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Coherent Control of the Photodissociation of Triiodide in Solution Reveals New Pathways

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Ultrafast Phenomena XIX

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 162))

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Abstract

We perform closed- and open-loop coherent control experiments of the photodissociation of triiodide (I3 ) in ethanol using shaped UV pulses. In the regime where the relative diiodide (I2 ) yield is excitation-independent, we observe a symmetrical second-order chirp dependence of the I2 yield, and that the I2 production can be controlled within 40 % by varying the second-order chirp of the pump pulse. We show that additional pathways involving higher-lying potential energy surfaces are viable means to explain such observations.

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Acknowledgments

This work was supported by the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) and the Hamburg Center for Ultrafast Imaging (CUI).

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Correspondence to R. J. Dwayne Miller .

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Xian, R., Prokhorenko, V.I., Field, R.L., Dwayne Miller, R.J. (2015). Coherent Control of the Photodissociation of Triiodide in Solution Reveals New Pathways. In: Yamanouchi, K., Cundiff, S., de Vivie-Riedle, R., Kuwata-Gonokami, M., DiMauro, L. (eds) Ultrafast Phenomena XIX. Springer Proceedings in Physics, vol 162. Springer, Cham. https://doi.org/10.1007/978-3-319-13242-6_93

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