Controlling vibrational excitation with shaped Mid-IR pulses

David B. Strasfeld, Sang Hee Shim, Martin T. Zanni

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

We report selective population of the excited vibrational levels of the T1u CO-stretching mode in W(CO)6 using phase-tailored, femtosecond mid-IR (5.2μm, 1923cm-1) pulses. An evolutionary algorithm was used to optimize specific vibrational populations. Stimulated emission peaks, indicative of population inversion, could be induced. Systematic truncation of each optimized pulse allowed for increased understanding of the excitation mechanism. The pulses and techniques developed herein will have broad applications in controlling ground state chemistry and enhancing vibrational spectroscopies.

Original languageEnglish
Article number038102
JournalPhysical review letters
Volume99
Issue number3
DOIs
Publication statusPublished - 2007 Jul 18

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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