Double Resonance Rotational Spectroscopy of Weakly Bound Ionic Complexes: The Case of Floppy CH_{3}
Phys Rev Lett
; 121(14): 143001, 2018 Oct 05.
Article
in En
| MEDLINE
| ID: mdl-30339424
ABSTRACT
A novel rotational spectroscopy method applicable to ions stored in cold traps is presented. In a double resonance scheme, rotational excitation is followed by vibrational excitation into a dissociative resonance. Its general applicability is demonstrated for the CH_{3}^{+}-He complex, which undergoes predissociation through its C-H stretching modes ν_{1} and ν_{3}. High resolution rotational transitions are recorded for this symmetric top, and small unexpected splittings are resolved for K=1. Advantages and potential future applications of this new approach are discussed.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2018
Document type:
Article
Affiliation country:
Germany