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- W2897612552 abstract "Nonlinear optical propagation effects leading to pronunced changes in the transverse profiles of laser beams are of current interests in optical physics. Far-field interference rings, for example, have been observed in a number of systems, such as sodim vapor and semiconductors. In particular, as many as fifty to a hundred rings have been observed in nematic liquid crystal films because of the large optical nonlinearities of this medium. This phenomenon can be understood as the spatial analog of the well-known self-phase modulation of light as the laser beam traverses the sample. It is the phase shift impressed upon the laser beam profile by the nonlinear index of refraction that produces the rings.Nonlinear optical propagation effects leading to pronunced changes in the transverse profiles of laser beams are of current interests in optical physics. Far-field interference rings, for example, have been observed in a number of systems, such as sodim vapor and semiconductors. In particular, as many as fifty to a hundred rings have been observed in nematic liquid crystal films because of the large optical nonlinearities of this medium. This phenomenon can be understood as the spatial analog of the well-known self-phase modulation of light as the laser beam traverses the sample. It is the phase shift impressed upon the laser beam profile by the nonlinear index of refraction that produces the rings." @default.
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- W2897612552 date "1984-01-01" @default.
- W2897612552 modified "2023-09-24" @default.
- W2897612552 title "DC-field enhanced optical propagation effects in a nematic liquid crystal film" @default.
- W2897612552 doi "https://doi.org/10.2351/1.5057653" @default.
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