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Proceedings Paper

Nanofocusing of UV light in aluminum V-grooves
Author(s): Jieying Mao; Steve Blair
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Paper Abstract

Using the Finite Difference Time Domain method, this paper investigates electromagnetic nanofocusing of ultraviolet light transmitting through V-groove like waveguide in Aluminum via simulation. Parametric study of the field enhancement around the V-groove tip area has been conducted via the change of groove depth, width, and the tip angle. Electric field threshold at the tip of the V-groove in the Ultraviolet wavelength has attracted attention and further effort has been placed to find an origination of this phenomenon. Adiabatic condition and attenuation has been taken into consideration as the possible explanation. Through simplification of the V-groove model into its corresponding Metal-Dielectric-Metal (MDM) waveguide at each distance from the tip, numerical calculations have been taken to figure out the impact of waveguide width on the adiabatic parameter, propagation constant and propagation length. Comparison and analysis for those curves with respect to typical Ultraviolet wavelength is conducted and discussed.

Paper Details

Date Published: 15 September 2016
PDF: 13 pages
Proc. SPIE 9926, UV and Higher Energy Photonics: From Materials to Applications, 99260Z (15 September 2016); doi: 10.1117/12.2238150
Show Author Affiliations
Jieying Mao, Univ. of Utah (United States)
Steve Blair, Univ. of Utah (United States)

Published in SPIE Proceedings Vol. 9926:
UV and Higher Energy Photonics: From Materials to Applications
Gilles Lérondel; Satoshi Kawata; Yong-Hoon Cho, Editor(s)

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