Imaging of Trapped Ions with a Microfabricated Optic for Quantum Information Processing
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Trapped ions are a leading system for realizing quantum information processing (QIP). Most of the technologies required for implementing large-scale trapped-ion QIP have been demonstrated, with one key exception: a massively parallel ion-photon interconnect. Arrays of microfabricated phase Fresnel lenses (PFL) are a promising interconnect solution that is readily integrated with ion trap arrays for large-scale QIP. Here we show the first imaging of trapped ions with a microfabricated in-vacuum PFL, demonstrating performance suitable for scalable QIP. A single ion fluorescence collection efficiency of 4.2ᱮ5% was observed. The depth of focus for the imaging system was 19.4Ხ4??孠and the field of view was 140Ჰ??孮 Our approach also provides an integrated solution for high-efficiency optical coupling in neutral atom and solid-state QIP architectures.
Physical Review Letters
© 2011 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Photonics, Optoelectronics and Optical Communications
Quantum Information, Computation and Communication