Structures responsible for quasisynchronism in second-harmonic generation in BaTiO3:Fe |
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| Authors: | É. V. Bursian V. G. Zalesskii |
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| Affiliation: | (1) Russian State Pedagogical University, 191186 St. Petersburg, Russia |
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| Abstract: | Second harmonic generation (SHG) of light in iron-doped BaTiO3 crystals occurs primarily at an angle of about 7° to incident λ=1.06 μm radiation. It is shown that the quasisynchronism is accounted for by a 90° domain structure with a spatial wave vector q∥[011] and a spatial period of about 3 μm. This result may serve as a basis for interpretation of the anomalous SHG enhancement near the phase transition. Fiz. Tverd. Tela (St. Petersburg) 41, 1076–1079 (June 1999) |
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