Photothermal self-oscillation and laser cooling of graphene optomechanical systems

Robert A. Barton, Isaac R. Storch, Vivekananda P. Adiga, Reyu Sakakibara, Benjamin R. Cipriany, B. Ilic, Si Ping Wang, Peijie Ong, Paul L. McEuen, Jeevak M. Parpia, Harold G. Craighead

Research output: Contribution to journalArticle

119 Scopus citations

Abstract

By virtue of their low mass and stiffness, atomically thin mechanical resonators are attractive candidates for use in optomechanics. Here, we demonstrate photothermal back-action in a graphene mechanical resonator comprising one end of a Fabry-Perot cavity. As a demonstration of the utility of this effect, we show that a continuous wave laser can be used to cool a graphene vibrational mode or to power a graphene-based tunable frequency oscillator. Owing to graphene's high thermal conductivity and optical absorption, photothermal optomechanics is efficient in graphene and could ultimately enable laser cooling to the quantum ground state or applications such as photonic signal processing.

Original languageEnglish (US)
Pages (from-to)4681-4686
Number of pages6
JournalNano Letters
Volume12
Issue number9
DOIs
StatePublished - Sep 12 2012

Keywords

  • Graphene
  • laser cooling
  • nanoelectromechanical systems (NEMS)
  • optomechanics
  • photothermal force
  • self-oscillation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

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