Department of Electronics and Information Technology, Shanxi University Taiyuan 030006 and Key Laboratory of Quantum Optics, Ministry of Education, China
Abstract The density dependence of the line shift of the cesium D2 line is studied with sub-Doppler selective reflection spectroscopy. By use of wavelength modulation and sixth-harmonics detection we observed the coefficient of the pressure-induced shift of the 6S1/2(F=4)→6P3/2(F'=3) hyperfine transition of the cesium D2 line $\Delta \delta/\rho$ = -0.9(5)×10-8cm3. In the limit $\rho=0$ a frequency shift about -3MHz remains, which may be attributed to long-range atom－surface interactions. The experimental results can be used in measurements of the local field-induced frequency shift at high atomic densities with sufficient accuracy.
Received: 15 February 2001
Revised: 23 February 2001
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 19774039, 60078009) and the Natural Science Foundation of Shanxi Province.
Cite this article:
Xiao Lian-tuan (肖连团), Zhao Jian-ming (赵建明), Li Chang-yong (李昌勇), Jia Suo-tang (贾锁堂), Zhou Guo-sheng (周国生) PRECISE MEASUREMENT OF DENSITY-DEPENDENT SHIFT BY WAVELENGTH MODULATION REFLECTION SPECTROSCOPY 2001 Chinese Physics 10 716
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
