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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47103

Title: Nonlinear optical properties of lanthanum-modified lead zirconate titanate investigated by the femtosecond Z-scan technique
Authors: Tsong-Ru Tsai
Chih-Hsiung Yu
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2011-12
Issue Date: 2018-07-02T03:40:51Z
Publisher: Applied Physics Letters
Abstract: ABSTRACT: We used a closed-aperture Z-scan technique to study the nonlinear optical refractive index of lanthanum-modified lead zirconate titanate (PLZT) (9/65/35) ceramics. Our laser light source was a mode-locked titanium-sapphire laser, the output pulse width was approximately 100 femtoseconds at a wavelength of 790 nm, and the repetition rate was 10 kHz. We found that PLZT had a large, positive nonlinear optical refractive index, n2 = +(3.1 ± 0.6) × 10−8 esu, and its third-order susceptibility was calculated to be χ(3) = (9 ± 1.8) × 10−9 esu. When an electric field (E) was applied to the PLZT, n2 increased along in direct proportion to E2. We speculate that the increase in n2 was caused by the more ordered structural arrangement of the PLZT imposed by the applied electric field. The results show that PLZT has potential applications in fast, electric-field-controlled nonlinear optical elements.
Relation: 99(24)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47103
Appears in Collections:[光電科學研究所] 期刊論文

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