Optical trapping of the transversal motion for an optically levitated mirror

• URL: http://arxiv.org/abs/2007.01630v2
• Date: Mon, 21 Dec 2020 06:47:43 GMT
• Title: Optical trapping of the transversal motion for an optically levitated mirror
• Authors: Takuya Kawasaki, Naoki Kita, Koji Nagano, Shotaro Wada, Yuya Kuwahara, Masaki Ando, Yuta Michimura
• Abstract summary: We prove that optical levitation is realizable with only two Fabry-P'erot cavities that are aligned vertically. This work paves the way toward optical levitation and realizing a macroscopic quantum system.
• Score: 0.04618037115403289
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Optomechanical systems are suitable for elucidating quantum phenomena at the macroscopic scale in the sense of the mass scale. The systems should be well-isolated from the environment to avoid classical noises, which conceal quantum signals. Optical levitation is a promising way to isolate optomechanical systems from the environment. To realize optical levitation, all degrees of freedom need to be trapped. Until now, longitudinal trapping and rotational trapping of a mirror with optical radiation pressure have been studied in detail and validated with various experiments. However, less attention has been paid to the transversal trapping of a mirror. Herein, we report a pioneering result where we experimentally confirmed transversal trapping of a mirror of a Fabry-P\'erot cavity using a torsional pendulum. Through this demonstration, we experimentally proved that optical levitation is realizable with only two Fabry-P\'erot cavities that are aligned vertically. This work paves the way toward optical levitation and realizing a macroscopic quantum system.

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