Towards do-it-yourself planar optical components using plasmon-assisted etching

Nature Communications
Hao ChenKimani C Toussaint

Abstract

In recent years, the push to foster increased technological innovation and basic scientific and engineering interest from the broadest sectors of society has helped to accelerate the development of do-it-yourself (DIY) components, particularly those related to low-cost microcontroller boards. The attraction with DIY kits is the simplification of the intervening steps going from basic design to fabrication, albeit typically at the expense of quality. We present herein plasmon-assisted etching as an approach to extend the DIY theme to optics, specifically the table-top fabrication of planar optical components. By operating in the design space between metasurfaces and traditional flat optical components, we employ arrays of Au pillar-supported bowtie nanoantennas as a template structure. To demonstrate, we fabricate a Fresnel zone plate, diffraction grating and holographic mode converter--all using the same template. Applications to nanotweezers and fabricating heterogeneous nanoantennas are also shown.

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Citations

Jun 1, 2019·Nanotechnology·Qing Ding, Kimani C Toussaint

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Methods Mentioned

BETA
chip
electron-beam lithography
delamination
chips

Software Mentioned

Lumerical FDTD - Solutions
DIY

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