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Title: Interaction of a two-dimensional electromagnetic breather with an electron inhomogeneity in an array of carbon nanotubes

Propagation of ultrashort laser pulses through various nano-objects has recently became an attractive topic for both theoretical and experimental studies due to its promising perspectives in a variety of problems of modern nanoelectronics. Here, we study the propagation of extremely short two-dimensional bipolar electromagnetic pulses in a heterogeneous array of semiconductor carbon nanotubes. Heterogeneity is defined as a region of enhanced electron density. The electromagnetic field in an array of nanotubes is described by Maxwell's equations, reduced to a multidimensional wave equation. Our numerical analysis shows the possibility of stable propagation of an electromagnetic pulse in a heterogeneous array of nanotubes. Furthermore, we establish that, depending on its speed of propagation, the pulse can pass through the area of increased electron concentration or be reflected therefrom.
Authors:
;  [1] ;  [2] ;  [3]
  1. Singapore University of Technology and Design, 20 Dover Drive, Singapore 138682 (Singapore)
  2. Volgograd State University of Architecture and Civil Engineering, 400074 Volgograd (Russian Federation)
  3. Laboratory of Nanotechnology, Volgograd Institute of Business, 400048 Volgograd (Russian Federation)
Publication Date:
OSTI Identifier:
22304301
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CARBON NANOTUBES; ELECTROMAGNETIC FIELDS; ELECTROMAGNETIC PULSES; ELECTRON DENSITY; ELECTRONS; INTERACTIONS; LASER RADIATION; MAXWELL EQUATIONS; NANOELECTRONICS; NUMERICAL ANALYSIS; SEMICONDUCTOR MATERIALS; TWO-DIMENSIONAL CALCULATIONS; WAVE PROPAGATION