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.
Original language | English |
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Pages (from-to) | 420-421 |
Number of pages | 2 |
Journal | CPEM Digest (Conference on Precision Electromagnetic Measurements) |
State | Published - 2002 |
Event | 2002 Conference on Precision Electromagnetic Measurements - Ottawa, Ont., Canada Duration: 16 Jun 2002 → 21 Jun 2002 |