Experimental studies of enhanced Raman scattering from a hexagonally poled Li Ta O 3 crystal
Experimental studies of enhanced Raman scattering from a hexagonally poled Li Ta O 3 crystal
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DOI:
10.1103/physrevb.72.064307
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发表时间:
2005-08
影响因子:
3.7
通讯作者:
P. Xu;S. Zhu;X. Q. Yu;S. Ji;Z. Gao;G. Zhao;Yunzhi Zhu;N. Ming
中科院分区:
文献类型:
--
作者:
P. Xu;S. Zhu;X. Q. Yu;S. Ji;Z. Gao;G. Zhao;Yunzhi Zhu;N. Ming
The study of phonon-polariton Raman scattering continues to be a challenge, in part because of the difficulty of measuring relatively low intensity of scattered signals. This paper reports the experimental results on phonon-polariton Raman scattering in a hexagonally poled LiTaO3 crystal, showing the anti-Stokes and Stokes Raman signal intensities are significantly enhanced by cascading a couple of quasi-phase-matching processes where the coherent polariton fields are driven and the enhanced scattering signals are further amplified.