Imaging trapped ions with a microfabricated lens for quantum information processing
arXiv:1006.4192 · doi:10.1103/PhysRevLett.106.010502
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 4.2 +/- 1.5% was observed, in agreement with the previously measured optical performance of the PFL. The contrast ratio between the ion signal and the background scatter was 23 +/- 4. 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.
4 pages, 2 figures
References in corpus (10)
- Quantum Teleportation Between Distant Matter Qubits
- Scaling and Suppression of Anomalous Quantum Decoherence in Ion Traps
- Strongly enhanced photon collection from diamond defect centres under micro-fabricated integrated solid immersion lenses
- Complete methods set for scalable ion trap quantum information processing
- Ion traps with enhanced optical and physical access
- Trapped-ion probing of light-induced charging effects on dielectrics
- Design of a mode converter for efficient light-atom coupling in free space
- Efficient Fiber Optic Detection of Trapped Ion Fluorescence
- Quantum interference from remotely trapped ions
- Frequency stabilization of an ultraviolet laser to ions in a discharge