期刊
JOURNAL OF CHEMICAL PHYSICS
卷 145, 期 12, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4963223
关键词
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资金
- JSPS [19684014, 21245007]
- Photon-Frontier-Consortium Project by MEXT of Japan
- Grants-in-Aid for Scientific Research [19684014, 21245007] Funding Source: KAKEN
We have experimentally performed the coherent control of delocalized ro-vibrational wave packets (RVWs) of solid para-hydrogen (p-H-2) by the wave packet interferometry (WPI) combined with coherent anti-Stokes Raman scattering (CARS). RVWs of solid p-H2 are delocalized in the crystal, and the wave function with wave vector k similar to 0 is selectively excited via the stimulated Raman process. We have excited the RVW twice by a pair of femtosecond laser pulses with delay controlled by a stabilized Michelson interferometer. Using a broad-band laser pulse, multiple ro-vibrational states can be excited simultaneously. We have observed the time-dependent Ramsey fringe spectra as a function of the inter-pulse delay by a spectrally resolved CARS technique using a narrow-band probe pulse, resolving the different intermediate states. Due to the different fringe oscillation periods among those intermediate states, we can manipulate their amplitude ratio by tuning the inter-pulse delay on the sub-femtosecond time scale. The state-selective manipulation and detection of the CARS signal combined with the WPI is a general and efficient protocol for the control of the interference of multiple quantum states in various quantum systems. Published by AIP Publishing.
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