Sanchez-Palencia, L;
Carminati, FR;
Schiavoni, M;
Renzoni, F;
Grynberg, G;
(2002)
Brillouin propagation modes in optical lattices: Interpretation in terms of nonconventional stochastic resonance.
PHYS REV LETT
, 88
(13)
, Article 133903. 10.1103/PhysRevLett.88.133903.
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Abstract
We report the first direct observation of Brillouin-like propagation modes in a dissipative periodic optical lattice. This has been done by observing a resonant behavior of the spatial diffusion coefficient in the direction corresponding to the propagation mode with the phase velocity of the moving intensity modulation used to excite these propagation modes. Furthermore, we show theoretically that the amplitude of the Brillouin mode is a nonmonotonic function of the strength of the noise corresponding to the optical pumping, and discuss this behavior in terms of nonconventional stochastic resonance.
| Type: | Article |
|---|---|
| Title: | Brillouin propagation modes in optical lattices: Interpretation in terms of nonconventional stochastic resonance |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.88.133903 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.88.133903 |
| Language: | English |
| Keywords: | ATOMS, MOLASSES |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/53118 |
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