中国物理B ›› 2016, Vol. 25 ›› Issue (1): 13302-013302.doi: 10.1088/1674-1056/25/1/013302

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Numerical analyses on optical limiting performances of chloroindium phthalocyanines with different substituent positions

Yu-Jin Zhang(张玉瑾), Xing-Zhe Li(李兴哲), Ji-Cai Liu(刘纪彩), Chuan-Kui Wang(王传奎)   

  1. 1. College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;
    2. Mathematics and Physics Department, North China Electric Power University, Beijing 102206, China
  • 收稿日期:2015-07-29 修回日期:2015-08-21 出版日期:2016-01-05 发布日期:2016-01-05
  • 通讯作者: Chuan-Kui Wang E-mail:ckwang@sdnu.edu.cn
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2011CB808100), the National Natural Science Foundation of China (Grant Nos. 11204078 and 11574082), and the Fundamental Research Funds for the Central Universities of China (Grant No. 2015MS54).

Numerical analyses on optical limiting performances of chloroindium phthalocyanines with different substituent positions

Yu-Jin Zhang(张玉瑾)1, Xing-Zhe Li(李兴哲)2, Ji-Cai Liu(刘纪彩)2, Chuan-Kui Wang(王传奎)1   

  1. 1. College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;
    2. Mathematics and Physics Department, North China Electric Power University, Beijing 102206, China
  • Received:2015-07-29 Revised:2015-08-21 Online:2016-01-05 Published:2016-01-05
  • Contact: Chuan-Kui Wang E-mail:ckwang@sdnu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2011CB808100), the National Natural Science Foundation of China (Grant Nos. 11204078 and 11574082), and the Fundamental Research Funds for the Central Universities of China (Grant No. 2015MS54).

摘要: Optical limiting properties of two soluble chloroindium phthalocyanines with α-and β -alkoxyl substituents in nanosecond laser field have been studied by solving numerically the coupled singlet-triplet rate equation together with the paraxial wave field equation under the Crank-Nicholson scheme. Both transverse and longitudinal effects of the laser field on photophysical properties of the compounds are considered. Effective transfer time between the ground state and the lowest triplet state is defined in reformulated rate equations to characterize dynamics of singlet-triplet state population transfer. It is found that both phthalocyanines exhibit good nonlinear optical absorption abilities, while the compound with α -substituent shows enhanced optical limiting performance. Our ab-initio calculations reveal that the phthalocyanine with α -substituent has more obvious electron delocalization and lower frontier orbital transfer energies, which are responsible for its preferable photophysical properties.

关键词: optical limiting, nanosecond laser field, phthalocyanine

Abstract: Optical limiting properties of two soluble chloroindium phthalocyanines with α-and β -alkoxyl substituents in nanosecond laser field have been studied by solving numerically the coupled singlet-triplet rate equation together with the paraxial wave field equation under the Crank-Nicholson scheme. Both transverse and longitudinal effects of the laser field on photophysical properties of the compounds are considered. Effective transfer time between the ground state and the lowest triplet state is defined in reformulated rate equations to characterize dynamics of singlet-triplet state population transfer. It is found that both phthalocyanines exhibit good nonlinear optical absorption abilities, while the compound with α -substituent shows enhanced optical limiting performance. Our ab-initio calculations reveal that the phthalocyanine with α -substituent has more obvious electron delocalization and lower frontier orbital transfer energies, which are responsible for its preferable photophysical properties.

Key words: optical limiting, nanosecond laser field, phthalocyanine

中图分类号:  (Photon interactions with molecules)

  • 33.80.-b
82.50.Pt (Multiphoton processes) 31.15.A- (Ab initio calculations)