Surface-electrode ion trap with integrated light source
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Chuang_Surface-electrode.pdf
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738.97 KB
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Author(s)
Kim, Tony Hyun
Herskind, Peter F.
Chuang, Isaac L.
Date Issued
May 2011
Journal
Applied Physics Letters
Publisher
American Institute of Physics (AIP)
Citation
Kim, Tony Hyun, Peter F. Herskind, and Isaac L. Chuang. “Surface-Electrode Ion Trap with Integrated Light Source.” Appl. Phys. Lett. 98, no. 21 (2011): 214103. © 2011 American Institute of Physics
Version
Final published version
Abstract
An atomic ion is trapped at the tip of a single-mode optical fiber in a cryogenic (8 K) surface-electrode ion trap. The fiber serves as an integrated source of laser light, which drives the quadrupolequbit transition of [superscript 88]Sr[superscript +]. Through in situ translation of the nodal point of the trapping field, the Gaussian beam profile of the fiber output is imaged, and the fiber-ion displacement, in units of the mode waist at the ion, is optimized to within 0.13 ± 0.10 of the mode center despite an initial offset of 3.30 ± 0.10. Fiber-induced charging by 125 μW of 674 nm light is observed to be ~10 V/m at an ion height of 670 μm, with charging and discharging time constants of 1.6 ± 0.3 s and 4.7 ± 0.6 s, respectively. This work is of importance to large-scale, ion-based quantum information processing, where optics integration in surface-electrode designs may be a crucial enabling technology.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT-Harvard Center for Ultracold Atoms
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1063/1.3593496
