Tunneling-induced spectral broadening of a single atom in a three-dimensional optical lattice

Wookrae Kim, Changwon Park, Jung Ryul Kim, Youngwoon Choi, Sungsam Kang, Sooin Lim, Yea Lee Lee, Jisoon Ihm, Kyungwon An

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We have investigated the spectral broadening in the near-resonance fluorescence spectrum of a single rubidium atom trapped in a three-dimensional (3D) optical lattice in a strong Lamb-Dicke regime. Besides the strong Rayleigh peak, the spectrum exhibited weak Stokes and anti-Stokes Raman sidebands. The line width of the Rayleigh peak for low potential depths was well explained by matter-wave tunneling between the first-two lowest vibrational states of 3D anisotropic harmonic potentials of adjacent local minima of the optical lattice.

Original languageEnglish
Pages (from-to)729-733
Number of pages5
JournalNano Letters
Volume11
Issue number2
DOIs
Publication statusPublished - 2011 Feb 9

Keywords

  • Lamb-Dicke regime
  • Single-atom spectrum
  • heterodyne spectroscopy
  • matter-wave tunneling
  • optical lattice
  • resonance fluorescence

ASJC Scopus subject areas

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

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  • Cite this

    Kim, W., Park, C., Kim, J. R., Choi, Y., Kang, S., Lim, S., Lee, Y. L., Ihm, J., & An, K. (2011). Tunneling-induced spectral broadening of a single atom in a three-dimensional optical lattice. Nano Letters, 11(2), 729-733. https://doi.org/10.1021/nl103858x