Coherent multistep anti-Stokes and stimulated Raman scattering associated with third harmonics in YFeO 3 crystals
Coherent multistep anti-Stokes and stimulated Raman scattering associated with third harmonics in YFeO 3 crystals
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DOI：
10.1103/physrevb.68.155102
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发表时间：
2003-10
影响因子：
3.7
通讯作者：
J. Takahashi;E. Matsubara;T. Arima;E. Hanamura
中科院分区：
文献类型：
--
作者：
J. Takahashi;E. Matsubara;T. Arima;E. Hanamura
将两个红外频率的超短光脉冲注入到正铁氧体单晶中，在可见光范围内高效地产生了多色光脉冲。多色光脉冲的光谱由两束三次谐波和高阶相干反斯托克斯拉曼散射组成。这是由晶体中的声子共振到两个入射光束的频率差而产生的。发射的光信号的频谱覆盖了大于$5000的频率范围，其频率间隔等于相干驱动声子的频率间隔。
Multicolored light pulses are generated with high efficiency in the visible region by injecting two ultrashort light pulses with infrared frequencies into orthoferrite ${\mathrm{YFeO}}_{3}$ single crystals. The spectrum of the multicolored light pulses consists of third harmonics of two beams and higher-order coherent anti-Stokes Raman scattering. This is generated by the excitation of a phonon in the crystal resonating to the frequency difference of two incident beams. The spectrum of the emitted light signals covers a frequency region wider than $5000{\mathrm{cm}}^{\ensuremath{-}1}$ with the same frequency separation equal to that of the coherently driven phonons.