Acta Phys. -Chim. Sin. ›› 1996, Vol. 12 ›› Issue (03): 193-195.doi: 10.3866/PKU.WHXB19960301
• Communication •
Zhong Qing-Hua,Wang Zhao-Hui,Zhu Qi-He,Kong Fan-Ao
The ultrafast processes of tetra-phenyl-porphyrin(TPP), tetra-t-butyl-phthalocyanine(BuPc) and nitro-tri-t-butyl-phthalocyanine (NtBuPc) have been investigated using the femtosecond time-resolved fluorescence depletion method. A sharp peak of 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 peak observed. A long-lived fluorescence depletion has also been observed. It is causing by the stimulated-emission-pumping process produced by the intense probe laser pulse.
Two-photon absorption;Femtosecond time-resolusion,
Zhong Qing-Hua,Wang Zhao-Hui,Zhu Qi-He,Kong Fan-Ao. Study of the Ultrafast Processes of TPP,BuPc and NtBuPc[J].Acta Phys. -Chim. Sin., 1996, 12(03): 193-195.
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