Abstract
The high resolution far infrared absorption spectrum of IBr was recorded with a Fourier transform spectrometer. The fundamental 1-0 vibration-rotation band and the 2-1 and 3-2 hot bands were recorded at a resolution of 0.001 25 cm(-1). The infrared continuum was provided by synchrotron radiation emission from the Max-I storage ring. For high resolution spectroscopy at 250 cm(-1) synchrotron radiation is about 5 times brighter than a conventional infrared glower. This increase in flux at the detector resulted in a corresponding increase in the signal-to-noise ratio and a much improved infrared spectrum.
Original language | English |
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Pages (from-to) | 137-144 |
Number of pages | 8 |
Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
Volume | 93 |
Issue number | 1 |
Publication status | Published - Jan 1998 |
Keywords
- FREE-JET EXPANSION
- LASER SPECTROSCOPY
- ISOTOPE DEPENDENCE
- SPECTRUM
- TRANSITION
- BRF
- SYSTEM
- STATES
- BRCL