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Electromagnetic characteristics of carbon nanotubes with strain

Javvaji, Brahmanandam and Raha, S and Mahapatra, Roy D (2012) Electromagnetic characteristics of carbon nanotubes with strain. In: Conference of the Nanosensors, Biosensors, and Info-Tech Sensors and Systems , March 12-15, 2012, San Diego, CA, USA.

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Official URL: http://dx.doi.org/10.1117/12.918103

Abstract

Electromagnetic characteristics like absorption and electric field distributions of metallic carbon nanotubes are simulated using the discrete dipole approximation. Absorption of electromagnetic energy over a range of frequencies are studied for both parallel and perpendicular incidence of light to the axis of carbon nanotube. Our simulations show 30% enhancement of electric field in the radial direction for nanotubes with axial strain of 0.2 when compared to unstrained nanotubes in case of parallel incidence of light. Simulations for perpendicular incidence of light show an oscillatory behavior for the electric field in the axial direction. Analysis of simulation results indicate potential applications in designing nanostructured antennae and electromagnetic transmission/shielding using CNT-composite.

Item Type: Conference Proceedings
Additional Information: Conference of the Nanosensors, Biosensors, and Info-Tech Sensors and Systems, San Diego, CA, MAR 12-15, 2012
Keywords: Discrete dipole approximation;dielectric constant;carbon nanotube;absorption efficiency factor
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 22 Jun 2012 11:39
Last Modified: 14 Jul 2012 07:41
URI: http://eprints.iisc.ernet.in/id/eprint/44715

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