Optical levitation of a mirror for reaching the standard quantum limit

Yuta Michimura, Yuya Kuwahara, Takafumi Ushiba, Nobuyuki Matsumoto, Masaki Ando

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


We propose a new method to optically levitate a macroscopic mirror with two vertical Fabry-Pérot cavities linearly aligned. This configuration gives the simplest possible optical levitation in which the number of laser beams used is the minimum of two.We demonstrate that reaching the standard quantum limit (SQL) of a displacement measurement with our system is feasible with current technology. The cavity geometry and the levitated mirror parameters are designed to ensure that the Brownian vibration of the mirror surface is smaller than the SQL. Our scheme provides a promising tool for testing macroscopic quantum mechanics.

Original languageEnglish
Pages (from-to)13799-13806
Number of pages8
JournalOptics Express
Issue number12
Publication statusPublished - 2017 Jun 12

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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