Absolute Cooling Rates of Freely Decaying Fullerenes
(2009) In Physical Review Letters 103(14).- Abstract
- The cooling rates of C-60(-) have been measured in an electrostatic storage ring between several hundred mu s and several tens of ms with one-photon laser excitation. The absolute energy scale is established by the photon energy, and the cooling time interval is derived from the nonexponential decay of the ensemble of hot molecules. The energy decreases due to the combined action of depletion and thermal emission of IR photons with a total energy loss rate that varies inversely proportional to time, 0.9 eV/t. The radiative component decreases from a few hundred eV/s at submillisecond time scales to several tens of eV/s at 20 ms and confirms that the crossover from depletion to predominantly radiative cooling occurs around 5 ms. The method... (More)
- The cooling rates of C-60(-) have been measured in an electrostatic storage ring between several hundred mu s and several tens of ms with one-photon laser excitation. The absolute energy scale is established by the photon energy, and the cooling time interval is derived from the nonexponential decay of the ensemble of hot molecules. The energy decreases due to the combined action of depletion and thermal emission of IR photons with a total energy loss rate that varies inversely proportional to time, 0.9 eV/t. The radiative component decreases from a few hundred eV/s at submillisecond time scales to several tens of eV/s at 20 ms and confirms that the crossover from depletion to predominantly radiative cooling occurs around 5 ms. The method is applicable to any large molecule or cluster which decays spontaneously, irrespective of the specific decay channel. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1489362
- author
- Sunden, A. E. K. ; Goto, M. ; Matsumoto, J. ; Shiromaru, H. ; Tanuma, H. ; Azuma, T. ; Andersen, J. U. ; Canton, Sophie LU and Hansen, K.
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 103
- issue
- 14
- publisher
- American Physical Society
- external identifiers
-
- wos:000270458800019
- scopus:70349761466
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.103.143001
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- 64880a7a-cabf-44bb-ac7f-6a0989388663 (old id 1489362)
- date added to LUP
- 2016-04-01 11:56:06
- date last changed
- 2022-03-20 21:06:26
@article{64880a7a-cabf-44bb-ac7f-6a0989388663, abstract = {{The cooling rates of C-60(-) have been measured in an electrostatic storage ring between several hundred mu s and several tens of ms with one-photon laser excitation. The absolute energy scale is established by the photon energy, and the cooling time interval is derived from the nonexponential decay of the ensemble of hot molecules. The energy decreases due to the combined action of depletion and thermal emission of IR photons with a total energy loss rate that varies inversely proportional to time, 0.9 eV/t. The radiative component decreases from a few hundred eV/s at submillisecond time scales to several tens of eV/s at 20 ms and confirms that the crossover from depletion to predominantly radiative cooling occurs around 5 ms. The method is applicable to any large molecule or cluster which decays spontaneously, irrespective of the specific decay channel.}}, author = {{Sunden, A. E. K. and Goto, M. and Matsumoto, J. and Shiromaru, H. and Tanuma, H. and Azuma, T. and Andersen, J. U. and Canton, Sophie and Hansen, K.}}, issn = {{1079-7114}}, language = {{eng}}, number = {{14}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Absolute Cooling Rates of Freely Decaying Fullerenes}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.103.143001}}, doi = {{10.1103/PhysRevLett.103.143001}}, volume = {{103}}, year = {{2009}}, }