| Issue |
Europhys. Lett.
Volume 48, Number 4, November II 1999
|
|
|---|---|---|
| Page(s) | 385 - 389 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i1999-00494-8 | |
| Published online | 01 September 2002 | |
Light shift of coherent population trapping resonances
Institut für Angewandte Physik der Universität Bonn Wegelerstr. 8, D-53115 Bonn, Germany
Received:
12
July
1999
Accepted:
20
September
1999
We have measured the spectral position of the absorption minimum in a coherent population trapping resonance in thermal cesium vapor as a function of light intensity. The dependence of position on intensity is found to be almost linear. We have furthermore studied the dependence of this light shift on neon buffer gas pressure and find a strong reduction for higher pressures. So the addition of a buffer gas not only reduces the linewidth of the resonance but also a very important systematic effect for precision measurements.
PACS: 42.50.Hz – Strong-field excitation of optical transitions in quantum systems; multi-photon processes; dynamic Stark shift / 32.70.Jz – Line shapes, widths, and shifts / 42.50.Gy – Effects of atomic coherence on propagation, absorption, and amplification of light
© EDP Sciences, 1999
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