Self-organization effects and light amplification of collective atomic recoil motion in a harmonic trap

L.Zhang,; Yang, Guojian; Xia, Lin

doi:10.1088/1464-4266/7/11/007

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Gain Spectrum and Detection1

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2013

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“…Our calculations on this system as shown in Fig. 2 demonstrates a high gain of the weak probe mode [35,49], and reveals a cavity enhanced Raman spectrum with a regular pectinate profile. The high-gain peaks of the spectrum are closely related to the collective atomic motion in the trap with a gain magnitude enhanced by population occupations of the atoms on different vibration modes [50].…”

Section: Gain Spectrum and Detectionmentioning

confidence: 71%

Opto-mechanical estimation of micro-trap with cold atoms via nonlinear stimulated Raman scattering spectrum

Zhang

2013

Appl. Phys. B

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High-gain resonant nonlinear Raman scattering on trapped cold atoms within a high-fineness ring optical cavity is simply explained under a nonlinear opto-mechanical mechanism, and a proposal using it to detect frequency of micro-trap on atom chip is presented. The enhancement of scattering spectrum is due to a coherent Raman conversion between two different cavity modes mediated by collective vibrations of atoms through nonlinear opto-mechanical couplings. The physical conditions of this technique are roughly estimated on Rubidium atoms, and a simple quantum analysis as well as a multi-body semiclassical simulation on this nonlinear Raman process is conducted.

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Section: Gain Spectrum and Detectionmentioning

confidence: 71%