Photonic-antenna-based optical manipulation on chip

Xin Tong; Yongjun Guo; Lin Zhang

doi:10.1117/12.2608064

3 March 2022 Photonic-antenna-based optical manipulation on chip

Xin Tong, Yongjun Guo, Lin Zhang

Proceedings Volume 11964, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XX; 119640N (2022) https://doi.org/10.1117/12.2608064
Event: SPIE BiOS, 2022, San Francisco, California, United States

Conference Poster

Abstract

We propose an on-chip photonic tweezer to trap particles based on the photonic antenna for the first time. The proposed antenna, composed of some etched trenches on a waveguide, can produce a quasi-spherical-wave beam above the antenna. The beam is demonstrated to have a large gradient for generating gradient forces, which are up to hundreds of pN/W in this work and large enough for microparticle trapping. In addition, the particles far away from the top surface of the antenna, as high as 25 μm, are demonstrated to be trapped by the proposed tweezer. Furthermore, the proposed antenna tweezer shows the possibility of trapping sub-micron particles and the excellent tolerance for fabrication errors. This photonicantenna- based optical tweezer is considered to pave the way for developing fully integrated photonic circuits capable of large-scale parallel particle manipulation.

Citation Download Citation

Xin Tong, Yongjun Guo, and Lin Zhang "Photonic-antenna-based optical manipulation on chip", Proc. SPIE 11964, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XX, 119640N (3 March 2022); https://doi.org/10.1117/12.2608064

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