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Quantum control of I2 in the gas phase and in condensed phase solid Kr matrix
 

Summary: Quantum control of I2 in the gas phase and in condensed phase
solid Kr matrix
Christopher J. Bardeen, Jianwei Che, Kent R. Wilson, and Vladislav V. Yakovlev
Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla,
California 92093-0339
V. A. Apkarian, C. C. Martens, and R. Zadoyan
Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025
Bern Kohler
Department of Chemistry, Ohio State University, Columbus, Ohio 43210
Michael Messina
Department of Chemistry, University of North Carolina, Wilmington, Wilmington,
North Carolina 28403-3297
Received 28 August 1996; accepted 23 January 1997
We present experimental results and theoretical simulations for an example of quantum control in
both gas and condensed phase environments. Specifically, we show that the natural spreading of
vibrational wavepackets in anharmonic potentials can be counteracted when the wavepackets are
prepared with properly tailored ultrafast light pulses, both for gas phase I2 and for I2 embedded in
a cold Kr matrix. We use laser induced fluorescence to probe the evolution of the shaped
wavepacket. In the gas phase, at 313 K, we show that molecular rotations play an important role in
determining the localization of the prepared superposition. In the simulations, the role of rotations

  

Source: Apkarian, V. Ara - Department of Chemistry, University of California, Irvine

 

Collections: Chemistry