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Cooling dynamics of photoexcited C6(-) and C6H(-)
- Source :
- Physical review letters. 112(18)
- Publication Year :
- 2013
-
Abstract
- We report conclusive evidence of an efficient cooling mechanism via the electronic radiative transitions of hot small molecular anions isolated in vacuum. We stored C6(-) and C6H(-) in an ion storage ring and observed laser-induced electron detachment with delays up to several milliseconds. The terminal hydrogen atom caused a drastic change in the decay profiles. The decay of photoexcited C6H(-) is slow and nonexponential, which can be explained by depletion cooling, whereas that for C6(-) occurs extremely fast, on a time scale below 0.1 ms and can only be explained by electronic radiative cooling via low-lying electronic excited states.
Details
- ISSN :
- 10797114
- Volume :
- 112
- Issue :
- 18
- Database :
- OpenAIRE
- Journal :
- Physical review letters
- Accession number :
- edsair.pmid..........9d6c65d92a9dad39cc1c952f58e94952