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Proceedings Paper

Nonlinear photoassociation spectroscopy near a narrow d-wave Feshbach resonance
Author(s): Yuqing Li; Jizhou Wu; Jie Ma; Liantuan Xiao; Suotang Jia
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Paper Abstract

We demonstrate nonlinear Fano effect in ultracold atom-molecule system composed of Photoassociation (PA) near a narrow d-wave Feshbach resonance for Cs atoms in the hyperfine state F = 3, mF = 3. A series of PA spectra of ultracold Cs atoms trapped in a crossed dipole trap are recorded near the Feshbach resonance. We measure PA rate as a function of magnetic field and clearly find Fano effect with characteristically asymmetric line shapes. Meanwhile, we investigate variations of spectral broadening and shifts as magnetic field around the Feshbach resonance. Our results also show Fano effect has a great effect on both spectral broadening and slope of spectral shift. We develop a nonlinear Fano theory based on magnato-optical quantum interferences in this ultracold atom-molecule system. The theory provides a remarkable agreement with our experimental results.

Paper Details

Date Published: 3 November 2016
PDF: 7 pages
Proc. SPIE 10029, Quantum and Nonlinear Optics IV, 100290Y (3 November 2016); doi: 10.1117/12.2243967
Show Author Affiliations
Yuqing Li, Shanxi Univ. (China)
Jizhou Wu, Shanxi Univ. (China)
Jie Ma, Shanxi Univ. (China)
Liantuan Xiao, Shanxi Univ. (China)
Suotang Jia, Sahnxi Univ. (China)

Published in SPIE Proceedings Vol. 10029:
Quantum and Nonlinear Optics IV
Qihuang Gong; Guang-Can Guo; Byoung Seung Ham, Editor(s)

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