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Study of linear and nonlinear optical properties of distorted Ti–O6 perovskite structure in BaxSr1−xTiO3

✍ Scribed by W.K. Chen; C.M. Cheng; J.Y. Huang; W.F. Hsieh; T.Y. Tseng

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
244 KB
Volume
61
Category
Article
ISSN
0022-3697

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✦ Synopsis

We report the linear and nonlinear optical properties of sol-gel prepared Ba x Sr 1Ϫx TiO 3 (BST) crystalline powders. The results from powder X-ray diffraction, birefringence, and second-order optical nonlinearity measurements indicate that the paraelectric-ferroelectric phase transition of Ba 0.75 Sr 0.25 TiO 3 occurs near room temperature. The second-order optical nonlinearity of the ferroelectric BST is about 7.9 pm/V. The index of refraction, n 2:2; and birefringence, Dn B ϳ 0:05; are also appropriate for practical nonlinear optical applications.

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