Design, simulation, and fabrication of longitudinal electro-optically tuned transparent-comb-electrode photonic crystals
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- OH Jong-Min
- Graduate School of Science and Technology, Tokyo Institute of Technology
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- HOSHINA Takuya
- Graduate School of Science and Technology, Tokyo Institute of Technology
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- TAKEDA Hiroaki
- Graduate School of Science and Technology, Tokyo Institute of Technology
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- TSURUMI Takaaki
- Graduate School of Science and Technology, Tokyo Institute of Technology
Abstract
We designed advanced transparent-comb-electrode photonic crystals (TCE PCs) to use the longitudinal electro-optic (LEO) effect, so they are composed of Al-doped ZnO (AZO) layers, which serve as internal/external electrodes, and centered (Pb,La)(Zr,Ti)O3 (PLZT) layers, which serve as EO material. The simulated transmittance spectra of a multilayer interference (MLI) model revealed the conditions in the AZO and PLZT film thicknesses and the AZO/PLZT period number for a narrow photonic band gap (PBG). The TCE PCs consisted of four periods of AZO/PLZT, and it was fabricated by RF magnetron sputtering through metal mask patterning. Finally, a refractive index change induced by the LEO effect of the PLZT layers was accomplished by applying the voltage dependence of transmittance spectra that were well fitted with a revised (MLI) model considering light absorption and scattering. The PCs exhibit large refractive index changes of 1.3 × 10−2 and 2.9 × 10−2 at DC voltages of 4 and 8 V, respectively. The corresponding PBG shifts were 3.9 and 8.5 nm, implying high a PBG tunability of ~1 nm/V.
Journal
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 121 (1416), 659-663, 2013
The Ceramic Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282680263502208
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- NII Article ID
- 130004480185
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- ISSN
- 13486535
- 18820743
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed