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Updated: Aug 22, 2025

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
High-Resolution Laser Spectroscopy of a Functionalized Aromatic Molecule
Benjamin L Augenbraun1,2, Sean Burchesky1,2, Andrew Winnicki1,2
1Department of Physics, Harvard University, Cambridge, Massachusetts02138, United States.
Abstract:
We present a high-resolution laser spectroscopic study of the Ã2B2-X̃2A1 and B̃2B1-X̃2A1 transitions of calcium(I) phenoxide, CaOPh (CaOC6H5). The rotationally resolved band systems are analyzed using an effective Hamiltonian model and are accurately modeled as independent perpendicular (b- or c-type) transitions. The structure of calcium monophenoxide is compared to previously observed Ca-containing radicals, and implications for direct laser cooling are discussed. This work demonstrates that functionalization of aromatic molecules with optical cycling centers can preserve many of the properties needed for laser-based control.
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