共 50 条
Spectroscopic properties and three-photon absorption induced optical limiting of series of novel nonlinear chromophores
被引:2
作者:
Guo, Fu-quan
[1
,3
]
Sun, Xiao-lao
[1
]
Hao Liang
[2
]
Hu, Zhi-yuan
[1
]
Zhang, Qi-jin
[3
]
Ming, Hai
[4
]
机构:
[1] Luoyang Inst Sci & Technol, Dept Mat Engn, Luoyang 471023, Peoples R China
[2] Huizhou Univ, Dept Chem Engn, Guangdong 516007, Peoples R China
[3] Univ Sci & Technol China, Dept Polymer Sci & Engn, Anhua 230026, Peoples R China
[4] Univ Sci & Technol China, Dept Phys, Anhua 230026, Peoples R China
基金:
中国国家自然科学基金;
关键词:
nonlinear chromophores;
solvatochromism;
three-photon absorption;
optical limiting;
D O I:
10.1088/1674-0068/21/03/227-232
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
O56 [分子物理学、原子物理学];
学科分类号:
070203 ;
070304 ;
081704 ;
1406 ;
摘要:
Three novel nonlinear chrornophores with symmetric D-Pi-D molecular structure and extended conjugated length were synthesized. Solvatochromism analysis shows great symmetric intramolecular charge transfer occurring in chromophores by the enhancement in the dipole moment between the ground and excited states. The properties of optical power limiting induced by three-photon absorption (3PA) are demonstrated. Large 3PA coefficients and the corresponding molecular cross sections as high as 10(-74) cm(6)s(2) were obtained for nanosecond laser pulses at, 1.06 mu m from nonlinear transmission measurements.
引用
收藏
页码:227 / 232
页数:6
相关论文
共 50 条