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- W2969890108 abstract "Electromagnetically induced absorption (EIA) of cesium atoms exposed to counter-propagating light waves with orthogonal linear polarizations is studied. Probe beam transmission through a buffer gas-filled vapor cell is monitored as a function of a static magnetic field applied parallel to the wave vectors. The light waves are tuned to a single dipole transition Fg → Fe in the D1 line (λ = 894.6 nm). The proposed magneto-optical configuration helps overcome a long-standing problem in obtaining high-contrast EIA resonances in conjunction with narrow linewidths. Our experiments demonstrate EIA contrast with respect to a broad Doppler absorption background (CD) as high as 1630%. Thus, a high value of CD means that background absorption is almost absent, and the vapor cell transmission profile represents only a single narrow resonance. This result is unique for EIA as well as for electromagnetically induced transparency (EIT) effects, because usually in a resonant medium, narrow EIT or EIA resonances are accompanied by natural-linewidth or other broad spectral features, even in the case of cold atoms. The resonance contrast with respect to the light transmission background (Cback) is also high enough, reaching 75% in the experiments. The full width at half maximum of the narrowest observed EIA is approximately 0.77 mG (0.7 × 0.77 = 540 Hz in the frequency domain). The considered simple scheme has good prospects for the development of various quantum magneto-optical devices such as optical switches and atomic magnetometers." @default.
- W2969890108 created "2019-08-29" @default.
- W2969890108 creator A5067348163 @default.
- W2969890108 creator A5068231776 @default.
- W2969890108 creator A5070495780 @default.
- W2969890108 creator A5085579194 @default.
- W2969890108 date "2019-10-04" @default.
- W2969890108 modified "2023-10-06" @default.
- W2969890108 title "Ultrahigh-quality electromagnetically induced absorption resonances in a cesium vapor cell" @default.
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- W2969890108 doi "https://doi.org/10.1088/1361-6455/ab3d0e" @default.
- W2969890108 hasPublicationYear "2019" @default.
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