Optical trapping and control of nanoparticles inside evacuated hollow core photonic crystal fibers

Journal Article (Journal Article)

We demonstrate an optical conveyor belt for levitated nanoparticles over several centimeters inside both air-filled and evacuated hollow-core photonic crystal fibers (HCPCF). Detection of the transmitted light field allows three-dimensional read-out of the particle center-of-mass motion. An additional laser enables axial radiation pressure based feedback cooling over the full fiber length. We show that the particle dynamics is a sensitive local probe for characterizing the optical intensity profile inside the fiber as well as the pressure distribution along the fiber axis. In contrast to some theoretical predictions, we find a linear pressure dependence inside the HCPCF, extending over three orders of magnitude from 0.2 mbar to 100 mbar. A targeted application is the controlled delivery of nanoparticles from ambient pressure into medium vacuum.

Full Text

Duke Authors

Cited Authors

  • Grass, D; Fesel, J; Hofer, SG; Kiesel, N; Aspelmeyer, M

Published Date

  • May 30, 2016

Published In

Volume / Issue

  • 108 / 22

International Standard Serial Number (ISSN)

  • 0003-6951

Digital Object Identifier (DOI)

  • 10.1063/1.4953025

Citation Source

  • Scopus