Journal
PHYSICAL REVIEW A
Volume 98, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.98.063434
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Funding
- KAKENHI [JP16J04833, JP17H02937, 26220607]
- Grants-in-Aid for Scientific Research [26220607] Funding Source: KAKEN
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Delayed electron detachment yields of C-4(-) and C-6(-) induced by photoexcitation in an electrostatic ion storage ring were measured as functions of excitation energies and laser firing times, allowing for a mapping of their radiative cooling in a wide energy range. The energy window concept and discrimination of one- and two-photon absorption are critical in understanding the obtained results. The experimentally obtained electronic and vibrational cooling rates were consistent with a simulation based on detailed-balance theory. The even-odd alternation of vibrational cooling rates, predicted from IR intensities, was also examined. We found that the larger anion cools faster, with no indication of an even-odd alternation.
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