Polarization dependence of transient absorption change in vanadylphthalocyanine

Takashi Isoshima; Nicola Pfeffer; Minquan Tian; Tatsuo Wada; Hiroyuki Sasabe

doi:10.1117/12.256176

1 November 1996 Polarization dependence of transient absorption change in vanadylphthalocyanine

Takashi Isoshima, Nicola Pfeffer, Minquan Tian, Tatsuo Wada, Hiroyuki Sasabe

Proceedings Volume 2852, Nonlinear Optical Properties of Organic Materials IX; (1996) https://doi.org/10.1117/12.256176
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

The transient absorption spectrum of a nonaggregated vanadylphthalocyanine solution has been measured by a subpicosecond pump-probe spectroscopy technique. A biexponential response with time constants of 4 ps and 800 ps has been observed. The dependence of the polarizations of pump and probe light has been investigated. The parallel-to- perpendicular ratio, i.e. the ratio of transient absorption change between configurations where pump and probe polarizations are parallel and perpendicular to each other, respectively, is 4:3. This is different from the ratio in ordinary 1D molecules, reflecting the 2D character of the vanadylphthalocyanine molecule.

Citation Download Citation

Takashi Isoshima, Nicola Pfeffer, Minquan Tian, Tatsuo Wada, and Hiroyuki Sasabe "Polarization dependence of transient absorption change in vanadylphthalocyanine", Proc. SPIE 2852, Nonlinear Optical Properties of Organic Materials IX, (1 November 1996); https://doi.org/10.1117/12.256176

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