Revisiting Iodine molecule: Laser spectroscopy in the 14600-14710 cm<sup>-1</sup> range.

POSTER

Abstract

In this work, we report the laser absorption spectroscopy of iodine gas in the range of 14600 to 14710 cm-1. This wavelength range is scanned using a narrow linewidth diode-laser whose frequency is actively measured using a calibrated wavelength meter. This allows us to provide an iodine atlas that contains almost 729 experimentally observed reference lines. For most lines, good agreement is found with a publication by Houssam Salami and Amanda J. Ross (2005), but we have observed new lines due to the high resolution of our laser. The new dataset can be useful as a reference for laser frequency calibration and stabilization.

*This work is supported by Grants 2018/06835-0, 2019/23510-0, 2019/10971-0 and 2021/04107-0, São Paulo Research Foundation (FAPESP). It is also supported by a grant (FA9550-20-1-0031) from the US Air Force office of scientific research.

Presenters

  • Marcos R Cardoso

    • Sao Carlos Institute of Physics at the University of Sao Paulo
    • Sao Carlos Institute of Physics at the USP

Authors

  • Manuel A Lefran Torres

    • Sao Carlos Institute of Physics at the University of Sao Paulo
    • Sao Carlos Institute of Physics at the USP

  • Marcos R Cardoso

    • Sao Carlos Institute of Physics at the University of Sao Paulo
    • Sao Carlos Institute of Physics at the USP

  • David Rodriguez Fernandez

    • Sao Carlos Institute of Physics at the University of Sao Paulo
    • Sao Carlos Institute of Physics at the USP

  • Luis Gustavo G Marcassa

    • University of Sao Paulo
    • Sao Carlos Institute of Physics at the University of Sao Paulo
    • Sao Carlos Institute of Physics at the USP