Plasmonic nanojet: an experimental demonstration
| Parent link: | Optics Letters Vol. 45, iss. 12.— 2020.— [P. 3244-3247] |
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| مؤلف مشترك: | |
| مؤلفون آخرون: | , , , , , , , , , |
| الملخص: | Title screen We propose and study a microstructure based on a dielectric cuboid placed on a thin metal film that can act as an efficient plasmonic lens allowing the focusing of surface plasmons at the subwavelength scale. Using numerical simulations of surface plasmon polariton (SPP) field intensity distributions, we observe high-intensity subwavelength spots and formation of the plasmonic nanojet (PJ) at the telecommunication wavelength of 1530 nm. The fabricated microstructure was characterized using amplitude and phase-resolved scattering-type scanning near-field optical microscopy. We show the first experimental observation of the PJ effect for the SPP waves. Such a novel, to the best of our knowledge, and simple platform can provide new pathways for plasmonics, high-resolution imaging, and biophotonics, as well as optical data storage. Режим доступа: по договору с организацией-держателем ресурса |
| منشور في: |
2020
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| الموضوعات: | |
| الوصول للمادة أونلاين: | https://doi.org/10.1364/OL.391861 |
| التنسيق: | الكتروني فصل الكتاب |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663724 |