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 language | English |
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Pages (from-to) | 729-733 |
Number of pages | 5 |
Journal | Nano Letters |
Volume | 11 |
Issue number | 2 |
DOIs | |
Publication status | Published - 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