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

Hao Chen, Abdul M. Bhuiya, Qing Ding, Harley T. Johnson and Kimani C. Toussaint ()
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Hao Chen: University of Illinois Urbana-Champaign
Abdul M. Bhuiya: University of Illinois Urbana-Champaign
Qing Ding: University of Illinois Urbana-Champaign
Harley T. Johnson: University of Illinois Urbana-Champaign
Kimani C. Toussaint: University of Illinois Urbana-Champaign

Nature Communications, 2016, vol. 7, issue 1, 1-9

Abstract: 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.

Date: 2016
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DOI: 10.1038/ncomms10468

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