高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (4): 620.

• 研究快报 • 上一篇    下一篇

一种激光倍频新材料──间羟基苯甲酸的初步研究

赵波1, 卢文庆1, 吴芸2   

  1. 1. 南京师范大学化学系, 南京 210097;
    2. 中国药科大学基础部, 南京 210038
  • 收稿日期:1999-09-25 出版日期:2000-04-24 发布日期:2000-04-24
  • 通讯作者: 赵 波(1969年出生),男,博士,讲师,从事物理化学方面的研究.
  • 基金资助:

    南京师范大学青年基金

Primary Study on a New Kind of Second-Order Nonlinear Optical Material──m-Hydroxybenzoic Acid

ZHAO Bo1, LU Wen-Qing1, WU Yun2   

  1. 1. Department of Chemistry, Nanjing Normal University, Nanjing 210097, China;
    2. Department of Basic Science, China Pharmaceutical University, Nanjing 210038, China
  • Received:1999-09-25 Online:2000-04-24 Published:2000-04-24

关键词: 间羟基苯甲酸, 二阶非线性光学性质, 截止吸收波长

Abstract: Anew kind of second order nonlinear optical(NLO) material——m-hydroxybenzoic acid(HBA) was reported in this paper. Primary study results revealed that it had a relatively strong nonlinearity, its powder SHG effect was 12 times that of KDP. The solid cut-off wavelength Kcut-off (350 nm) is very short compared to other organic second order NLOmaterials. The experimental results also showed that HBAhad a high laser damage threshold and good characteristic thermal stability. Furthermore, We calculated its second-order nonlinear hyperpolarizability β and analyzed the microscopic nonlinear properties, and found that the hydroxyl group could improve β obviously while the hydroxyl multisubstitution could hardly contribute to β values.

Key words: m-Hydroxybenzoic acid, Second-order nonlinear optical property, Cut-off wavelength

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