Graphene-based opt-thermoelectric nanotweezers

Changjun Min; Xi Xie

doi:10.1117/12.2572842

10 October 2020 Graphene-based opt-thermoelectric nanotweezers

Changjun Min, Xi Xie

Proceedings Volume 11549, Advanced Optical Imaging Technologies III; 115490X (2020) https://doi.org/10.1117/12.2572842
Event: SPIE/COS Photonics Asia, 2020, Online Only

Conference Poster

Abstract

Here, we propose and investigate a graphene-based opt-thermoelectric nanotweezers, which replace the nano-metallic films in common opt-thermoelectric tweezers by graphene, and show advantages of single-layer graphene structure, broad working wavelength range from visible to infrared, and less toxicity for biological samples. We theoretically study the properties of thermoelectric force and optical force in trapping particles, and then experimentally verify the influence of different parameters on the trapping stiffness, including different polarization states of light, particle sizes, and incident laser energies. An enhanced particle manipulation accuracy within 50 nm has been achieved in experiment.

Citation Download Citation

Changjun Min and Xi Xie "Graphene-based opt-thermoelectric nanotweezers", Proc. SPIE 11549, Advanced Optical Imaging Technologies III, 115490X (10 October 2020); https://doi.org/10.1117/12.2572842

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