Simple integrated single-atom detector

Wilzbach, Marco; Heine, Dennis; Groth, S.; Liu, Xiyuan; Raub, Thomas J.; Hessmo, Björn; Schmiedmayer, Jörg

doi:10.1364/ol.34.000259

Cited by 25 publications

(24 citation statements)

References 18 publications

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“…The enabling technology in this case has already been demonstrated by using integrated optical elements on an atom chip. 94 Another solution is to combine an atom chip with integrated photonic optical chips. In both situations, atoms may be locally excited for position-resolved detection.…”

Section: B Enabling Technologiesmentioning

confidence: 99%

Compact chip-scale guided cold atom gyrometers for inertial navigation: Enabling technologies and design study

Alzar

2019

AVS Quantum Science

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This work reviews the topic of rotation sensing with compact cold atom interferometers. A representative set of compact free-falling cold atom gyroscopes is considered because, in different respects, they establish a rotation-measurement reference for cold guided-atom technologies. The review first discusses enabling technologies relevant to a set of key functional building blocks of an atom chip-based compact inertial sensor with cold guided atoms. These functionalities concern the accurate and reproducible positioning of atoms to initiate a measurement cycle, the coherent momentum transfer to the atom wave packets, the suppression of propagation-induced decoherence due to potential roughness, the on-chip detection, and the vacuum dynamics because of its impact on the sensor stability, which is due to measurement dead time. Based on the existing enabling technologies, the design of an atom chip gyroscope with guided atoms is formalized using a design case that treats design elements such as guiding, fabrication, scale factor, rotation-rate sensitivity, spectral response, important noise sources, and sensor stability. arXiv:1912.06851v1 [quant-ph]

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Section: B Enabling Technologiesmentioning

confidence: 99%

Compact chip-scale guided cold atom gyrometers for inertial navigation: Enabling technologies and design study

Alzar

2019

AVS Quantum Science

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“…More specifically, measurements of correlation functions even necessitate the visibility of single atoms sparsely distributed in the falling cloud. In this appendix, we will motivate the need for the imaging system as described in this paper to tackle such tasks, by estimating the limits of conventional low-power absorption imaging 10 . We will first turn to resolution limitations in TOF before analysing the detection limit in the case of sparse atoms.…”

Section: Appendix a Limitations Of Absorption Imaging In Tofmentioning

confidence: 99%

Single-particle-sensitive imaging of freely propagating ultracold atoms

Bücker¹,

Perrin²,

Manz³

et al. 2009

New J. Phys.

110

117

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We present a novel imaging system for ultracold quantum gases in expansion. After release from a confining potential, atoms fall through a sheet of resonant excitation laser light and the emitted fluorescence photons are imaged onto an amplified CCD camera using a high numerical aperture optical system. The imaging system reaches an extraordinary dynamic range, not attainable with conventional absorption imaging. We demonstrate single-atom detection for dilute atomic clouds with high efficiency where at the same time dense Bose-Einstein condensates can be imaged without saturation or distortion. The spatial resolution can reach the sampling limit as given by the 8 µm pixel size in object space. Pulsed operation of the detector allows for slice images, a first step toward a 3D tomography of the measured object. The scheme can easily be implemented for any atomic species and all optical components are situated outside the vacuum system. As a first application we perform thermometry on rubidium Bose-Einstein condensates created on an atom chip.

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“…While the diameter of an optical fiber core is only of the order of 10-100 µm, fiber ends can be brought in close proximity to a fluorescing particle to maximize the NA. Integrated fibers have been used successfully to detect the presence of neutral atoms on a chip [14,15]. On the other hand, using optical fibers for collecting fluorescence from trapped ions is complicated by the fact that the trapping potential is adversely affected by the presence of dielectrics [16].…”

Section: Introductionmentioning

confidence: 99%

An integrated fiber trap for single-ion photonics

et al. 2013

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We report on a novel single-photon source using a single calcium ion trapped between the end facets of two optical fibers. The optical fibers act as photonic channels, and in addition their metallic jackets provide a trapping electric field for the ion. Our system successfully combines a stable single-atom emitter with fiber optics, demonstrating remarkable compactness and scalability. In consequence, it is very well suited for use in quantum networks, where single ions interface with single photons traveling through optical fibers. We have demonstrated the non-classical character of the photons generated by this efficient source in continuous as well as pulsed mode. Contents

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Simple integrated single-atom detector

Cited by 25 publications

References 18 publications

Compact chip-scale guided cold atom gyrometers for inertial navigation: Enabling technologies and design study

Compact chip-scale guided cold atom gyrometers for inertial navigation: Enabling technologies and design study

Single-particle-sensitive imaging of freely propagating ultracold atoms

An integrated fiber trap for single-ion photonics

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