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A Dense Grid of Reference Iodine Lines for Optical Frequency Calibration in the Range 571–596 nm

Authors
Journal
Journal of Molecular Spectroscopy
0022-2852
Publisher
Elsevier
Publication Date
Volume
187
Issue
1
Identifiers
DOI: 10.1006/jmsp.1997.7480
Disciplines
  • Physics

Abstract

Abstract A high precision dense grid of reference lines in the hyperfine structure of the B–Xsystem of molecular iodine ( 127I 2) is presented. A simple parametrization has been derived, predicting the hyperfine line positions of the “ t” components for vibrational bands (13-1) up to (18-1) and rotational quantum numbers J= (9–140). The analysis in this paper is based on Doppler-free saturation spectroscopy spectra used for calibration of more than 100 new components in the hyperfine structure of 127I 2. The data presented contains a prediction (with 2 MHz accuracy) for the positions of 1584 “ t” components in the rotational structure of iodine, covering the wavelength interval 571–596 nm.

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