On-chip optical tweezers based on free-form optics

Jinsheng Lu; Shaoliang Yu; Vincent Ginis; Simon Kheifets; Soon Wei Daniel Lim; Min Qiu; Tian Gu; Juejun Hu; Federico Capasso

doi:10.1117/12.2594988

1 August 2021 On-chip optical tweezers based on free-form optics

Jinsheng Lu, Shaoliang Yu, Vincent Ginis, Simon Kheifets, Soon Wei Daniel Lim, Min Qiu, Tian Gu, Juejun Hu, Federico Capasso

Author Affiliations +

Proceedings Volume 11798, Optical Trapping and Optical Micromanipulation XVIII; 117981O (2021) https://doi.org/10.1117/12.2594988
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

We introduce a new class of on-chip optical tweezers with high trapping efficiency, compact footprint, and broadband operation by integrating free-form micro-reflectors and micro-lenses to the facets of waveguides to generate the strong three-dimensional optical field gradient for optical trapping. We demonstrate the design, fabrication, and measurement of both reflective and refractive micro-optical tweezers. The reflective tweezers feature a remarkably small trapping threshold power, and the refractive tweezers are handy for multi-particle trapping and inter-particle interaction analysis. This new class of tweezers is promising for on-chip sensing, cell assembly, particle dynamics analysis, and ion trapping.

Conference Presentation

Citation Download Citation

Jinsheng Lu, Shaoliang Yu, Vincent Ginis, Simon Kheifets, Soon Wei Daniel Lim, Min Qiu, Tian Gu, Juejun Hu, and Federico Capasso "On-chip optical tweezers based on free-form optics", Proc. SPIE 11798, Optical Trapping and Optical Micromanipulation XVIII, 117981O (1 August 2021); https://doi.org/10.1117/12.2594988

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