Cavity-enhanced ultrafast two-dimensional spectroscopy using higher-order modes
Optics
2017-01-25 v1 Atomic Physics
Chemical Physics
Abstract
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 (CE-TAS), 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.
Keywords
Cite
@article{arxiv.1608.08102,
title = {Cavity-enhanced ultrafast two-dimensional spectroscopy using higher-order modes},
author = {Thomas K. Allison},
journal= {arXiv preprint arXiv:1608.08102},
year = {2017}
}