Diffractive optics implementation of six-wave mixing.
Diffractive optics implementation of six-wave mixing.
复制标题
六波混频的衍射光学实现。
DOI：
10.1364/ol.25.000853
复制
发表时间：
2000
期刊：
影响因子：
3.6
通讯作者：
R. J. Dwayne Miller
中科院分区：
文献类型：
--
作者：
V. Astinov;K. Kubarych;C. Milne;R. J. Dwayne Miller
衍射光学被应用到六波混频过程中，以提供一种单一的光学方法来获得所需的、相对复杂的、位相匹配的几何形状，以区分低阶非线性响应。衍射光学是专门为用于液体动态结构的飞秒二维拉曼研究的适当脉冲对的宽带操作和被动锁相而设计的。研究了液体CS>；(2)中的五阶信号；采用两种不同颜色的激励和探头来减少背景散射，以及两种不同的相位匹配几何结构，它们对级联三阶过程的抑制程度不同。
Diffractive optics are applied to six-wave mixing processes to provide a single optic approach to attaining the required, relatively complex, phase-matching geometry to discriminate against lower-order nonlinear responses. The diffractive optics were designed specifically for broad-bandwidth operation and passive phase locking of the appropriate pulse pairs for use in femtosecond two-dimensional Raman studies of the dynamic structure of liquids. The fifth-order signal was studied in liquid CS>(2); two different colors were used for the excitation and the probe to reduce background scatter, as were two different phase-matching geometries with different degrees of suppression of cascaded third-order processes.