Accurate prediction and measurement of vibronic branching ratios for laser cooling linear polyatomic molecules
| Autor: | Zack Lasner, John M. Doyle, Chaoqun Zhang, Benjamin Augenbraun, Nathaniel B. Vilas, Lan Cheng |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Chemical Physics (physics.chem-ph)
Range (particle radiation) Materials science Atomic Physics (physics.atom-ph) Polyatomic ion General Physics and Astronomy FOS: Physical sciences Branching (polymer chemistry) Molecular physics Physics - Atomic Physics Physics - Chemical Physics Laser cooling Molecule Sensitivity (control systems) Physical and Theoretical Chemistry Order of magnitude |
| Zdroj: | The Journal of chemical physics. 155(9) |
| ISSN: | 1089-7690 |
| Popis: | We report a generally applicable computational and experimental approach to determine vibronic branching ratios in linear polyatomic molecules to the $10^{-5}$ level, including for nominally symmetry forbidden transitions. These methods are demonstrated in CaOH and YbOH, showing approximately two orders of magnitude improved sensitivity compared with the previous state of the art. Knowledge of branching ratios at this level is needed for the successful deep laser cooling of a broad range of molecular species. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|