Cavity-enhanced ultrafast two-dimensional spectroscopy using higher order modes

被引:14
作者
Allison, Thomas K. [1 ]
机构
[1] SUNY Stony Brook, Stony Brook, NY 11794 USA
基金
美国国家科学基金会;
关键词
ultrafast spectroscopy; frequency combs; cavity-enhanced spectroscopy; FREQUENCY COMB SPECTROSCOPY; EXCITED-STATE DYNAMICS; INFRARED-SPECTROSCOPY; LASER SPECTROSCOPY; TIME; CLUSTERS; WATER; INTERFEROMETER; TECHNOLOGY; VIBRATIONS;
D O I
10.1088/1361-6455/50/4/044004
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe methods using frequency combs and optical resonators for recording two-dimensional (2D) ultrafast spectroscopy signals with high sensitivity. By coupling multiple frequency combs to higher-order modes of one or more optical cavities, background-free, cavity-enhanced 2D spectroscopy signals are naturally generated via phase cycling. As in cavity-enhanced ultrafast transient absorption spectroscopy, the signal to noise is enhanced by a factor proportional to the cavity finesse squared, so even using cavities of modest finesse, a very high sensitivity is expected, enabling ultrafast 2D spectroscopy experiments in dilute molecular beams.
引用
收藏
页数:10
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