Double resonance of Raman transitions in a degenerate Fermi gas

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Title
Double resonance of Raman transitions in a degenerate Fermi gas
Author(s)
Moosong Lee; Jeong Ho Han; Jin Hyoun Kang; Min-Seok Kim; Yong il Shin
Publication Date
2017-04
Journal
PHYSICAL REVIEW A, v.95, no.4, pp.043627 -
Publisher
AMER PHYSICAL SOCAmerican Physical Society
Abstract
We measure momentum-resolved Raman spectra of a spin-polarized degenerate Fermi gas of Yb173 atoms for a wide range of magnetic fields, where the atoms are irradiated by a pair of counterpropagating Raman laser beams as in the conventional spin-orbit coupling scheme. Double resonance of first- and second-order Raman transitions occurs at a certain magnetic field and the spectrum exhibits a doublet splitting for high laser intensities. The measured spectral splitting is quantitatively accounted for by the Autler-Townes effect. We show that our measurement results are consistent with the spinful band structure of a Fermi gas in the spatially oscillating effective magnetic field generated by the Raman laser fields. © 2017 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/3542
ISSN
2469-9926
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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