Absolute frequencies, linewidths, and hyperfine structures of iodine transitions near the dissociation limit (523 to 498 nm)

Author

Jones, R.J. ; Wang-Yau Cheng ; Lisheng Chen ; Holman, K.W. ; Hall, J.L. ; Jun Ye

Author_Institution

Joint Inst. for Lab. Astrophys., Nat. Inst. of Stand. & Technol., Boulder, CO, USA

fYear

2002

fDate

16-21 June 2002

Firstpage

420

Lastpage

421

Abstract

A widely tunable and high-resolution spectrometer based on a frequency doubled Ti:sapphire laser is used to explore sub-Doppler transitions of iodine molecules in the wavelength range of 523-498 nm. The wavelength-dependence of the hyperfine transition linewidth of iodine is mapped out in this region. Towards the dissociation limit near 500 nm, the hyperfine-resolved patterns are found to be largely modified. A femtosecond optical comb is used to determine the absolute frequency of the 514.7 nm optical standard with more than a 100-fold improvement in precision.

Keywords

dissociation; frequency stability; frequency standards; high-speed optical techniques; hyperfine structure; iodine; optical tuning; spectral line breadth; visible spectra; 498 to 523 nm; 514.7 nm; Al/sub 2/O/sub 3/:Ti; I/sub 2/; absolute frequencies; dissociation limit; femtosecond optical comb; frequency doubled Ti:sapphire laser; hyperfine structures; hyperfine transition linewidth wavelength-dependence; hyperfine-resolved patterns; iodine molecules; iodine transitions; optical standard absolute frequency; sub-Doppler transitions; tunable high-resolution spectrometer; wavelength range; Frequency; Laser noise; Laser transitions; Optical harmonic generation; Optical sensors; Particle beam optics; Spectroscopy; Stability; Tunable circuits and devices; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on

Conference_Location

Ottawa, Ontario, Canada

Print_ISBN

0-7803-7242-5

Type

conf

DOI

10.1109/CPEM.2002.1034899

Filename

1034899