Imaging of Trapped Ions with a Microfabricated Optic for Quantum Information Processing

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Streed, Erik W
Norton, Benjamin G
Jechow, Andreas
Weinhold, Till J
Kielpinski, David
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2011
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Abstract

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.

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Physical Review Letters
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106
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© 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.
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Mathematical sciences
Physical sciences
Photonics, optoelectronics and optical communications
Quantum information, computation and communication
Engineering
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