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Brillouin propagation modes in optical lattices: Interpretation in terms of nonconventional stochastic resonance

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. Green open access

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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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