| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Photonic Band Gap Properties of Three-Dimensional SiO2 Photonic Crystals |
LIU Yan-Ping1,2, YAN Zhi-Jun2, LI Zhi-Gang1, LI Qin-Tao1, WANG Yin-Yue2 |
| 1School of Physics and Electronic Engineering, Taizhou University, Taizhou 318000 2School of Physical Science and Technology, Lanzhou University, Lanzhou 730000 |
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| Cite this article: |
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LIU Yan-Ping, YAN Zhi-Jun, LI Zhi-Gang et al 2010 Chin. Phys. Lett. 27 074205 |
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Abstract Three-dimensional SiO2 photonic crystals (PhCs) are fabricated on quartz substrates by the vertical deposition method. Scanning electron microscopy measurement reveals that the samples exhibit an ordered close-packed arrangement of SiO2 spheres. It is found that the position of the [111] photonic band gap (PBG) shifts to a long wavelength (red shift) with increasing sphere size. Gap broadening effects are observed due to the presence of defects in the samples. Moreover, the optical properties of the PBG are very sensitive to the annealing temperature. Our results indicate that the optical properties of the PBG can be easily tuned in the visible region by appropriate experimental parameters, which will be useful for practical applications of PhC optical devices.
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| Keywords:
42.70.Qs
61.46.Df
81.16.Dn
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Received: 04 February 2010
Published: 28 June 2010
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| PACS: |
42.70.Qs
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(Photonic bandgap materials)
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61.46.Df
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(Structure of nanocrystals and nanoparticles ("colloidal" quantum dots but not gate-isolated embedded quantum dots))
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81.16.Dn
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(Self-assembly)
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