Dipole force free optical control and cooling of nanofiber trapped atoms
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Dipole force free optical control and cooling of nanofiber trapped atoms. / Østfeldt, Christoffer; Béguin, Jean-Baptiste Sylvain; Pedersen, Freja Thilde; Polzik, Eugene Simon; Müller, Jörg Helge; Appel, Jürgen.
I: Optics Letters, Bind 42, Nr. 21, 18.10.2017, s. 4315-4318.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Dipole force free optical control and cooling of nanofiber trapped atoms
AU - Østfeldt, Christoffer
AU - Béguin, Jean-Baptiste Sylvain
AU - Pedersen, Freja Thilde
AU - Polzik, Eugene Simon
AU - Müller, Jörg Helge
AU - Appel, Jürgen
PY - 2017/10/18
Y1 - 2017/10/18
N2 - The evanescent field surrounding nanoscale optical waveguidesoffers an efficient interface between light and mesoscopicensembles of neutral atoms. However, the thermalmotion of trapped atoms, combined with the strong radialgradients of the guided light, leads to a time-modulated couplingbetween atoms and the light mode, thus giving rise toadditional noise and motional dephasing of collective states.Here, we present a dipole force free scheme for coupling ofthe radial motional states, utilizing the strong intensity gradientof the guided mode and demonstrate all-optical couplingof the cesium hyperfine ground states and motionalsideband transitions. We utilize this to prolong the trap lifetimeof an atomic ensemble by Raman sideband cooling ofthe radial motion which, to the best of our knowledge, hasnot been demonstrated in nano-optical structures previously.This Letter points towards full and independent control ofinternal and external atomic degrees of freedom using guidedlight modes only.
AB - The evanescent field surrounding nanoscale optical waveguidesoffers an efficient interface between light and mesoscopicensembles of neutral atoms. However, the thermalmotion of trapped atoms, combined with the strong radialgradients of the guided light, leads to a time-modulated couplingbetween atoms and the light mode, thus giving rise toadditional noise and motional dephasing of collective states.Here, we present a dipole force free scheme for coupling ofthe radial motional states, utilizing the strong intensity gradientof the guided mode and demonstrate all-optical couplingof the cesium hyperfine ground states and motionalsideband transitions. We utilize this to prolong the trap lifetimeof an atomic ensemble by Raman sideband cooling ofthe radial motion which, to the best of our knowledge, hasnot been demonstrated in nano-optical structures previously.This Letter points towards full and independent control ofinternal and external atomic degrees of freedom using guidedlight modes only.
U2 - 10.1364/OL.42.004315
DO - 10.1364/OL.42.004315
M3 - Journal article
C2 - 29088152
VL - 42
SP - 4315
EP - 4318
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 21
ER -
ID: 184608878