Type

Journal Article

Authors

Takuya Satoh
Akitoshi Koreeda
Yasuliro Fujii
Minori Kichise
Wei-Hung Hsu
Masataka Kanamaru
Pritam Khan

Subjects

Physics

Topics
raman spectroscopy raman scattering optical pulses coherent phonon laser excitation isrs pump probe spectroscopy spontaneous raman spectroscopy

Excitation of coherent optical phonons in iron garnet by femtosecond laser pulses (2019)

Abstract The full text of this article will not be available in ULIR until the embargo expires on the 25/04/2020. We employed femtosecond pump-probe technique to investigate the dynamics of coherent optical phonons in iron garnet. A phenomenological symmetry-based consideration reveals that oscillations of the terahertz T2g mode are excited. Selective excitation by a linearly polarized pump and detection by a circularly polarized probe confirm that impulsive stimulated Raman scattering (ISRS) is the driving force for the coherent phonons. Experimental results obtained from ISRS measurements reveal excellent agreement with spontaneous Raman spectroscopy data, analyzed by considering the symmetry of the phonon modes and corresponding excitation and detection selection rules.
Collections Ireland -> University of Limerick -> Centres Science and Engineering
Ireland -> University of Limerick -> Physics
Ireland -> University of Limerick -> Faculty of Science and Engineering
Ireland -> University of Limerick -> Bernal Institute
Ireland -> University of Limerick -> Departments Science and Engineering

Full list of authors on original publication

Takuya Satoh, Akitoshi Koreeda, Yasuliro Fujii, Minori Kichise, Wei-Hung Hsu, Masataka Kanamaru, Pritam Khan

Experts in our system

1
Pritam Khan
University of Limerick
Total Publications: 4