Title :
Extreme large enhancement on optical nonlinearity of fullerene by forming charge transfer complex
Author :
Gong, Qihuang ; Li, Jainliang ; Wang, Shufeng ; Yang, Hong ; An, Xing ; Chen, Huiying ; Qiang, Di
Author_Institution :
Dept. of Phys., Beijing Univ., China
Abstract :
We measured the third-order optical nonlinearity of a pure C60 solution and its derivative C60-polyaminonitrile at 810 nm wavelength. The light source was a femtosecond Ti:sapphire laser. The light beam from the laser was split into two beams, a strong one and a weak one. Their intensity ratio was about 10:1. The strong one was used as a pump beam, which was polarized at 45° with respect to the weak one. The weak beam acted as a probe beam
Keywords :
fullerene compounds; fullerenes; high-speed optical techniques; optical Kerr effect; optical materials; polarisability; 810 nm; Al2O3:Ti; C60; C60 solution; C60-polyaminonitrile; charge transfer complex; femtosecond Ti:sapphire laser; fullerene; intensity ratio; light beam; light source; optical nonlinearity; probe beam; pump beam; strong laser beam; third-order optical nonlinearity; weak laser beam; Laser beams; Laser excitation; Light sources; Optical polarization; Optical pumping; Probes; Pump lasers; Ultrafast optics; Ultraviolet sources; Wavelength measurement;
Conference_Titel :
Nonlinear Optics '98: Materials, Fundamentals and Applications Topical Meeting
Conference_Location :
Kauai, HI
Print_ISBN :
0-7803-4950-4
DOI :
10.1109/NLO.1998.710322
