Title :
Anomalous nonlinearity in hierarchical J-aggregates of three-level porphyrin
Author :
Kobayashi, Takayoshi ; Misawa, Kazuhiko
Author_Institution :
Dept. of Phys., Tokyo Univ., Japan
Abstract :
We report ultrafast two-photon nonlinearity in one-dimensional J-aggregates of three-level molecules. The molecule studied is tetraphenyl porphine sulfonic acid (TPPS), which is also very important as a model material for solar cells and light-harvesting systems
Keywords :
high-speed optical techniques; nonlinear optics; optical materials; organic compounds; solar cells; two-photon processes; anomalous nonlinearity; hierarchical J-aggregates; light-harvesting systems; one-dimensional J-aggregates; solar cells; tetraphenyl porphine sulfonic acid; three-level molecules; three-level porphyrin; ultrafast two-photon nonlinearity; Absorption; Energy exchange; Excitons; Fiber nonlinear optics; Laser excitation; Nonlinear optics; Physics; Pulse amplifiers; Time measurement; Ultrafast optics;
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.1998.710296
