Literature DB >> 27877400

Ultrafast zone-center coherent lattice dynamics in ferroelectric lithium tantalate.

Jianbo Hu1, Oleg V Misochko2, Hiroshi Takahashi3, Hiroaki Koguchi3, Takayuki Eda3, Kazutaka G Nakamura3.   

Abstract

Femtosecond time-resolved pump-probe experiments were carried out to study ultrafast lattice dynamics of ferroelectric lithium tantalate. Both the fully symmetric (A1 mode) and doubly degenerate (E mode) coherent phonons at the center of the Brillouin zone were excited via impulsive stimulated Raman scattering, as confirmed by the excitation intensity dependence.

Entities:  

Keywords:  ISRS; coherent phonon; lithium tantalate

Year:  2011        PMID： 27877400      PMCID： PMC5090472          DOI： 10.1088/1468-6996/12/3/034409

Source DB:  PubMed          Journal:  Sci Technol Adv Mater        ISSN： 1468-6996            Impact factor:   8.090


  4 in total

1.  Recent developments in compact ultrafast lasers.

Authors:  Ursula Keller
Journal:  Nature       Date:  2003-08-14       Impact factor: 49.962

2.  Hyper-Raman and Raman studies on the phase transition of ferroelectric LiTaO3.

Authors: 
Journal:  Phys Rev B Condens Matter       Date:  1994-04-01

3.  Observation of THz phonon-polariton beats in LiTaO3.

Authors: 
Journal:  Phys Rev Lett       Date:  1992-11-09       Impact factor: 9.161

4.  Assignment and temperature dependence of the Raman modes of LiTaO3 studied over the ferroelectric and paraelectric phases.

Authors: 
Journal:  Phys Rev B Condens Matter       Date:  1988-11-15
  4 in total

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