摘要
The ultrafast processes of tetra-phenyl-porphyrin(TPP), tetra-t-butyl-phthalocyanine(BuPc) and nitro-tri-t-butyl-phthalocyanine (NtBuPc) have been inves-tigated using the femtosecond time-resolved fluorescence depletion method. A sharp peakof the fluorescence depletion with delay time has been observed both for TPP and BuPc.An ultrafast two-photon absorption process has been proposed to explain the sharp peakobserved. A long-lived fluorescence depletion has also been observed. It is causing by thestimulated-emission-pumping process produced by the intense probe laser pulses.
The ultrafast processes of tetra-phenyl-porphyrin(TPP), tetra-t-butyl-phthalocyanine(BuPc) and nitro-tri-t-butyl-phthalocyanine (NtBuPc) have been inves-tigated using the femtosecond time-resolved fluorescence depletion method. A sharp peakof the fluorescence depletion with delay time has been observed both for TPP and BuPc.An ultrafast two-photon absorption process has been proposed to explain the sharp peakobserved. A long-lived fluorescence depletion has also been observed. It is causing by thestimulated-emission-pumping process produced by the intense probe laser pulses.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1996年第3期193-195,共3页
Acta Physico-Chimica Sinica
关键词
荧光凹陷
四苯基卟啉
丁基酞菁
驰豫过程
Two-photon absorption, Femtosecond time-resolusion, Fluorescence depletion,Tetra-phenyl-porphyrin (TPP),Tetra-t-butyl-phthalocyanine (BuPc),Nitro-tri-t-butyl-phthalocyanine(NtBuPc)
