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- Inverse silica opal photonic crystals for optical sensing applications
- Nishijima, Y.; Ueno, K.; Juodkazis, S.; Mizeikis, V.; Misaws, H.; Tanimura, T.; Maeda, K.
- This work reports fabrication of inverse silica opal photonic crystal structures from direct polystyrene micro sphere opals using low-temperature sol-gel infiltration of silica, and examines performance of these photonic crystals as environmental refractive index sensors. Sensitivity of the spectral position and optical attenuation of photonic stop gaps is found to allow detection of the index changes by the amount of ~10-3. The high value of sensitivity, which is comparable with those of other optical sensing techniques, along with simplicity of the optical detection setup required for sensing, and the low-temperature, energy-efficient fabrication process make inverse silica opals attractive systems for optical sensing applications.
- Publication type
- Journal article
- Optics Express, Vol. 15, no. 20 (Oct 2007), pp. 12979-12988
- Publication year
- FOR Code(s)
- 0205 Optical Physics; 0903 Biomedical Engineering; 1113 Ophthalmology and Optometry
- Crystal structures; Energy efficiency; Inverse silica opals; Opals; Optical detection; Optical sensors; Photonic band gap; Photonic crystals; Refractive index; Sensitivity analysis; Silica
- Optical Society of America
- Publisher URL
- Copyright © 2007 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/oe.15.012979. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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