摘要
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.
原文 | ???core.languages.en_GB??? |
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頁(從 - 到) | 420-421 |
頁數 | 2 |
期刊 | CPEM Digest (Conference on Precision Electromagnetic Measurements) |
出版狀態 | 已出版 - 2002 |
事件 | 2002 Conference on Precision Electromagnetic Measurements - Ottawa, Ont., Canada 持續時間: 16 6月 2002 → 21 6月 2002 |