Kerr-Enhanced Optical Spring
Abstract
We propose and experimentally demonstrate the generation of enhanced optical springs using the optical Kerr effect. A nonlinear optical crystal is inserted into a Fabry-Perot cavity with a movable mirror, and a chain of second-order nonlinear optical effects in the phase-mismatched condition induces the Kerr effect. The optical spring constant is enhanced by a factor of over linear theory. To our knowledge, this is the first realization of optomechanical coupling enhancement using a nonlinear optical effect, which has been theoretically investigated to overcome the performance limitations of linear optomechanical systems. The tunable nonlinearity of demonstrated system has a wide range of potential applications, from observing gravitational waves emitted by binary neutron star post-merger remnants to cooling macroscopic oscillators to their quantum ground state.
Cite
@article{arxiv.2310.18828,
title = {Kerr-Enhanced Optical Spring},
author = {Sotatsu Otabe and Wataru Usukura and Kaido Suzuki and Kentaro Komori and Yuta Michimura and Ken-ichi Harada and Kentaro Somiya},
journal= {arXiv preprint arXiv:2310.18828},
year = {2024}
}
Comments
6 pages, 4 figures