Tunable optical lattices in the near-field of a few-mode nanophotonic waveguide
Due to the action of the scattering force, particles that are optically trapped at the surface of a waveguide are propelled in the direction of the light propagation. In this work, we demonstrate an original approach for creating tunable periodic arrays of optical traps along a few-mode silicon nano...
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2019-01-01
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doaj-0cfa63816ee0461fb12de436e1e2d3be2021-08-02T04:58:09ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012151400110.1051/epjconf/201921514001epjconf_eos18_14001Tunable optical lattices in the near-field of a few-mode nanophotonic waveguidePin ChristopheJager Jean-Baptiste0Tardif Manon1Picard Emmanuel2Hadji Emmanuel3de Fornel Frédérique4Cluzel Benoît5Université Grenoble Alpes, C.E.A., I.N.A.C., PHELIQS, SINAPSUniversité Grenoble Alpes, C.E.A., I.N.A.C., PHELIQS, SINAPSUniversité Grenoble Alpes, C.E.A., I.N.A.C., PHELIQS, SINAPSUniversité Grenoble Alpes, C.E.A., I.N.A.C., PHELIQS, SINAPSGroupe Optique de Champ Proche – L.R.C. SiNOPTIQ du C.E.A. n°DSM-08-36, Laboratoire Interdisciplinaire Carnot de Bourgogne U.M.R. C.N.R.S. 6303, Université de Bourgogne-Franche ComtéGroupe Optique de Champ Proche – L.R.C. SiNOPTIQ du C.E.A. n°DSM-08-36, Laboratoire Interdisciplinaire Carnot de Bourgogne U.M.R. C.N.R.S. 6303, Université de Bourgogne-Franche ComtéDue to the action of the scattering force, particles that are optically trapped at the surface of a waveguide are propelled in the direction of the light propagation. In this work, we demonstrate an original approach for creating tunable periodic arrays of optical traps along a few-mode silicon nanophotonic waveguide. We show how the near-field optical forces at the surface of the waveguide are periodically modulated when two guided modes with different propagation constants are simultaneously excited. The phenomenon is used to achieve stable trapping of a large number of dielectric particles or bacteria along a single waveguide. By controlling the light coupling conditions and the laser wavelength, we investigate several techniques for manipulating the trapped particles. Especially, we demonstrate that the period of the optical lattice can be finely tuned by adjusting the laser wavelength. This effect can be used to control the trap positions, and thus transport the trapped particles in both directions along the waveguide.https://www.epj-conferences.org/articles/epjconf/pdf/2019/20/epjconf_eos18_14001.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pin Christophe Jager Jean-Baptiste Tardif Manon Picard Emmanuel Hadji Emmanuel de Fornel Frédérique Cluzel Benoît |
spellingShingle |
Pin Christophe Jager Jean-Baptiste Tardif Manon Picard Emmanuel Hadji Emmanuel de Fornel Frédérique Cluzel Benoît Tunable optical lattices in the near-field of a few-mode nanophotonic waveguide EPJ Web of Conferences |
author_facet |
Pin Christophe Jager Jean-Baptiste Tardif Manon Picard Emmanuel Hadji Emmanuel de Fornel Frédérique Cluzel Benoît |
author_sort |
Pin Christophe |
title |
Tunable optical lattices in the near-field of a few-mode nanophotonic waveguide |
title_short |
Tunable optical lattices in the near-field of a few-mode nanophotonic waveguide |
title_full |
Tunable optical lattices in the near-field of a few-mode nanophotonic waveguide |
title_fullStr |
Tunable optical lattices in the near-field of a few-mode nanophotonic waveguide |
title_full_unstemmed |
Tunable optical lattices in the near-field of a few-mode nanophotonic waveguide |
title_sort |
tunable optical lattices in the near-field of a few-mode nanophotonic waveguide |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2019-01-01 |
description |
Due to the action of the scattering force, particles that are optically trapped at the surface of a waveguide are propelled in the direction of the light propagation. In this work, we demonstrate an original approach for creating tunable periodic arrays of optical traps along a few-mode silicon nanophotonic waveguide. We show how the near-field optical forces at the surface of the waveguide are periodically modulated when two guided modes with different propagation constants are simultaneously excited. The phenomenon is used to achieve stable trapping of a large number of dielectric particles or bacteria along a single waveguide. By controlling the light coupling conditions and the laser wavelength, we investigate several techniques for manipulating the trapped particles. Especially, we demonstrate that the period of the optical lattice can be finely tuned by adjusting the laser wavelength. This effect can be used to control the trap positions, and thus transport the trapped particles in both directions along the waveguide. |
url |
https://www.epj-conferences.org/articles/epjconf/pdf/2019/20/epjconf_eos18_14001.pdf |
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