| Autor: |
John M. Doyle, Benjamin Augenbraun, Christian Hallas, Debayan Mitra, Louis Baum, Nathaniel B. Vilas, Shivam Raval |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Popis: |
We study optical cycling in the polar free radical calcium monohydroxide (CaOH) and establish an experimental path towards scattering $\ensuremath{\sim}{10}^{4}$ photons. We report rovibronic branching ratio measurements with precision at the $\ensuremath{\sim}{10}^{\ensuremath{-}4}$ level and observe weak symmetry-forbidden decays to bending modes with nonzero vibrational angular momentum. Calculations are in excellent agreement with these measurements and predict additional decay pathways. Additionally, we perform high-resolution spectroscopy of the $\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{X}{\phantom{\rule{1.0pt}{0ex}}}^{2}{\mathrm{\ensuremath{\Sigma}}}^{+}({12}^{0}0)$ and $\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{X}{\phantom{\rule{1.0pt}{0ex}}}^{2}{\mathrm{\ensuremath{\Sigma}}}^{+}({12}^{2}0)$ hybrid vibrational states of CaOH. These advances establish a path towards radiative slowing, three-dimensional magneto-optical trapping, and sub-Doppler cooling of CaOH. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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