期刊
APPLIED PHYSICS B-LASERS AND OPTICS
卷 107, 期 4, 页码 907-912出版社
SPRINGER
DOI: 10.1007/s00340-011-4762-2
关键词
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资金
- MEXT Kakenhi Quantum Cybernetics Project [21104006]
- JSPS through its FIRST Program
- Grants-in-Aid for Scientific Research [21104006, 21102006, 21104001] Funding Source: KAKEN
We report a surface electrode trap with a relatively large trap depth (0.6-1.0 eV). The trap electrodes are formed by gold plating an alumina substrate. Calcium ions are trapped approximately 400 mu m above the trap surface. We demonstrate micromotion compensation based on parametric resonance for surface electrode traps. Unlike the conventional method based on radio-frequency (rf)-photon correlation in which the wave vector of the laser beam must have a component parallel to the micromotion to be detected, the proposed method is independent of the laser propagation direction. This enables the micromotion component normal to the electrode surface to be detected without increasing the scattered light.
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