Towards cavity-free ground-state cooling of an acoustic-frequency silicon nitride membrane

Christian M. Pluchar, Aman R. Agrawal, Edward Schenk, Dalziel J. Wilson

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We demonstrate feedback cooling of a millimeter-scale, 40 kHz SiN membrane from room temperature to 5 mK (3000 phonons) using aMichelson interferometer, and discuss the challenges to ground-state cooling without an optical cavity. This advance appears within reach of current membrane technology, positioning it as a compelling alternative to levitated systems for quantum sensing and fundamental weak force measurements.

Original languageEnglish (US)
Pages (from-to)G107-G111
JournalApplied optics
Volume59
Issue number22
DOIs
StatePublished - 2020
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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