caa a22 4500 44536923X CHVBK 20180317142941.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00340-011-4488-1 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4488-1 Temperature dependence of coherent phonons in TbVO4 crystal probed by ultrafast optical spectroscopy [Elektronische Daten] [Z. Jin, H. Ma, D. Li, L. Wang, G. Ma, F. Guo, J. Chen] Coherent optical phonons in terbium vanadate (TbVO4) are investigated by using femtosecond time-resolved pump-probe spectroscopy at temperatures from 20 to 300K. Combined with the Raman spectrum, the coherent phonon mode is attributed to an optical phonon mode of B1g symmetry. The main generation mechanism of the coherent optical phonons is revealed to be the impulsive stimulated Raman scattering. The temperature dependence of the dephasing time reveals that the main mechanism of the coherent phonon population decay is anharmonic phonon-phonon coupling, which causes a redshift of the coherent phonon frequency with increasing temperature. Springer-Verlag, 2011 Jin Z. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut Ma H. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut Li D. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut Wang L. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut Ma G. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut Guo F. College of Chemistry and Chemical Engineering, Fuzhou University, 350002, Fuzhou, P.R. China aut Chen J. College of Chemistry and Chemical Engineering, Fuzhou University, 350002, Fuzhou, P.R. China aut Applied Physics B Springer-Verlag 104/1(2011-07-01), 59-63 0946-2171 104:1<59 2011 104 340 https://doi.org/10.1007/s00340-011-4488-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4488-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jin Z. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Ma H. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Li D. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Wang L. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Ma G. Department of Physics, Shanghai University, 99 Shangda Road, 200444, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Guo F. College of Chemistry and Chemical Engineering, Fuzhou University, 350002, Fuzhou, P.R. China aut NATIONALLICENCE 700 1- Chen J. College of Chemistry and Chemical Engineering, Fuzhou University, 350002, Fuzhou, P.R. China aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 104/1(2011-07-01), 59-63 0946-2171 104:1<59 2011 104 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer