摘要
The spin fluctuation in rubidium atom gas is studied via all-optical spin noise spectroscopy（SNS）.Experimental results show that the integrated SNS signal and its full width at half maximum（FWHM） strongly depend on the frequency detuning of the probe light under resonant and non-resonant conditions.The total integrated SNS signal can be well fitted with a single squared Faraday rotation spectrum and the FWHM dependence may be related to the absorption profile of the sample.
The spin fluctuation in rubidium atom gas is studied via all-optical spin noise spectroscopy（SNS）.Experimental results show that the integrated SNS signal and its full width at half maximum（FWHM） strongly depend on the frequency detuning of the probe light under resonant and non-resonant conditions.The total integrated SNS signal can be well fitted with a single squared Faraday rotation spectrum and the FWHM dependence may be related to the absorption profile of the sample.
基金
Project supported by the National Natural Science Foundation of China(Grant Nos.91321310 and 11404325)
the National Basic Research Program of China(Grant No.2013CB922304)
