dorsal/arxiv
View SchemaEfficient Photoionization-Loading of Trapped Cadmium Ions with Ultrafast Pulses
| Authors | L. Deslauriers, M. Acton, B. B. Blinov, K. -A. Brickman, P. C. Haljan, W. K. Hensinger, D. Hucul, S. Katnik, R. N. Kohn, Jr., P. J. Lee, M. J. Madsen, P. Maunz, S. Olmschenk, D. L. Moehring, D. Stick, J. Sterk, M. Yeo, K. C. Younge, C. Monroe |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0608043 |
| URL | https://arxiv.org/abs/quant-ph/0608043 |
| DOI | 10.1103/PhysRevA.74.063421 |
Abstract
Atomic cadmium ions are loaded into radiofrequency ion traps by photoionization of atoms in a cadmium vapor with ultrafast laser pulses. The photoionization is driven through an intermediate atomic resonance with a frequency-quadrupled mode-locked Ti:Sapphire laser that produces pulses of either 100 fsec or 1 psec duration at a central wavelength of 229 nm. The large bandwidth of the pulses photoionizes all velocity classes of the Cd vapor, resulting in high loading efficiencies compared to previous ion trap loading techniques. Measured loading rates are compared with a simple theoretical model, and we conclude that this technique can potentially ionize every atom traversing the laser beam within the trapping volume. This may allow the operation of ion traps with lower levels of background pressures and less trap electrode surface contamination. The technique and laser system reported here should be applicable to loading most laser-cooled ion species.
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"abstract": "Atomic cadmium ions are loaded into radiofrequency ion traps by\nphotoionization of atoms in a cadmium vapor with ultrafast laser pulses. The\nphotoionization is driven through an intermediate atomic resonance with a\nfrequency-quadrupled mode-locked Ti:Sapphire laser that produces pulses of\neither 100 fsec or 1 psec duration at a central wavelength of 229 nm. The large\nbandwidth of the pulses photoionizes all velocity classes of the Cd vapor,\nresulting in high loading efficiencies compared to previous ion trap loading\ntechniques. Measured loading rates are compared with a simple theoretical\nmodel, and we conclude that this technique can potentially ionize every atom\ntraversing the laser beam within the trapping volume. This may allow the\noperation of ion traps with lower levels of background pressures and less trap\nelectrode surface contamination. The technique and laser system reported here\nshould be applicable to loading most laser-cooled ion species.",
"arxiv_id": "quant-ph/0608043",
"authors": [
"L. Deslauriers",
"M. Acton",
"B. B. Blinov",
"K. -A. Brickman",
"P. C. Haljan",
"W. K. Hensinger",
"D. Hucul",
"S. Katnik",
"R. N. Kohn, Jr.",
"P. J. Lee",
"M. J. Madsen",
"P. Maunz",
"S. Olmschenk",
"D. L. Moehring",
"D. Stick",
"J. Sterk",
"M. Yeo",
"K. C. Younge",
"C. Monroe"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.74.063421",
"title": "Efficient Photoionization-Loading of Trapped Cadmium Ions with Ultrafast Pulses",
"url": "https://arxiv.org/abs/quant-ph/0608043"
},
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