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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/1472
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- Photonic bandgap properties of void-based body-centered-cubic photonic crystals in polymer
- Zhou, Guangyong; Ventura, Michael J.; Gu, Min; Matthews, Aaron F.; Kivshar, Yuri S.
- We report on the fabrication and characterization of void-based body-centered-cubic (bcc) photonic crystals in a solidified transparent polymer by the use of a femtosecond laser-driven microexplosion method. The change in the refractive index in the region surrounding the void dots that form the bcc structures is verified by presenting confocal microscope images, and the bandgap properties are characterized by using a Fourier transform infrared spectrometer. The effect of the angle of incidence on the photonic bandgaps is also studied. We observe multiple stop gaps with a suppression rate of the main gap of 47% for a bcc structure with a lattice constant of 2.77 μm, where the first and second stop gaps are located at 3.7 μm and 2.2 μm, respectively. We also present a theoretical approach to characterize the refractive index of the material for calculating the bandgap spectra, and confirm that the wavelengths of the observed bandgaps are in good correlation with the analytical predictions.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
- Optics Express, Vol. 13, no. 12 (2005), pp. 4390-4395
- Publication year
- Optical Society of America
- Publisher URL
- Copyright © 2005 Optical Society of America. Published version of the paper reproduced here in accordance with the copyright policy of the publisher. 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://www.opticsinfobase.org/abstract.cfm?URI=oe-13-12-4390. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.