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Porphyrin S2-S1 Internal Conversion Dynamics Studied with Pump-DFWM

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Abstract

We present pump four-wave mixing experiments that address the initial ultrafast dynamics that has been frequently observed in transient absorption measurements of metal-porphyrins. Our measurements show that this dynamics that has been controversially discussed can be explained by vibrational relaxation in S2.

© 2016 Optical Society of America

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