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Optical Trapping and Manipulating with a Silica Microring Resonator in a Self-Locked Scheme.


ABSTRACT: Based on the gradient force of evanescent waves in silica waveguides and add-drop micro-ring resonators, the optical trapping and manipulation of micro size particles is demonstrated in a self-locked scheme that maintains the on-resonance system even if there is a change in the ambient temperature or environment. The proposed configuration allows the trapping of particles in the high Q resonator without the need for a precise wavelength adjustment of the input signal. On the one hand, a silicon dioxide waveguide having a lower refractive index and relatively larger dimensions facilitates the coupling of the laser with a single-mode fiber. Furthermore, the experimental design of the self-locked scheme reduces the sensitivity of the ring to the environment. This combination can trap the micro size particles with a high stability while manipulating them with high accuracy.

SUBMITTER: Ho VWL 

PROVIDER: S-EPMC7074748 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Optical Trapping and Manipulating with a Silica Microring Resonator in a Self-Locked Scheme.

Ho Victor W L VWL   Chang Yao Y   Liu Yang Y   Zhang Chi C   Li Yuhua Y   Davidson Roy R RR   Little Brent E BE   Wang Guanghui G   Chu Sai T ST  

Micromachines 20200215 2


Based on the gradient force of evanescent waves in silica waveguides and add-drop micro-ring resonators, the optical trapping and manipulation of micro size particles is demonstrated in a self-locked scheme that maintains the on-resonance system even if there is a change in the ambient temperature or environment. The proposed configuration allows the trapping of particles in the high Q resonator without the need for a precise wavelength adjustment of the input signal. On the one hand, a silicon  ...[more]

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