Pump-probe experiments with sub-100 femtosecond pulses for characterizing the excited state dynamics of phthalocyanine thin films

S. Venugopal Rao; Debasis Swain; Surya P. Tewari

doi:10.1117/12.841958

1 March 2010 Pump-probe experiments with sub-100 femtosecond pulses for characterizing the excited state dynamics of phthalocyanine thin films

S. Venugopal Rao, Debasis Swain, Surya P. Tewari

Author Affiliations +

Proceedings Volume 7599, Organic Photonic Materials and Devices XII; 75991P (2010) https://doi.org/10.1117/12.841958
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

We present our results on the characterization of ultrafast excited state dynamics of two phthalocyanines in thin film form studied using femtosecond pump-probe technique. One was a symmetric Zinc phthalocyanine (SPc) while the other was an unsymmetrical Zinc phthalocyanine (USPc). The femtosecond (fs) pulses at 800 nm were characterized using a single shot autocorrelator. The pump probe measurements were carried out with 590/610 nm pulses emanating from an optical parametric amplifier. SPc demonstrated an excited lifetime of ~30 ps while the ASPc exhibited ~60 ps lifetime. The potential applications of these molecules are discussed briefly.

Citation Download Citation

S. Venugopal Rao, Debasis Swain, and Surya P. Tewari "Pump-probe experiments with sub-100 femtosecond pulses for characterizing the excited state dynamics of phthalocyanine thin films", Proc. SPIE 7599, Organic Photonic Materials and Devices XII, 75991P (1 March 2010); https://doi.org/10.1117/12.841958

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