2017
DOI: 10.1364/ol.42.004315
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Dipole force free optical control and cooling of nanofiber trapped atoms

Abstract: The evanescent field surrounding nanoscale optical waveguides offers an efficient interface between light and mesoscopic ensembles of neutral atoms. However, the thermal motion of trapped atoms, combined with the strong radial gradients of the guided light, leads to a time-modulated coupling between atoms and the light mode, thus giving rise to additional noise and motional dephasing of collective states. Here, we present a dipole force free scheme for coupling of the radial motional states, utilizing the stro… Show more

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Cited by 15 publications
(13 citation statements)
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“…In particular, efficient atom loading nearby the nanostructure is crucial for positioning and coupling many atoms, not a single atom, to the evanescent field of the guided mode. In so doing, we can connect the success efficient two-color evanescent-field atom trapping with nanofibers [49][50][51][52] to the unique features and possibilities of the photonic ATIP. Underpinning our approach is our introduction of a MOT produced in a sub-millimeter diameter hole on a microfabricated transparent membrane.…”
Section: Introductionmentioning
confidence: 99%
“…In particular, efficient atom loading nearby the nanostructure is crucial for positioning and coupling many atoms, not a single atom, to the evanescent field of the guided mode. In so doing, we can connect the success efficient two-color evanescent-field atom trapping with nanofibers [49][50][51][52] to the unique features and possibilities of the photonic ATIP. Underpinning our approach is our introduction of a MOT produced in a sub-millimeter diameter hole on a microfabricated transparent membrane.…”
Section: Introductionmentioning
confidence: 99%
“…Due to the strong spatial gradient of any light field that propagates through the nanofiber (see Figure 1(b)), it is important that the light used to monitor the atomic motion does not itself exert a force on the atoms. In [14], a dipole-force free scheme for driving Raman transitions in a nanofiber trap is introduced. We use a single phasemodulated beam, co-propagating with the probe light, to drive coherently Raman transitions.…”
Section: Methods and Resultsmentioning
confidence: 99%
“…Frequency equation Figure 5 shows that there are three fundamental bands without a finite minimum frequency: L 01 , T 01 , and F 11 . Nanofiber-based cold atom traps have trap frequencies on the order of 100 kHz [5,9,24,74] as we discuss in section II, so only modes on the fundamental bands can resonantly couple to the atoms for typical parameters of the nanofiber. The fundamental bands are therefore of special importance in this article, and we provide approximate expressions for the dispersion relations and displacement fields in the low-frequency limit.…”
Section: Casementioning
confidence: 99%