Multiwall carbon nanotube microcavity arrays
Periodic highly dense multi-wall carbon nanotube (MWCNT) arrays can act as photonic materials exhibiting band gaps in the visible regime and beyond terahertz range. MWCNT arrays in square arrangement for nanoscale lattice constants can be configured as a microcavity with predictable resonance freque...
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my.um.eprints.181532017-11-08T02:02:35Z http://eprints.um.edu.my/18153/ Multiwall carbon nanotube microcavity arrays Ahmed, R. Rifat, A.A. Yetisen, A.K. Dai, Q. Yun, S.H. Butt, H. R Medicine TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering Periodic highly dense multi-wall carbon nanotube (MWCNT) arrays can act as photonic materials exhibiting band gaps in the visible regime and beyond terahertz range. MWCNT arrays in square arrangement for nanoscale lattice constants can be configured as a microcavity with predictable resonance frequencies. Here, computational analyses of compact square microcavities (≈0.8 × 0.8 μm2) in MWCNT arrays were demonstrated to obtain enhanced quality factors (≈170-180) and narrow-band resonance peaks. Cavity resonances were rationally designed and optimized (nanotube geometry and cavity size) with finite element method. Series (1 × 2 and 1 × 3) and parallel (2 × 1 and 3 × 1) combinations of microcavities were modeled and resonance modes were analyzed. Higher order MWCNT microcavities showed enhanced resonance modes, which were red shifted with increasing Q-factors. Parallel microcavity geometries were also optimized to obtain narrow-band tunable filtering in low-loss communication windows (810, 1336, and 1558 nm). Compact series and parallel MWCNT microcavity arrays may have applications in optical filters and miniaturized optical communication devices. American Institute of Physics 2016 Article PeerReviewed Ahmed, R. and Rifat, A.A. and Yetisen, A.K. and Dai, Q. and Yun, S.H. and Butt, H. (2016) Multiwall carbon nanotube microcavity arrays. Journal of Applied Physics, 119 (11). p. 113105. ISSN 0021-8979 https://doi.org/10.1063/1.4944318 doi:10.1063/1.4944318 |
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R Medicine TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering Ahmed, R. Rifat, A.A. Yetisen, A.K. Dai, Q. Yun, S.H. Butt, H. Multiwall carbon nanotube microcavity arrays |
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Periodic highly dense multi-wall carbon nanotube (MWCNT) arrays can act as photonic materials exhibiting band gaps in the visible regime and beyond terahertz range. MWCNT arrays in square arrangement for nanoscale lattice constants can be configured as a microcavity with predictable resonance frequencies. Here, computational analyses of compact square microcavities (≈0.8 × 0.8 μm2) in MWCNT arrays were demonstrated to obtain enhanced quality factors (≈170-180) and narrow-band resonance peaks. Cavity resonances were rationally designed and optimized (nanotube geometry and cavity size) with finite element method. Series (1 × 2 and 1 × 3) and parallel (2 × 1 and 3 × 1) combinations of microcavities were modeled and resonance modes were analyzed. Higher order MWCNT microcavities showed enhanced resonance modes, which were red shifted with increasing Q-factors. Parallel microcavity geometries were also optimized to obtain narrow-band tunable filtering in low-loss communication windows (810, 1336, and 1558 nm). Compact series and parallel MWCNT microcavity arrays may have applications in optical filters and miniaturized optical communication devices. |
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Article |
author |
Ahmed, R. Rifat, A.A. Yetisen, A.K. Dai, Q. Yun, S.H. Butt, H. |
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Ahmed, R. Rifat, A.A. Yetisen, A.K. Dai, Q. Yun, S.H. Butt, H. |
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Ahmed, R. |
title |
Multiwall carbon nanotube microcavity arrays |
title_short |
Multiwall carbon nanotube microcavity arrays |
title_full |
Multiwall carbon nanotube microcavity arrays |
title_fullStr |
Multiwall carbon nanotube microcavity arrays |
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Multiwall carbon nanotube microcavity arrays |
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multiwall carbon nanotube microcavity arrays |
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American Institute of Physics |
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2016 |
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http://eprints.um.edu.my/18153/ https://doi.org/10.1063/1.4944318 |
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