Group and phase velocity mismatch fringes in triple sum-frequency spectroscopy

Group and phase velocity mismatch fringes in triple sum-frequency spectroscopy
复制标题

三重和频谱中的群速度和相速度失配条纹

DOI:
10.1103/physreva.96.063835
复制
发表时间:
2017
期刊:
影响因子:
2.9
通讯作者:
J. C. Wright
J. C. Wright
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Darien J. Morrow;Daniel D. Kohler;J. C. Wright

文献摘要

被引文献

相似文献

在光谐波产生中,群速度和相速度失配的影响是众所周知的,但非简并情况下仍然没有探索。在这项工作中,我们开发了一个分析模型,预测非简并三重和频混频,TSF的速度失配的影响。我们验证了这个模型实验使用两个可调谐,超快,短波红外激光器,以证明从500 μ m厚的蓝宝石板的TSF输出的光谱条纹。我们发现TSF的谱依赖性强烈依赖于输入和输出场之间的相速度和群速度差。我们定义了实用的策略,以减轻速度不匹配的影响。
The effects of group and phase velocity mismatch are well-known in optical harmonic generation, but the non-degenerate cases remain unexplored. In this work we develop an analytic model which predicts velocity mismatch effects in non-degenerate triple sum-frequency mixing, TSF. We verify this model experimentally using two tunable, ultrafast, short-wave-IR lasers to demonstrate spectral fringes in the TSF output from a 500 $\mu$m thick sapphire plate. We find the spectral dependence of the TSF depends strongly on both the phase velocity and the group velocity differences between the input and output fields. We define practical strategies for mitigating the impact of velocity mismatches.