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

Autor: Ho, Victor W. L., Chang, Yao, Liu, Yang, Zhang, Chi, Li, Yuhua, Davidson, Roy R., Little, Brent E., Wang, Guanghui, Chu, Sai T.
Předmět:
Zdroj: Micromachines; Feb2020, Vol. 11 Issue 2, p202-202, 1p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index