Related Experiment Video
Updated: Jul 12, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
High resolution feshbach spectroscopy of cesium
1Department of Physics, Stanford University, Stanford, California 94305-4060, USA.
Abstract:
We measure high-resolution Feshbach resonance spectra for ultracold cesium atoms colliding in different hyperfine and magnetic sublevels. More than 25 resonances are observed for magnetic fields up to 230 G and their positions are measured with an accuracy down to 0.03 G. From these spectra several ground-state molecular interaction parameters can be extracted with sufficient accuracy to permit for the first time an unambiguous and accurate determination of cesium's ultracold collision properties [P. J. Leo, C. J. Williams, and P. S. Julienne, following Letter, Phys. Rev. Lett. 85, 2721 (2000)].
Related Concept Videos
High-Resolution Mass Spectrometry (HRMS)
Atomic Emission Spectroscopy: Overview
Atomic Emission Spectroscopy: Instrumentation
Atomic Emission Spectroscopy: Interference
Atomic Emission Spectroscopy: Lab
Atomic Fluorescence Spectroscopy

