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Title: 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 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. Furthermore, 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.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [4]
  1. Inst. of Electronic Structure and Laster, Crete (Greece)
  2. Iowa State Univ., Ames, IA (United States)
  3. Inst. of Electronic Structure and Laster, Crete (Greece); Univ. of Crete, Crete (Greece)
  4. Inst. of Electronic Structure and Laster, Crete (Greece); Iowa State Univ., Ames, IA (United States)
Publication Date:
OSTI Identifier:
1222268
Report Number(s):
IS-J-8718
Journal ID: ISSN 1094-4087; OPEXFF
Grant/Contract Number:
AC02-07CH11358
Type:
Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 23; Journal Issue: 11; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; photonic crystals; surface plasmons; grating