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Title: Multiwall carbon nanotube microcavity arrays

Abstract

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 μm{sup 2}) 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.

Authors:
;  [1];  [2]; ;  [3];  [4];  [5]
  1. Nanotechnology Laboratory, School of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT (United Kingdom)
  2. Integrated Lightwave Research Group, Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603 (Malaysia)
  3. Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne Street, Cambridge, Massachusetts 02139 (United States)
  4. (United States)
  5. National Center for Nanoscience and Technology, Beijing 100190 (China)
Publication Date:
OSTI Identifier:
22596897
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 119; Journal Issue: 11; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CARBON NANOTUBES; CAVITIES; FINITE ELEMENT METHOD; GEOMETRY; LATTICE PARAMETERS; OPTICAL FILTERS; PERIODICITY; QUALITY FACTOR; RED SHIFT; RESONANCE

Citation Formats

Ahmed, Rajib, Butt, Haider, E-mail: h.butt@bham.ac.uk, Rifat, Ahmmed A., Yetisen, Ali K., Yun, Seok Hyun, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Dai, Qing. Multiwall carbon nanotube microcavity arrays. United States: N. p., 2016. Web. doi:10.1063/1.4944318.
Ahmed, Rajib, Butt, Haider, E-mail: h.butt@bham.ac.uk, Rifat, Ahmmed A., Yetisen, Ali K., Yun, Seok Hyun, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, & Dai, Qing. Multiwall carbon nanotube microcavity arrays. United States. doi:10.1063/1.4944318.
Ahmed, Rajib, Butt, Haider, E-mail: h.butt@bham.ac.uk, Rifat, Ahmmed A., Yetisen, Ali K., Yun, Seok Hyun, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Dai, Qing. Mon . "Multiwall carbon nanotube microcavity arrays". United States. doi:10.1063/1.4944318.
@article{osti_22596897,
title = {Multiwall carbon nanotube microcavity arrays},
author = {Ahmed, Rajib and Butt, Haider, E-mail: h.butt@bham.ac.uk and Rifat, Ahmmed A. and Yetisen, Ali K. and Yun, Seok Hyun and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 and Dai, Qing},
abstractNote = {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 μm{sup 2}) 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.},
doi = {10.1063/1.4944318},
journal = {Journal of Applied Physics},
number = 11,
volume = 119,
place = {United States},
year = {Mon Mar 21 00:00:00 EDT 2016},
month = {Mon Mar 21 00:00:00 EDT 2016}
}