354923
Event: ICO XVIII 18th Congress of the International Commission for Optics, 1999, San Francisco, CA, United States
Abstract
We observed unusual high-contrast, far-field, elliptical diffraction rings in a green, linear polarized nanosecond laser beam, a phenomenon strongly dependent on the orientation of the nematic liquid crystal molecules, under the experimental conditions excluding ordinary orientational or thermal self-focusing. The threshold of the nonlinearity is modified either by changing the laser repetition rate (cumulative nature) or by adding a two-photon absorbing chromophore.
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Svetlana G. Lukishova, Svetlana G. Lukishova, } "High-intensity effects in liquid crystals driven by 532-nm nanosecond laser pulses", Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); doi: 10.1117/12.354923; https://doi.org/10.1117/12.354923
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