教師資料查詢 | 類別: 期刊論文 | 教師: 李明憲 LEE, MING-HSIEN (瀏覽個人網頁)

標題:Mechanism of linear and non-linear optical effects in KDP and urea crystals
學年
學期
出版(發表)日期2003/02/01
作品名稱Mechanism of linear and non-linear optical effects in KDP and urea crystals
作品名稱(其他語言)
著者Lin, Zhes-huai; Wang, Zhiz-hong; Chen, Chuang-tien; Lee, Ming-hsien
單位淡江大學物理學系
出版者American Institute of Physics (AIP)
著錄名稱、卷期、頁數Journal of chemical physics 118(5), pp.2349-2356
摘要First-principles calculations of the linear and nonlinear optical properties of KH2PO4 ~KDP! and
CO~NH2)2 are presented. The calculations are an extension of methods we developed earlier and
applied to borate crystals. Electronic band structure obtained from a pseudopotential method is input to the calculation. For two crystals considered, the resulting indices of refraction, birefringence, and nonlinear optical coefficients are in good agreement with experiments. The origin of nonlinear effects has been explained through real-space atom-cutting analysis. For KDP, the contributions of PO4 groups to second-harmonic generation effect are dominant, and the hydrogen bonds contribute
much more to birefringence. For both KDP and urea, the contributions from the virtual electron
process to nonlinear optical responses are dominant.
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語言英文
ISSN0021-9606;1089-7690
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