Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

AIP conference proceedings

Imaging trapped ions with an integrated microfabricated optic

Erik W. Streed, B. G. Norton, Till J. Weinhold, D. Kielpinski, Timothy C. Ralph, Ping Koy Lam

Published Jan 1, 2011• 0 citations
Publisher

Abstract

We have integrated a microfabricated phase Fresnel lens (PFL) with an ion trap and used it to image a 174Yb+ ion. The observed collection efficiency was 4.1± 1.3%, in agreement with a predicted performance of 4.6% based on optical characterization and suitable for use in quantum computing. A maximum signal to background scatter noise of 23±4 was measured near saturation intensity (s = 0.7). The depth of focus was 11 μm and the field of view in excess of 100 μm across.

DOI
10.1063/1.3630177

Related papers

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

Erik W. Streed, B. G. Norton, Andreas Jechow +2 more

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 4.2±1.5% was observed. The depth of focus for the imaging system was 19.4±2.4 μm and the field of view was 140±20 μm. Our approach also provides an integrated solution for high-efficiency optical coupling in neutral atom and solid-state QIP architectures.

arXiv:1006.4192•Physical Review Letters•Jan 5, 2011•88 citations

Imaging of trapped ions with wavelength-scale resolution using a microfabricated optic

Andreas Jechow, Erik W. Streed, B. G. Norton +1 more

The authors have successfully demonstrated trapping and laser cooling of ions in close proximity to an integrated microfabricated PFL, with ion sizes on the order of the wavelength of the scattered light. To their knowledge this represents the highest image resolution achieved with trapped ions so far. Furthermore, PFLs has the advantage of scalability as well as mass producibility.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•May 1, 2011•0 citations

Optical Characterization Of A Phase Fresnel Lens For Trapped Ion Quantum Computing

B. G. Norton, Erik W. Streed, Justin James Chapman +1 more

To efficiently collect light from ions in a trapped ion quantum computer, a lens with a high numerical aperture is advantageous. Using phase Fresnel lenses with large working distances and high numerical apertures, we can couple a large fraction of the fluorescence from an ion into a single optical propagation mode (TEM00). We have optically profiled a phase Fresnel lens with a numerical aperture of 0.64 and a focal length of 3 mm. A 350ᱵ nm beam waist and a beam quality M2 of 1.08ᰮ05 was measured near the diffraction limit.

•Jan 1, 2009•0 citations

Scalable imaging of trapped ions

Erik W. Streed, Andreas Jechow, B. G. Norton +2 more

Wavelength scale imaging of trapped Ytterbium ions was demonstrated using a microfabricated phase Fresnel lens. Near diffraction-limited spot sizes of below 440 nm (FWHM) were achieved, an important precursor to efficient single-mode coupling.

International Conference on Quantum Information•Jan 1, 2011•0 citations

High-Resolution Imaging of Trapped Ions for Scalable Quantum Computing

Andreas Jechow, Erik W. Streed, B. G. Norton +2 more

A microfabricated phase Fresnel lens was used to image trapped ytterbium ions. This scalable architecture yields ion spot sizes of 440nm (FWHM), the highest imaging resolution ever achieved with an atom in free space.

•Jan 1, 2011•0 citations

Large-scale quantum computing with phase Fresnel lenses

Erik W. Streed, B. G. Norton, Justin James Chapman +1 more

Efficient ion-photon coupling is an important component for large-scale ion-trap quantum computing. We propose that phase Fresnel lenses (PFLs) are a favorable optical coupling technology to match with multi-zone ion traps. Both are scalable technologies based on conventional micro-fabrication techniques. Large numerical aperture (NA) PFLs can reduce the readout time for ion qubits and provide good coherent coupling to a single optical mode. From optical characterization of a suitable PFL we predict a coherent coupling efficiency of >0.64%, twice the best experimental efficiency achieved to date. In addition, high NA entanglement fidelity limits can be removed by optical filtering.

•Jan 1, 2009•0 citations
We have integrated a microfabricated phase Fresnel lens (PFL) with an ion trap and used it to image a 174Yb+ ion. The observed collection efficiency was 4.1± 1.3%, in agreement with a predicted performance of 4.6% based on optical characterization and suitable for use in quantum computing. A maximum signal to background scatter noise of 23±4 was measured near saturation intensity (s = 0.7). The depth of focus was 11 μm and the field of view in excess of 100 μm across.
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 4.2±1.5% was observed. The depth of focus for the imaging system was 19.4±2.4 μm and the field of view was 140±20 μm. Our approach also provides an integrated solution for high-efficiency optical coupling in neutral atom and solid-state QIP architectures.
To efficiently collect light from ions in a trapped ion quantum computer, a lens with a high numerical aperture is advantageous. Using phase Fresnel lenses with large working distances and high numerical apertures, we can couple a large fraction of the fluorescence from an ion into a single optical propagation mode (TEM00). We have optically profiled a phase Fresnel lens with a numerical aperture of 0.64 and a focal length of 3 mm. A 350ᱵ nm beam waist and a beam quality M2 of 1.08ᰮ05 was measured near the diffraction limit.
Efficient ion-photon coupling is an important component for large-scale ion-trap quantum computing. We propose that phase Fresnel lenses (PFLs) are a favorable optical coupling technology to match with multi-zone ion traps. Both are scalable technologies based on conventional micro-fabrication techniques. Large numerical aperture (NA) PFLs can reduce the readout time for ion qubits and provide good coherent coupling to a single optical mode. From optical characterization of a suitable PFL we predict a coherent coupling efficiency of >0.64%, twice the best experimental efficiency achieved to date. In addition, high NA entanglement fidelity limits can be removed by optical filtering.