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Design of a compact photonic crystal sensor

Derbali, J. and AbdelMalek, F. and Obayya, S. S. A. and Bouchriha, H. and Letizia, R. (2011) Design of a compact photonic crystal sensor. Optical and Quantum Electronics, 42 (8). pp. 463-472. ISSN 0306-8919

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Abstract

The development of technology in photonic crystal (PC) structures has seen rapid progress. Using PCs in biosensing area may open new venues to achieve single molecule detection, and high resolution scanning. A novel PC sensor with improved performances, in terms of size, compactness and sensitivity is presented in this paper. The sensing element consists of dielectric cylinders with varying radius introduced along < 01 > and < 10 > directions of the crystal. The results show that the peak wavelength shifts to the high frequency region when only six cylinders are filled with analytes. Also, the peaks show a larger shift compared to the structure obtained using the entire PC waveguide as sensing region. The proposed sensor shows a better sensitivity to water than other analytes, where the peak wavelength tends to shift towards the low frequency region.

Item Type: Article
Journal or Publication Title: Optical and Quantum Electronics
Uncontrolled Keywords: Photonic crystals ; Biosensing ; Sensitivity
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Engineering
ID Code: 57768
Deposited By: ep_importer_pure
Deposited On: 22 Aug 2012 09:23
Refereed?: Yes
Published?: Published
Last Modified: 24 Jan 2014 05:31
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/57768

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