期刊
OPTICS LETTERS
卷 46, 期 6, 页码 1197-1200出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.418459
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- Academy of Finland [310801, 320165]
- Jenny ja Antti Wihurin Rahasto
- Academy of Finland (AKA) [310801, 320165, 320165, 310801] Funding Source: Academy of Finland (AKA)
A high-speed optical technique for fabricating plasmonic metasurfaces in polymer films was demonstrated using a programmable spatial light modulator to control photoreduction sites of gold ions. After irradiation and annealing, nanoparticle growth was induced to create plasmonic microstructures with tunable properties. This cost-effective and straightforward light-based approach enables the creation of plasmonic metasurfaces with arbitrary orientations.
We demonstrate a high-speed optical technique to fabricate plasmonic metasurfaces in a polymer film. The technique is based on a programmable spatial light modulator, which is used to spatially control the photoreduction sites of gold ions in a polyvinyl alcohol film doped with a gold precursor. After irradiation, annealing was used to induce the growth of nanoparticles, producing plasmonic microstructures. Using a 473 nm excitation wavelength, microscopic plasmonic gratings, and meta-atom arrays with arbitrary orientations, an effective nanostructure size of similar to 700 nm and constituent nanoparticles with average size of similar to 37 nm were created. The technique enables a cost-effective and straightforward light-based approach to fabricate plasmonic metasurfaces with tunable properties. (C) 2021 Optical Society of America
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