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ID 116017
Author
Yoshii, Kazumichi Yokohama National University|Tokushima University KAKEN Search Researchers
Chen, Chaoyun Yokohama National University
Sakagami, Haruki Yokohama National University
Hong, Feng-Lei Yokohama National University
Content Type
Journal Article
Description
The hyperfine structure of the absorption lines of molecular iodine at 531 nm was measured using a low-cost, coin-sized light source with a laser linewidth at the megahertz level. The measured hyperfine splittings were found to be systematically smaller than those measured using a narrow-linewidth diode laser. The theoretical fit of the measured hyperfine splittings to a four-term Hamiltonian, including the electric quadrupole, spin-rotation, tensor spin-spin, and scalar spin-spin interactions, does not clarify the observed systematic deviation in the measurement, but instead results in deviated hyperfine constants from reliable literature values beyond the uncertainties. Therefore, the theoretical fit, which is usually used to validate the measurement, does not provide the validation function in the case of megahertz level laser linewidths.
Journal Title
OSA Continuum
ISSN
25787519
Publisher
OSA publishing
Volume
4
Issue
5
Start Page
1452
End Page
1460
Published Date
2021-04-26
Rights
© 2021 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Institute of Post-LED Photonics