The water content sensor in heavy oil based on one-dimensional photonic crystals

An ultra-compact sensor, based on a one-dimensional (1D) photonic crystal (PhC) of alternate layers of SiO2 and TiO2 with a defect layer in the middle, was proposed for measuring the water content in heavy oil. The reflection properties for heavy oil containing different water content filled in the...

Full description

Saved in:
Bibliographic Details
Published in:Optik (Stuttgart) 2013-08, Vol.124 (16), p.2519-2521
Main Authors: Li, L., Liu, G.Q., Huang, K., Chen, Y.H., Gong, L.X., Tang, F.L.
Format: Article
Language:English
Subjects:
Crystal defects
Defects
Lichtennecher
Mathematical analysis
Moisture content
Optical materials and properties
Photonic crystals
Reflection
Sensor
Sensors
Titanium dioxide
Wavelengths
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An ultra-compact sensor, based on a one-dimensional (1D) photonic crystal (PhC) of alternate layers of SiO2 and TiO2 with a defect layer in the middle, was proposed for measuring the water content in heavy oil. The reflection properties for heavy oil containing different water content filled in the defect layer were studied by the transfer matrix method (TMM) and the results show that the defect mode, appearing in the photonic band gap (PBG) of PhC shifts to longer wavelength region with increasing the refractive index of the defect layer introduced in the PhC. An average sensitivity of Δg1/Δλ=0.021nm−1 is achieved, indicating that the water content in heavy oil can be calculated according to the change in the wavelength of defect modes.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2012.08.015