Optical trapping of the transversal motion for an optically levitated mirror
Optical trapping of the transversal motion for an optically levitated mirror
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DOI：
10.1103/physreva.102.053520
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发表时间：
2020-07
期刊：
影响因子：
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通讯作者：
T. Kawasaki;N. Kita;K. Nagano;Shotaro Wada;Y. Kuwahara;M. Ando;Y. Michimura
中科院分区：
文献类型：
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作者：
T. Kawasaki;N. Kita;K. Nagano;Shotaro Wada;Y. Kuwahara;M. Ando;Y. Michimura
光力学系统是在宏观尺度上解释量子现象的合适系统。该系统应与环境隔离良好，以避免经典噪声，后者会隐藏量子信号。光学悬浮是一种很有前途的将光机械系统与环境隔离的方法。为了实现光学悬浮，需要捕获所有的自由度。迄今为止，光辐射压力下的纵向俘获和旋转俘获已经得到了很好的研究，并得到了各种实验的验证。另一方面，横向圈闭的研究较少。本文首次利用扭转摆实验证实了法布里-珀罗腔反射镜的横向俘获。通过这个演示，我们实验证明了光学悬浮是可以实现的，只有两个法布里-珀罗空腔垂直排列。这项工作为光学悬浮和实现宏观量子系统铺平了道路。
Optomechanical systems are suitable systems to elucidate quantum phenomena at the macroscopic 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. In order to realize optical levitation, all degrees of freedom need to be trapped. So far, longitudinal trapping and rotational trapping with optical radiation pressure have been well studied and validated with various experiments. On the other hand, less attention has been paid to transversal trapping. Here, we experimentally confirmed transversal trapping of a mirror of a Fabry-Perot cavity for the first time by using a torsional pendulum. By this demonstration, we proved experimentally that optical levitation is realizable with only two Fabry-Perot cavities that are aligned vertically. This work paves the way toward optical levitation and realizing a macroscopic quantum system.