Ion-beam assisted laser fabrication of sensing plasmonic nanostructures

Scientific Reports
A A KuchmizhakS I Kudryashov

Abstract

Simple high-performance, two-stage hybrid technique was developed for fabrication of different plasmonic nanostructures, including nanorods, nanorings, as well as more complex structures on glass substrates. In this technique, a thin noble-metal film on a dielectric substrate is irradiated by a single tightly focused nanosecond laser pulse and then the modified region is slowly polished by an accelerated argon ion (Ar(+)) beam. As a result, each nanosecond laser pulse locally modifies the initial metal film through initiation of fast melting and subsequent hydrodynamic processes, while the following Ar(+)-ion polishing removes the rest of the film, revealing the hidden topography features and fabricating separate plasmonic structures on the glass substrate. We demonstrate that the shape and lateral size of the resulting functional plasmonic nanostructures depend on the laser pulse energy and metal film thickness, while subsequent Ar(+)-ion polishing enables to vary height of the resulting nanostructures. Plasmonic properties of the fabricated nanostructures were characterized by dark-field micro-spectroscopy, Raman and photoluminescence measurements performed on single nanofeatures, as well as by supporting numerical calculatio...Continue Reading

References

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Citations

Aug 24, 2016·ACS Applied Materials & Interfaces·Aleksandr KuchmizhakAndrey Ionin
Mar 3, 2018·Scientific Reports·S GurbatovA Kuchmizhak
Oct 19, 2017·Optics Express·Alexey P Porfirev, Svetlana N Khonina
Dec 8, 2017·Optics Letters·S SyubaevA Kuchmizhak
Jun 9, 2016·Nanoscale·A KuchmizhakN Inogamov
Nov 3, 2016·Nanotechnology·Serene S BayramAmy Szuchmacher Blum
May 5, 2017·Optics Express·S SyubaevS Kudryashov
Dec 10, 2020·Nanomaterials·Sergey SyubaevAleksandr Kuchmizhak
Sep 15, 2017··S. SyubaevA. Nepomnyashchiy

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Methods Mentioned

BETA
AFM
scanning
atomic force microscopy
X-ray
Raman scattering
irradiate

Software Mentioned

CST Microwave Studio
Lumerical Solutions

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