Please use this identifier to cite or link to this item:
Title: Low-dimensional nano-patterned surface fabricated by direct-write UV-chemically induced geometric inscription technique
Authors: Allsop, Thomas P. 
Neal, Ronald 
Kundrát, Vojtěch 
Wang, C. 
Mou, Chengbo 
Culverhouse, Phil 
Ania-Castanon, J. D. 
Kalli, Kyriacos 
Webb, David J. 
Keywords: Laser materials processing;Optical fiber fabrication;Optical fibers;Plasmonics
Category: Electrical Engineering - Electronic Engineering - Information Engineering
Field: Engineering and Technology
Issue Date: 15-Jan-2019
Source: Optics Letters, 2019, vol. 44, no. 2, pp. 195-198
Journal: Optics letters 
Abstract: 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: 1539-4794
DOI: 10.1364/OL.44.000195
Rights: © 2019 Optical Society of America.
Type: Article
Appears in Collections:Άρθρα/Articles

Show full item record

Page view(s)

Last Week
Last month
checked on Oct 14, 2019

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.