| Autor: |
Rayman, M. D., Aminoff, C. G., Hall, J. L. |
| Zdroj: |
Journal of the Optical Society of America B: Optical Physics; April 1989, Vol. 6 Issue: 4 p539-549, 11p |
| Abstrakt: |
Based on an efficient (30%), broadband (~3.5-GHz) electro-optic modulator producing rf optical sidebands locked to a stable cavity, we can scan a tunable dye laser under computer control with frequency-synthesizer precision. Cavity drift is suppressed in software by using a strong feature in the spectrum for stabilization. Mercury isotope shifts (546 nm 6^3P_2 ? 7^3S_1) have been measured with a reproducibility of ~50 kHz. This accuracy of ~1/300 of the linewidth illustrates the power of the technique. Derived hyperfine-structure constants are compared with previous atomic-beam data where available. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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