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Optical pulse propagation in metal nanoparticle chain waveguides

Maier, Stefan A. and Kik, Pieter G. and Atwater, Harry A. (2003) Optical pulse propagation in metal nanoparticle chain waveguides. Physical Review B, 67 (20). Art. No. 205402. ISSN 0163-1829. http://resolver.caltech.edu/CaltechAUTHORS:MAIprb03

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Abstract

Finite-difference time-domain simulations show direct evidence of optical pulse propagation below the diffraction limit of light along linear arrays of spherical noble metal nanoparticles with group velocities up to 0.06c. The calculated dispersion relation and group velocities correlate remarkably well with predictions from a simple point-dipole model. A change in particle shape to spheroidal particles shows up to a threefold increase in group velocity. Pulses with transverse polarization are shown to propagate with negative phase velocities antiparallel to the energy flow.


Item Type:Article
Additional Information:©2003 The American Physical Society (Received 4 March 2003; published 6 May 2003) This work was sponsored by the NSF Grant No. ECS0103543 and the Center for Science and Engineering of Materials at Caltech and the Air Force Office of Scientific Research.
Subject Keywords:nanoparticles; light propagation; finite difference time-domain analysis; light diffraction; photonic band gap
Record Number:CaltechAUTHORS:MAIprb03
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:MAIprb03
Alternative URL:http://dx.doi.org/10.1103/PhysRevB.67.205402
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2448
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:04 Apr 2006
Last Modified:26 Dec 2012 08:49

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