On the origin of the dip in the KrF laser gain spectrum

M. J. Shaw, E. J. Divall, G. J. Hirst, C. J. Hooker, J. M D Lister, I. N. Ross, A. Kvaran, K. Osvay

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

High-resolution spectra of KrF (B-X) amplified spontaneous emission from various discharge-pumped and electron-beam-pumped KrF lasers have been analyzed. An underlying structured absorption spectrum has been discovered with a well-resolved peak at 248.91 nm. The absorption coefficient of this peak was found to vary in exact proportion to the peak laser gain coefficient but was independent of laser gas purity. We suggest that the absorption arises internally within the KrF molecule and is due to transitions from the B state to a higher-lying Rydberg state. This hypothesis was tested by simulating the absorption spectrum from KiF*(B) to a weakly repulsive state dissociating to Kr*(3P1)+F(2F3/2). A good agreement was obtained between simulated and experimental absorption spectra.

Original languageEnglish
Pages (from-to)1815-1824
Number of pages10
JournalThe Journal of Chemical Physics
Volume105
Issue number5
Publication statusPublished - Aug 1 1996

Fingerprint

Absorption spectra
absorption spectra
Lasers
Rydberg states
lasers
Gas lasers
gas lasers
Spontaneous emission
spontaneous emission
Electron beams
absorptivity
proportion
purity
electron beams
Molecules
high resolution
coefficients
molecules

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Shaw, M. J., Divall, E. J., Hirst, G. J., Hooker, C. J., Lister, J. M. D., Ross, I. N., ... Osvay, K. (1996). On the origin of the dip in the KrF laser gain spectrum. The Journal of Chemical Physics, 105(5), 1815-1824.

On the origin of the dip in the KrF laser gain spectrum. / Shaw, M. J.; Divall, E. J.; Hirst, G. J.; Hooker, C. J.; Lister, J. M D; Ross, I. N.; Kvaran, A.; Osvay, K.

In: The Journal of Chemical Physics, Vol. 105, No. 5, 01.08.1996, p. 1815-1824.

Research output: Contribution to journalArticle

Shaw, MJ, Divall, EJ, Hirst, GJ, Hooker, CJ, Lister, JMD, Ross, IN, Kvaran, A & Osvay, K 1996, 'On the origin of the dip in the KrF laser gain spectrum', The Journal of Chemical Physics, vol. 105, no. 5, pp. 1815-1824.
Shaw MJ, Divall EJ, Hirst GJ, Hooker CJ, Lister JMD, Ross IN et al. On the origin of the dip in the KrF laser gain spectrum. The Journal of Chemical Physics. 1996 Aug 1;105(5):1815-1824.
Shaw, M. J. ; Divall, E. J. ; Hirst, G. J. ; Hooker, C. J. ; Lister, J. M D ; Ross, I. N. ; Kvaran, A. ; Osvay, K. / On the origin of the dip in the KrF laser gain spectrum. In: The Journal of Chemical Physics. 1996 ; Vol. 105, No. 5. pp. 1815-1824.
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