Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/90273
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- Title
- Selective manipulation of stop-bands in multi-component photonic crystals : opals as an example
- Related
- Physical review B. Condensed matter and materials physics, Vol. 77, No. 20 (2008), p.205106-1-205106-15
- DOI
- 10.1103/PhysRevB.77.205106
- Publisher
- American Physical Society
- Date
- 2008
- FoR/RFCD Code(s)
-
020400 Condensed Matter Physics
020500 Optical Physics
- Author/Creator
- Rybin, M. V
- Author/Creator
- Baryshev, A. V
- Author/Creator
- Khanikaev, A. B
- Author/Creator
- Inoue, M
- Author/Creator
- Samusev, K. B
- Author/Creator
- Sel'kin, A. V
- Author/Creator
- Yushin, G
- Author/Creator
- Limonov, M. F
- Description
- We report on a comprehensive theoretical and experimental study of stop-band switching in photonic crystals. The suggested principles of light control are based on new Bragg diffraction effects discovered in multi-component periodic structures. The described analytical approach allows a detailed study of selective switching of (hkl) stop-bands by varying the permittivity of the components or the lattice parameters. For two-component photonic crystals, we showed two possible switching-off regimes. In the first regime, all of the stop-bands may only be simultaneously switched off if the certain matching conditions for permittivities are satisfied. In contrast, in the second regime, one can selectively switch off a preferred stop-band by adjusting the structural parameters irrespective of the permittivity values. For multi-component crystals, the on/off switching of stop-bands has a quasiperiodic resonant character. In the absence of resonance conditions, an (hkl) stop-band can be selectively switched by tuning the permittivity of the structural components, whereas at the resonance, a photonic stop-band cannot be switched off by changing the permittivity. A proper choice of the structural and dielectric parameters can create a resonance photonic band determining the Bragg wavelengths, to which a photonic crystal can never be transparent. The theoretical results were experimentally tested on classical photonic crystals, opals. Selective switching of stop-bands was studied by immersion-resolved and polarization-resolved spectroscopy. We found that opals possess all predictable properties of multi-component structures due to inhomogeneity of the constituent a-SiO₂ spheres.
- Description
- 15 page(s)
- Subject Keyword
- 020400 Condensed Matter Physics
- Subject Keyword
- 020500 Optical Physics
- Resource Type
- journal article
- Organisation
- Macquarie University. Dept. of Physics
- Identifier
- http://hdl.handle.net/1959.14/90273
- Identifier
- ISSN:1550-235X
- Identifier
- mq-rm-2009005740
- Language
- eng
- Reviewed
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