Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...263..440b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 263, no. 1-2, p. 440-442.
Astronomy and Astrophysics
Astrophysics
10
Arsenic, Far Ultraviolet Radiation, Laser Spectroscopy, Radiative Lifetime, Resonance Lines, Absorption Spectroscopy, Molecular Energy Levels, Oscillator Strengths
Scientific paper
Inspired by the recent Hubble Space Telescope first observations of arsenic in an astrophysical object, we have determined the natural radiative lifetime of the upper states of two of the three resonance lines of As I. Short pulse laser excitation at 193.7 nm and 197.2 nm was achieved using different nonlinear optical mixing schemes. Using time-resolved spectroscopy, we obtain tau(4P2 5s 4P3/2) = 4.3(5) ns and tau(4p2 5s 4P1/2) = 4.5(5) ns, yielding the absorption oscillator strengths fabs (193.7 nm) = 0.123(17) and fabs (197.2 nm) = 0.059(8).
Bengtsson G. J.
Berzinsh Uldis
Larsson Jonas
Svanberg Sune
No associations
LandOfFree
Determination of radiative lifetimes in neutral arsenic using time-resolved laser spectroscopy in the VUV region does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Determination of radiative lifetimes in neutral arsenic using time-resolved laser spectroscopy in the VUV region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of radiative lifetimes in neutral arsenic using time-resolved laser spectroscopy in the VUV region will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1761920