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

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.23.013972· OSTI ID:1227368
 [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)

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.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1227368
Report Number(s):
IS-J--8718
Journal Information:
Optics Express, Journal Name: Optics Express Journal Issue: 11 Vol. 23; ISSN 1094-4087; ISSN OPEXFF
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

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High-sensitivity quasi-periodic photonic crystal biosensor based on multiple defective modes journal January 2019

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