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https://hdl.handle.net/20.500.14279/13657
Τίτλος: | Low-dimensional nano-patterned surface fabricated by direct-write UV-chemically induced geometric inscription technique | Συγγραφείς: | Allsop, Thomas P. Neal, Ronald Kundrát, Vojtěch Wang, C. Mou, Chengbo Culverhouse, Phil Ania-Castanon, J. D. Kalli, Kyriacos Webb, David J. |
Major Field of Science: | Engineering and Technology | Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering | Λέξεις-κλειδιά: | Laser materials processing;Optical fiber fabrication;Optical fibers;Plasmonics | Ημερομηνία Έκδοσης: | 15-Ιαν-2019 | Πηγή: | Optics Letters, 2019, vol. 44, no. 2, pp. 195-198 | Volume: | 44 | Issue: | 2 | Start page: | 195 | End page: | 198 | Περιοδικό: | Optics Letters | Περίληψη: | We investigate a nano-patterning process which creates reproducible periodic surface topological features that range in size from ∼100 μm to ∼20 μm. Specifically, we have fabricated multi-layered thin films consisting of germanium/silicon strata on a planar substrate, with each layer having nanometers thickness. The material processing exploits focused 244 nm ultra-violet laser light and an opto-mechanical setup typically applied to the inscription of fiber gratings, and is based upon the well-known material compaction interaction of ultra-violet light with germanium oxides. We show this process can be extended to create arrays of metal nano-antennas by adding a metal overlay to the thin film. This results in arrays with dimensions that span nanometer- to centimeter-length scales. Also, each nano-antenna consists of "nano-blocks." Experimental data are presented that show the UV irradiance dosage used to create these metal nanostructures on D-shaped optical fibers has a direct relationship to their transmission spectral characteristics as plasmonic devices. | ISSN: | 15394794 | DOI: | 10.1364/OL.44.000195 | Rights: | © Optical Society of America | Type: | Article | Affiliation: | Aston University University of Plymouth Shanghai University Instituto de Óptica “Daza de Valdés” Cyprus University of Technology |
Publication Type: | Peer Reviewed |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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