Spin noise spectroscopy of rubidium atomic gas under resonant and non-resonant conditions

Ma Jian¹, Shi Ping¹, Qian Xuan¹, Li Wei², Ji Yang^{1, †,}

Schematic of experimental setup for rubidium spin noise spectrum measurement. Random fluctuation of the FR signal is detected by a balanced photodiode bridge and an FPGA-based DAC.