The evolution of the domain structure in LiNbO 3 with polarization switching in an electric field is investigated experimentally. Special attention is given to the formation processes of a regular domain applicable to nonlinear optical devices. A new method based on the spontaneous backswitching effect is proposed for creating a regular structure with a period of 2.6 µm in LiNbO 3 with a thickness of 0.5 mm.
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Shur et al. (1999) studied this question.
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