Sub-Doppler molecular-iodine transitions near the dissociation limit (523-498 nm)

Wang Yau Cheng, Lisheng Chen, Tai Hyun Yoon, John L. Hall, Jun Ye

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A widely tunable and high-resolution spectrometer based on a frequency-doubled Ti:sapphire laser was used to explore sub-Doppler transitions of iodine molecules in the wavelength range 523-498 nm. The wavelength dependence of the hyperfine transition linewidth of iodine was mapped out in this region, and the narrowest linewidth was ∼4 kHz near 508 nm. The hyperfine-resolved patterns were found to be largely modified toward the dissociation limit. The observed excellent signal-to-noise ratio should lead to high-quality optical frequency standards that are better than those of the popular 532-nm system.

Original languageEnglish
Pages (from-to)571-573
Number of pages3
JournalOptics Letters
Issue number8
Publication statusPublished - 2002 Apr 15


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Cheng, W. Y., Chen, L., Yoon, T. H., Hall, J. L., & Ye, J. (2002). Sub-Doppler molecular-iodine transitions near the dissociation limit (523-498 nm). Optics Letters, 27(8), 571-573.