Design of a Novel Left-Handed Photonic Crystal Sensor Operating in Aqueous Environment

In this letter, we theoretically propose a biosensor based on a two-dimensional left-handed photonic crystal coupled to an M-shaped resonator. The sensor is optimized to operate in an aqueous environment. By controlling the radius of the air cylinder defect, a strong interaction between light and bi...

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Bibliographic Details
Published in:IEEE photonics technology letters 2011-02, Vol.23 (3), p.188-190
Main Author: AbdelMalek, F
Format: Article
Language:English
Subjects:
Biosensors
Electric fields
Left-handed photonic crystal (LHPC)
Molecular biophysics
molecule binding
photonic crystal sensor
Photonic crystals
Refractive index
Sensitivity
shaped resonator
shift
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Summary:In this letter, we theoretically propose a biosensor based on a two-dimensional left-handed photonic crystal coupled to an M-shaped resonator. The sensor is optimized to operate in an aqueous environment. By controlling the radius of the air cylinder defect, a strong interaction between light and biomolecules in aqueous solution is achieved. We demonstrate numerically that by confining the biomolecular into the region of interest, a high sensitivity is reached. It is shown that shifts in the peak wavelength values are strongly related to the refractive index changes.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2010.2095001