Levitated cavity optomechanics in high vacuum

Uros Delić, David Grass, Manuel Reisenbauer, Tobias Damm, Martin Weitz, Nikolai Kiesel, Markus Aspelmeyer

Publications: Contribution to journalArticlePeer Reviewed

Abstract

We report dispersive coupling of an optically trapped nanoparticle to the field of a Fabry–Perot cavity in high vacuum. We demonstrate nanometer-level control in positioning the particle with respect to the cavity field, which allows access to linear, quadratic, and tertiary optomechanical interactions in the resolved sideband regime. We determine all relevant coupling rates of the system, i.e. mechanical and optical losses as well as optomechanical interaction, and obtain a quantum cooperativity of C Q = 0.01. Based on the presented performance, the regime of strong cooperativity (C Q > 1) is clearly within reach by further decreasing the mode volume of the cavity.
Original languageEnglish
Article number025006
Number of pages11
JournalQuantum Science and Technology
Volume5
Issue number2
DOIs
Publication statusPublished - 17 Mar 2020

Austrian Fields of Science 2012

  • 103026 Quantum optics

Keywords

  • levitated cavity optomechanics
  • nanoparticle
  • optical levitation
  • optomechanics
  • quantum cooperativity

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