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Peccianti, M.1
Assanto, G.2
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0002440190
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The orientational optical nonlinearity of liquid crystals
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N. V. Tabiryan, A. V. Sukhov, and B. Ya. Zel'dovich, "The orientational optical nonlinearity of liquid crystals," Mol. Cryst. Liq. Cryst. 136, 1-140 (1986).
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Tabiryan, N.V.1
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54
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note
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x). Since this model can be solved in a closed formed analytically, we find it to be useful for studying and understanding MI. One should compare this situation with the approximation of parabolic waveguides in optical fibers, which serve as a good approximation of true graded-index waveguides, although of course true parabolic waveguides do not exist in reality.
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note
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The rotating diffuser also broadens the linewidth of the laser light, because the rotation causes a Doppler shift. In our experiments, however, the speckles introduce a new phase every microsecond, and therefore the Doppler shift is of the order of megahertz, which is negligible compared with the ∼1 GHz laser linewidth that we use.
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