中国物理B ›› 2001, Vol. 10 ›› Issue (12): 1139-1143.doi: 10.1088/1009-1963/10/12/311

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OPTICAL LIMITING EFFECT IN TWO PHTHALOCYANINES OBSERVED BY PICOSECOND PULSED LASER

陈煜1, 王夺元1, 曲士良2, 宋瑛林2, 陈国平2, 王玉晓2, 张学如2, 刘树田2   

  1. (1)Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China; (2)Department of Physics, Harbin Institute of Technology, Harbin 150001, China
  • 收稿日期:2001-03-20 修回日期:2001-07-18 出版日期:2001-12-15 发布日期:2005-06-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 292682001 and 29832030).

OPTICAL LIMITING EFFECT IN TWO PHTHALOCYANINES OBSERVED BY PICOSECOND PULSED LASER

Qu Shi-liang (曲士良)a, Chen Yu (陈煜)b, Song Ying-lin (宋瑛林)a, Chen Guo-ping (陈国平)a, Wang Yu-xiao (王玉晓)a, Zhang Xue-ru (张学如)a, Liu Shu-tian (刘树田)a, Wang Duo-yuan (王夺元)b   

  1. a Department of Physics, Harbin Institute of Technology, Harbin 150001, China; b Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2001-03-20 Revised:2001-07-18 Online:2001-12-15 Published:2005-06-12
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 292682001 and 29832030).

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摘要： Optical limiting (OL) properties of two phthalocyanines were investigated by using picosecond laser pulses at 532nm. The relative ratios k of the absorption cross section of the first singlet excited state to that of the ground state were approximately obtained by the analysis of the experimental results in which the reverse saturable absorption model of the three-energy-level scheme was employed. A significant comparison with fullerene C60 was presented for OL. The OL mechanisms have been analysed in detail.

Abstract: Optical limiting (OL) properties of two phthalocyanines were investigated by using picosecond laser pulses at 532nm. The relative ratios k of the absorption cross section of the first singlet excited state to that of the ground state were approximately obtained by the analysis of the experimental results in which the reverse saturable absorption model of the three-energy-level scheme was employed. A significant comparison with fullerene C60 was presented for OL. The OL mechanisms have been analysed in detail.

Key words: optical limiting, reverse saturable absorption, absorption

中图分类号:  (Nonlinear optics)

  • 42.65.-k
42.70.Jk (Polymers and organics)