Title :
Design of Multicavities on Left-Handed Photonic-Crystal-Based Chemical Sensors
Author :
Ouerghi, F. ; AbdelMalek, F. ; Haxha, Shyqyri ; Akowuah, E.K. ; Ademgil, H.
Author_Institution :
Dept. of Phys., Univ. of El Manar, Tunis, Tunisia
Abstract :
This paper presents a theoretical study on a novel chemical sensor platform based on a 2-D photonic crystal with negative refraction (PCNR). The proposed device consists of distributed multinanocavities embedded within the PCNR. A 2-D finite-difference time-domain method with perfectly matched layers has been employed to investigate the performance of the sensor for different analytes and structural parameters. The calculations show that it is possible to detect simultaneously two analytes when the refractive index is larger than that of water. The quality factor was determined to be around 105 when the radii of the central nanocavity is and that of the external is .
Keywords :
chemical sensors; fibre optic sensors; finite difference time-domain analysis; holey fibres; photonic crystals; 2D finite difference time-domain method; 2D photonic crystal; chemical sensors; left handed photonic crystal; multicavities design; negative refraction; perfectly matched layer; Cavity resonators; Electric fields; Optical waveguides; Photonic crystals; Photonics; Q factor; Refractive index; Left-handed photonic crystal (LHPC); multinanocavities; photonic crystal sensor;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2217313
