Thermal radiation of laser heated niobium clusters Nb{sub N}{sup +}, 8 ⩽ N ⩽ 22

Journal Article · Mon Jul 14 00:00:00 EDT 2014 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4885364· OSTI ID:22308773

Hansen, Klavs ^[1]; Li, Yejun; Kaydashev, Vladimir; Janssens, Ewald ^[2]

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1. Department of Physics, University of Gothenburg, 41296 Gothenburg (Sweden)
2. Laboratory of Solid State Physics and Magnetism, KU Leuven, B-3001 Leuven (Belgium)

The thermal radiation from small, laser heated, positively charged niobium clusters has been measured. The emitted power was determined by the quenching effect on the metastable decay, employing two different experimental protocols. The radiative power decreases slightly with cluster size and shows no strong size-to-size variations. The magnitude is 40–50 keV/s at the timescale of several microseconds, which is the measured crossover time from evaporative to radiative cooling.

• OSTI ID: 22308773
• Journal Information: Journal of Chemical Physics, Vol. 141, Issue 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DECAY
EMISSION
LASERS
NIOBIUM
NITROGEN IONS
QUENCHING
RADIATIVE COOLING
THERMAL RADIATION