Abstract
We have performed femtosecond time-resolved coherent anti-Stokes Raman spectroscopy (CARS) to study the vibrational dynamics of Polyvinyl alcohol (PVA) film. We observed CARS signal beats between vibrational modes in PVA and measured the coherent vibrational relaxation rates of CH and OH stretch modes. We found that the coherent vibrational relaxation of anti-symmetric CH stretch mode in PVA is much faster than that of symmetric mode, probably due to faster resonant vibrational energy transfer to adjacent CH groups in a polymer chain.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
