Optical fibre taper-enabled waveguide photoactuators

Jianliang Xiao, Tao Zhou, Ni Yao, Shuqi Ma, Chenxinyu Pan, Pan Wang (), Haoran Fu, Haitao Liu, Jing Pan, Longteng Yu, Shipeng Wang, Wenzhen Yang (), Limin Tong and Lei Zhang ()
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Jianliang Xiao: Research Center for Intelligent Sensing, Zhejiang Lab
Tao Zhou: Institute of Flexible Electronics Technology of THU
Ni Yao: Research Center for Intelligent Sensing, Zhejiang Lab
Shuqi Ma: Research Center for Intelligent Sensing, Zhejiang Lab
Chenxinyu Pan: Zhejiang University
Pan Wang: Zhejiang University
Haoran Fu: Institute of Flexible Electronics Technology of THU
Haitao Liu: Research Center for Intelligent Sensing, Zhejiang Lab
Jing Pan: Zhejiang University
Longteng Yu: Research Center for Intelligent Sensing, Zhejiang Lab
Shipeng Wang: Research Center for Intelligent Sensing, Zhejiang Lab
Wenzhen Yang: Research Center for Intelligent Sensing, Zhejiang Lab
Limin Tong: Zhejiang University
Lei Zhang: Research Center for Intelligent Sensing, Zhejiang Lab

Nature Communications, 2022, vol. 13, issue 1, 1-8

Abstract: Abstract Photoactuators have attracted significant interest for soft robot and gripper applications, yet most of them rely on free-space illumination, which requires a line-of-site low-loss optical path. While waveguide photoactuators can overcome this limitation, their actuating performances are fundamentally restricted by the nature of standard optical fibres. Herein, we demonstrated miniature photoactuators by embedding optical fibre taper in a polydimethylsiloxane/Au nanorod-graphene oxide photothermal film. The special geometric features of the taper endow the designed photoactuator with microscale active layer thickness, high energy density and optical coupling efficiency. Hence, our photoactuator show large bending angles (>270°), fast response (1.8 s for 180° bending), and low energy consumption (

Date: 2022
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DOI: 10.1038/s41467-022-28021-4

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