Fast thermometry for trapped atoms using recoil-induced resonance

Zhao Yan-Ting†, Su Dian-Qiang, Ji Zhong-Hua, Zhang Hong-Shan, Xiao Lian-Tuan, Jia Suo-Tang

Configuration of MOT and RIR. We choose one of the trapping beams ( x direction, σ ⁻ polarization) as the pump beam. θ is the angle between the pump beam and the probe beam. The polarization of the probe beam is σ ⁻, which is controlled by a λ /4 waveplate.