Enhanced stimulated Raman scattering in optical parametric oscillators from periodically poled KTiOPO4

被引：37
作者：
Pasiskevicius, V [1 ]
Fragemann, A
Laurell, F
Butkus, R
Smilgevicius, V
Piskarskas, A
机构：
[1] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden
[2] Vilnius State Univ, Dept Quantum Elect, Vilnius, Lithuania
来源：
APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 03期
关键词：
D O I：
10.1063/1.1539923
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Enhanced Raman scattering and concurrent Raman oscillation have been observed in nanosecond optical parametric oscillators in the near-infrared spectral region for certain periodicities of periodically poled KTiOPO4. The increased Raman activity is associated with direct excitation of the phonon overtone band by the idler wave. The decrease in efficiency of stimulated Raman scattering at crystal temperature above 80 degreesC is explained by higher dephasing rate of coherently driven lattice polarization due to interaction with thermally generated phonons. (C) 2003 American Institute of Physics.
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页码：325 / 327
页数：3
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