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Laser Spectroscopy of Aromatic Molecules with Optical Cycling Centers: Strontium(I) Phenoxides

[Image: see text] We report the production and spectroscopic characterization of strontium(I) phenoxide (SrOC(6)H(5) or SrOPh) and variants featuring electron-withdrawing groups designed to suppress vibrational excitation during spontaneous emission from the electronically excited state. Optical cyc...

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Autores principales: Lao, Guanming, Zhu, Guo-Zhu, Dickerson, Claire E., Augenbraun, Benjamin L., Alexandrova, Anastassia N., Caram, Justin R., Hudson, Eric R., Campbell, Wesley C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9720742/
https://www.ncbi.nlm.nih.gov/pubmed/36413655
http://dx.doi.org/10.1021/acs.jpclett.2c03040
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author Lao, Guanming
Zhu, Guo-Zhu
Dickerson, Claire E.
Augenbraun, Benjamin L.
Alexandrova, Anastassia N.
Caram, Justin R.
Hudson, Eric R.
Campbell, Wesley C.
author_facet Lao, Guanming
Zhu, Guo-Zhu
Dickerson, Claire E.
Augenbraun, Benjamin L.
Alexandrova, Anastassia N.
Caram, Justin R.
Hudson, Eric R.
Campbell, Wesley C.
author_sort Lao, Guanming
collection PubMed
description [Image: see text] We report the production and spectroscopic characterization of strontium(I) phenoxide (SrOC(6)H(5) or SrOPh) and variants featuring electron-withdrawing groups designed to suppress vibrational excitation during spontaneous emission from the electronically excited state. Optical cycling closure of these species, which is the decoupling of the vibrational state changes from spontaneous optical decay, is found by dispersed laser-induced fluorescence spectroscopy to be high, in accordance with theoretical predictions. A high-resolution, rotationally resolved laser excitation spectrum is recorded for SrOPh, allowing the estimation of spectroscopic constants and identification of candidate optical cycling transitions for future work. The results confirm the promise of strontium phenoxides for laser cooling and quantum state detection at the single-molecule level.
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spelling pubmed-97207422022-12-06 Laser Spectroscopy of Aromatic Molecules with Optical Cycling Centers: Strontium(I) Phenoxides Lao, Guanming Zhu, Guo-Zhu Dickerson, Claire E. Augenbraun, Benjamin L. Alexandrova, Anastassia N. Caram, Justin R. Hudson, Eric R. Campbell, Wesley C. J Phys Chem Lett [Image: see text] We report the production and spectroscopic characterization of strontium(I) phenoxide (SrOC(6)H(5) or SrOPh) and variants featuring electron-withdrawing groups designed to suppress vibrational excitation during spontaneous emission from the electronically excited state. Optical cycling closure of these species, which is the decoupling of the vibrational state changes from spontaneous optical decay, is found by dispersed laser-induced fluorescence spectroscopy to be high, in accordance with theoretical predictions. A high-resolution, rotationally resolved laser excitation spectrum is recorded for SrOPh, allowing the estimation of spectroscopic constants and identification of candidate optical cycling transitions for future work. The results confirm the promise of strontium phenoxides for laser cooling and quantum state detection at the single-molecule level. American Chemical Society 2022-11-22 2022-12-01 /pmc/articles/PMC9720742/ /pubmed/36413655 http://dx.doi.org/10.1021/acs.jpclett.2c03040 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Lao, Guanming
Zhu, Guo-Zhu
Dickerson, Claire E.
Augenbraun, Benjamin L.
Alexandrova, Anastassia N.
Caram, Justin R.
Hudson, Eric R.
Campbell, Wesley C.
Laser Spectroscopy of Aromatic Molecules with Optical Cycling Centers: Strontium(I) Phenoxides
title Laser Spectroscopy of Aromatic Molecules with Optical Cycling Centers: Strontium(I) Phenoxides
title_full Laser Spectroscopy of Aromatic Molecules with Optical Cycling Centers: Strontium(I) Phenoxides
title_fullStr Laser Spectroscopy of Aromatic Molecules with Optical Cycling Centers: Strontium(I) Phenoxides
title_full_unstemmed Laser Spectroscopy of Aromatic Molecules with Optical Cycling Centers: Strontium(I) Phenoxides
title_short Laser Spectroscopy of Aromatic Molecules with Optical Cycling Centers: Strontium(I) Phenoxides
title_sort laser spectroscopy of aromatic molecules with optical cycling centers: strontium(i) phenoxides
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9720742/
https://www.ncbi.nlm.nih.gov/pubmed/36413655
http://dx.doi.org/10.1021/acs.jpclett.2c03040
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