title: High sensitive trap loss spectroscopic detection of the lowest vibrational levels of ultracold molecules.
abstract: We present a controllable three-dimensional fluorescence modulation technique for the high sensitive trap loss detection of ultracold molecules. The lowest vibrational levels (v = 0 and 1) of the pure long-range state 0(-)(g) (6S(1/2) + 6P(3/2)) of a cesium molecule are detected directly with high rotational resolution. Our technique proved to be a robust tool for effectively improving the detection sensitivity of trap loss spectroscopy.
authors.affiliation: State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan, 030006, China.
authors.forename: Jizhou
authors.initials: J
authors.lastname: Wu
authors.forename: Jie
authors.initials: J
authors.lastname: Ma
authors.forename: Yichi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yuqing
authors.initials: Y
authors.lastname: Li
authors.forename: Lirong
authors.initials: L
authors.lastname: Wang
authors.forename: Yanting
authors.initials: Y
authors.lastname: Zhao
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.forename: Liantuan
authors.initials: L
authors.lastname: Xiao
authors.forename: Suotang
authors.initials: S
authors.lastname: Jia