Optical Trapping and Manipulating with a Silica Microring Resonator in a Self-Locked Scheme
| Autor: | Victor W. L. Ho, Yao Chang, Yang Liu, Chi Zhang, Yuhua Li, Roy R. Davidson, Brent E. Little, Guanghui Wang, Sai T. Chu |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Micromachines, Vol 11, Iss 2, p 202 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2072-666X 11020202 |
| DOI: | 10.3390/mi11020202 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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