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Second-harmonic generation in ferroelectric liquid crystals

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Abstract

We present phase-matched, second-harmonic generation in the ferroelectric liquid-crystal material SCE9 (manufactured by BDH Ltd.). From the analysis of these results, the absolute values of all nonzero components of the d tensor have been obtained. A direct comparison between this material and the most efficient ferroelectric liquid-crystal material reported so far (ZLI3654) is made, which shows that SCE9 is four times more efficient at frequency doubling. At the phase-matching angle (θ = 19.1°) a deff of 0.010(1) × 10−12 m/V is measured. The results are consistent with near uniaxiality, the extent of which has been determined from experimental data (nynx = 0.0003, nznx= 0.17).

© 1990 Optical Society of America

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