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Vibrational Population Control in Liquid-Phase Metal Carbonyls

Published

Author(s)

V D. Kleiman, Joseph S. Melinger, Edwin J. Heilweil

Abstract

Broadband picosecond and femtosecond mid-infrared chirped-pulse excitation with broadband probe techniques are being explored at NIST using multi-element, mid-infrared focal plane array detectors. Ultrafast infrared chirped IR pulse generation, detection and pump-probe spectroscopy schemes are reviewed. These methods are used to coherently control and probe vibrational overtone populations and the results modeled with a adiabatic Block equations. Coherent control of the T10 Co-stretching vibrational overtone population distributions for tungsten-hexacarbonlyl in room temperature n-hexane using deliberately chirped mid-IR excitation pulses is reported. Negatively chirped picosecond IR excitaiton pulses enhance v=2 population while intense femtosecond pulses produce only v=1 excitation.
Proceedings Title
Femtochemistry and Femtobiology, Conference | | Femtochemistry and Femtobiology: Ultrafast Dynamics in Molecular Science | World Scientific Publishing
Conference Dates
September 1, 2001
Conference Location
Toldeo, 1, SP
Conference Title
Femtochemistry Femtobiology

Keywords

broadband defection, chirped infrared pulses, coherent vibrational control, condensed phase, metal hexacarbonyls, overtone up-pumping, ultrashort infrared, vibrational control, vibrational population

Citation

Kleiman, V. , Melinger, J. and Heilweil, E. (2002), Vibrational Population Control in Liquid-Phase Metal Carbonyls, Femtochemistry and Femtobiology, Conference | | Femtochemistry and Femtobiology: Ultrafast Dynamics in Molecular Science | World Scientific Publishing, Toldeo, 1, SP (Accessed April 25, 2024)
Created May 31, 2002, Updated October 12, 2021