Frequency splitter based on the directional emission from surface modes in dielectric photonic crystal structures

We demonstrate the numerical design and the experimental validation of frequency dependent directional emission from a dielectric photonic crystal structure. The wave propagates through a photonic crystal line-defect waveguide, while a surface layer at the termination of the photonic crystal enables...

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Published inOptics express Vol. 23; no. 11; pp. 13972 - 13982
Main Authors Tasolamprou, Anna C, Zhang, Lei, Kafesaki, Maria, Koschny, Thomas, Soukoulis, Costas M
Format Journal Article
LanguageEnglish
Published United States Optical Society of America (OSA) 01.06.2015
Subjects
ENGINEERING
grating
photonic crystals
surface plasmons
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Summary:We demonstrate the numerical design and the experimental validation of frequency dependent directional emission from a dielectric photonic crystal structure. The wave propagates through a photonic crystal line-defect waveguide, while a surface layer at the termination of the photonic crystal enables the excitation of surface modes and a subsequent grating layer transforms the surface energy into outgoing propagating waves of the form of a directional beam. The angle of the beam is controlled by the frequency and the structure operates as a frequency splitter in the intermediate and far field region.
Bibliography:ObjectType-Article-1
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content type line 23
IS-J-8718
USDOE
AC02-07CH11358
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.23.013972