標題: | Signs of nonlinear refraction in chloroaluminum phthalocyanine solution |
作者: | Wei, TH Huang, TH Lin, MS 應用化學系 Department of Applied Chemistry |
公開日期: | 18-五月-1998 |
摘要: | Opposite signs of nonlinear refraction in chloroaluminum (ClAl) phthalocyanine (Pc) dissolved in methanol are observed using the Z-scan technique with two output modes of a frequency-doubled, Q-switched, mode-locked Nd:YAG laser operating at 10 Hz. Using the single picosecond (ps) pulses switched out of the pulse trains, positive nonlinear refraction is observed and attributed to population transitions among ClAlPc's singlet states. Using the full nanosecond pulse trains, a sign change of nonlinear refraction relative to that of single ps-pulse excitation is observed, and is attributed to the heat-induced temperature rise and the population relaxing to CLAlPc's triplet states. (C) 1998 American Institute of Physics. [S0003-6951(98)01720-3]. |
URI: | http://dx.doi.org/10.1063/1.121401 http://hdl.handle.net/11536/32615 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.121401 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 72 |
Issue: | 20 |
起始頁: | 2505 |
結束頁: | 2507 |
顯示於類別: | 期刊論文 |