A Liquid-Core Fiber Platform for Classical and Entangled Two-Photon
Absorption Measurements
A Liquid-Core Fiber Platform for Classical and Entangled Two-Photon
Absorption Measurements
We introduce a toluene-filled fiber platform for two-photon absorption measurements. By confining both the light and molecular sample inside the 5 $\mu$m hollow core of the fiber, we increase the distance over which the nonlinear light-matter interaction occurs. With only a 7.3 nL excitation volume, we measure classical two-photon absorption …