Microring Zone Structure for Near-Field Probes
| Autor: | Peter Gaso, Daniel Jandura, Patrik Micek, Jana Durisova, Dusan Pudis |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.industry 3D laser lithography Finite-difference time-domain method Physics::Optics SPR Near and far field Surfaces and Interfaces Engineering (General). Civil engineering (General) plasmonics Surfaces Coatings and Films Planar Optics near-field probe Materials Chemistry Near-field scanning optical microscope Depth of field NSOM Surface plasmon resonance TA1-2040 business Lithography Plasmon microring |
| Zdroj: | Coatings, Vol 11, Iss 1363, p 1363 (2021) Coatings Volume 11 Issue 11 |
| ISSN: | 2079-6412 |
| Popis: | Recent advances in Surface Plasmon Resonance (SPR) technologies have shown the possibility of transmission enhancement of localized modes propagating through sub-diffraction wide slits and apertures, resulting in the strong near-field focusing of metallic planar nanostructures. This work presents a new approach to the fabrication of high-resolution near-field optical probes using 3D lithography in combination with numerical finite difference time domain (FDTD) simulations. A narrow 500 nm depth of field focus area was observed both by numerical analysis and near field scanning optical microscopy (NSOM) measurements. Further research and optimization are planned in order to achieve subwavelength focal regions and increased signal intensities. |
| Databáze: | OpenAIRE |
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