Fast thermometry for trapped atoms using recoil-induced resonance
Fast thermometry for trapped atoms using recoil-induced resonance
复制标题
利用反冲引起的共振对被捕获的原子进行快速测温
DOI：
10.1088/1674-1056/24/9/093701
复制
发表时间：
2015
影响因子：
1.7
通讯作者：
Jia Suo-Tang
中科院分区：
文献类型：
--
作者：
Zhao Yan-Ting;Su Dian-Qiang;Ji Zhong-Hua;Zhang Hong-Shan;Xiao Lian-Tuan;Jia Suo-Tang
我们利用线宽在10 kHz量级的反冲感应共振(RIR)来演示超冷原子的快速测温。从理论上计算了RIR的吸收光谱，与实验结果符合得很好。由RIR光谱得到的超冷样品的温度为T=84±4.5μK，接近飞行时间吸收成像法测得的85μK。为了展示RIR在超冷原子测温中的快速测量优势，我们研究了超冷样品温度与俘获光束频率失谐的关系。该方法可用于光缔合动力学中分子平移温度的测定。
We have employed recoil-induced resonance (RIR) with linewidth on the order of 10 kHz to demonstrate the fast thermometry for ultracold atoms. We theoretically calculate the absorption spectrum of RIR which agrees well with the experimental results. The temperature of the ultracold sample derived from the RIR spectrum is T = 84±4.5 μK, which is close to 85 μK that measured by the method of time-of-flight absorption imaging. To exhibit the fast measurement advantage in applying RIR to the ultracold atom thermometry, we study the dependence of ultracold sample temperature on the trapping beam frequency detuning. This method can be applied to determine the translational temperature of molecules in photoassociation dynamics.