Radiative cooling of C7-
Artikel i vetenskaplig tidskrift, 2014

The spontaneous and photo-induced neutralization of C_7- produced in a laser ablation source was measured in an electrostatic storage ring. The measurements provide three independent determinations of the radiative cooling of the ions, based on the short time spontaneous decay and on the integrated amplitude and the shape of the photo-induced neutralization signal. The amplitude of the photo-induced signal was measured between 0.5 ms and 35 ms and found to depend on photon wavelength and ion storage time. All three signals can be reproduced with identical thermal IR radiative cooling rates with oscillator strengths equal to theoretical predictions. In addition, the measurements provide the excitation energy distribution.

Carbon clusters

radiative cooling

Författare

Kaveh Najafian

Göteborgs universitet

Maria Susanne Pettersson

Göteborgs universitet

Bertil Dynefors

Chalmers, Teknisk fysik

Haruo Shiromaru

Tokyo Metropolitan University

Jun Matsumoto

Tokyo Metropolitan University

H Tanuma

Tokyo Metropolitan University

T Furukawa

Tokyo Metropolitan University

Toshiyoki Azuma

RIKEN

Klavs Hansen

Göteborgs universitet

Journal of Chemical Physics

0021-9606 (ISSN) 1089-7690 (eISSN)

Vol. 140 artikel nr 104311- 104311

Ämneskategorier

Fysikalisk kemi

Atom- och molekylfysik och optik

DOI

10.1063/1.4867499

PubMed

24628173