Abstract—The properties of the aberrational pattern resulting from the self-action of the light radiation mode TEM01 in liquid-crystal systems are studied. It is found that the interference of light rays corresponding to two peaks of intensity and nonlinear phase shift leads to the formation of a system of fringes in the Fraunhofer region; their angular period is controlled by the distance between peaks. These fringes fill the entire aberrational pattern (concentric ring pattern) or only its part, depending on the type of the profile of the light-induced phase shift. The possibilities of using the properties of the aberrational pattern in the TEM01 mode for studying the light-induced reorientation of the nematic liquid crystal director are shown.
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This study was supported by the Russian Foundation for Basic Research, project nos. 18-02-00986-a and 19-03-00337-a. A.Yu. Bobrovsky, N.I. Boiko, and V.P. Shibaev acknowledge the support of the Russian Science Foundation, project no. 19-13-00029 (Synthesis and characterization of polymers).
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Translated by A. Kazantsev
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Budagovsky, I.A., Zolot’ko, A.S., Kuznetsov, A.A. et al. ABERRATIONAL PATTERN DURING THE SELF-ACTION OF THE ТЕМ01 MODE OF LIGHT RADIATION IN NEMATIC LIQUID CRYSTALS. Bull. Lebedev Phys. Inst. 47, 149–155 (2020). https://doi.org/10.3103/S1068335620050024
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DOI: https://doi.org/10.3103/S1068335620050024