Nanoparticle trapping and control in a hollow whispering gallery resonator

Jonathan M. Ward; Yong Yang; Sile Nic Chormaic

doi:10.1117/12.2269421

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18 April 2017 Nanoparticle trapping and control in a hollow whispering gallery resonator

Jonathan M. Ward, Yong Yang, Sile Nic Chormaic

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Proceedings Volume 10252, Optical Manipulation Conference; 102520X (2017) https://doi.org/10.1117/12.2269421
Event: SPIE Technologies and Applications of Structured Light, 2017, Yokohama, Japan

Abstract

In this work, hollow whispering gallery resonators with thin walls are filled with a water solution containing 500 nm nanoparticles. The quasi-droplet modes of the hollow resonator create an optical scattering force which pushes the particles around with velocities far exceeding 1.2 mm/s. The optical modes are observed to shift up to tens of GHz in the presence of the nanoparticle. By using counter propagating modes, the position and direction of the particles are controlled, this is the first time trapping and control of nanoparticles has been demonstrated in a quasi-droplet micoresonator.

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Jonathan M. Ward, Yong Yang, and Sile Nic Chormaic "Nanoparticle trapping and control in a hollow whispering gallery resonator", Proc. SPIE 10252, Optical Manipulation Conference, 102520X (18 April 2017); https://doi.org/10.1117/12.2269421

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