Collecting more than half the fluorescence photons from a single ion

Maiwald, Robert; Golla, Andrea; Fischer, Martin S.; Bader, Marianne; Heugel, S.; Chalopin, Benoît; Sondermann, Markus; Leuchs, Gerd

doi:10.1103/physreva.86.043431

Cited by 74 publications

(94 citation statements)

References 25 publications

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“…The mirror geometry is the same as used in Refs. [15,19]. A focal length of f = 2.1 mm and an aperture radius of 10 mm result in a half-opening angle of 135…”

Section: Concept Of a Deep Parabolic Mirror Dipole Trapmentioning

confidence: 99%

Optical trapping of nanoparticles by full solid-angle focusing

Salakhutdinov

Sondermann

Carbone

et al. 2016

Optica

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Optical dipole-traps are used in various scientific fields, including classical optics, quantum optics and biophysics. Here, we propose and implement a dipole-trap for nanoparticles that is based on focusing from the full solid angle with a deep parabolic mirror. The key aspect is the generation of a linear-dipole mode which is predicted to provide a tight trapping potential. We demonstrate the trapping of rod-shaped nanoparticles and validate the trapping frequencies to be on the order of the expected ones. The described realization of an optical trap is applicable for various other kinds of solid-state targets. The obtained results demonstrate the feasibility of optical dipole-traps which simultaneously provide high trap stiffness and allow for efficient interaction of light and matter in free space.

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“…The mirror geometry is the same as used in Refs. [15,19]. A focal length of f = 2.1 mm and an aperture radius of 10 mm result in a half-opening angle of 135…”

Section: Concept Of a Deep Parabolic Mirror Dipole Trapmentioning

confidence: 99%

Optical trapping of nanoparticles by full solid-angle focusing

Salakhutdinov

Sondermann

Carbone

et al. 2016

Optica

Self Cite

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“…This can be improved by placing the single emitter at the focus of a parabolic mirror [10], which in addition enhances the atom-field interaction [11,12].…”

Section: Introductionmentioning

confidence: 99%

Generation of entangled matter qubits in two opposing parabolic mirrors

et al. 2014

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We propose a scheme for the remote preparation of entangled matter qubits in free space. For this purpose, a setup of two opposing parabolic mirrors is considered, each one with a single ion trapped at its focus. To get the required entanglement in this extreme multimode scenario, we take advantage of the spontaneous decay, which is usually considered as an apparent nuisance. Using semiclassical methods, we derive an efficient photon-path representation to deal with this problem. We also present a thorough examination of the experimental feasibility of the scheme. The vulnerabilities arising in realistic implementations reduce the success probability, but leave the fidelity of the generated state unaltered. Our proposal thus allows for the generation of high-fidelity entangled matter qubits with high rate.

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“…The absolute theoretical coupling into free space under certain conditions may be near unity [22], though coupling performance into a single Gaussian mode (SMF) will be optics-dependent and therefore difficult to estimate generally. Indeed, though experiments in near-4π collection from dipole emitters with parabolic mirrors have shown possible experimental collection efficiencies of over 50% into free space [23], such experiments have additional optical limitations that can significantly reduce the measured efficiencies of the complete optical system (< 25%), even without the additional constraint of fiber coupling. At least in principle, the single (but non-Gaussian) free-space mode can be mapped with high efficiency onto a SMF mode using adaptive optics.…”

Section: Final Notesmentioning

confidence: 99%

Optimizing single-mode collection from pointlike sources of single photons with adaptive optics

Hill¹,

Hervas²,

Nash³

et al. 2017

Opt. Express

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Abstract:The collection efficiency of light from a point-like emitter may be extremely poor due to aberrations induced by collection optics and the emission distribution of the source. Analyzing the aberrant wavefront (e.g., with a Shack-Hartmann sensor) and correcting accordingly can be infeasible on the single-photon level. We present a technique that uses a genetic algorithm to control a deformable mirror for correcting wavefront aberrations in single-photon signals from point emitters. We apply our technique to both a simulated point source and a real InAs quantum dot, achieving coupling increases of up to 50% and automatic reduction of system drift.

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Collecting more than half the fluorescence photons from a single ion

Cited by 74 publications

References 25 publications

Optical trapping of nanoparticles by full solid-angle focusing

Optical trapping of nanoparticles by full solid-angle focusing

Generation of entangled matter qubits in two opposing parabolic mirrors

Optimizing single-mode collection from pointlike sources of single photons with adaptive optics

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