Issue
EPL
Volume 80, Number 3, November 2007
Article Number 30002
Number of page(s) 5
Section General
DOI http://dx.doi.org/10.1209/0295-5075/80/30002
Published online 09 October 2007
EPL, 80 (2007) 30002
DOI: 10.1209/0295-5075/80/30002

Management of localized energy in discrete nonlinear transmission lines

M. Sato1, S. Yasui1, M. Kimura2, T. Hikihara2 and A. J. Sievers3

1  Graduate School of Natural Science and Technology, Kanazawa University - Kanazawa, Ishikawa 920-1192, Japan
2  Department of Electrical Engineering, Kyoto University - Nishikyo, Kyoto 615-8510, Japan
3  Laboratory of Atomic and Solid State Physics, Cornell University - Ithaca, NY 14853-2501, USA


received 18 July 2007; accepted in final form 11 September 2007; published November 2007
published online 9 October 2007

Abstract
The manipulation of locked intrinsic localized modes/discrete breathers is studied experimentally in nonlinear electric transmission line arrays. Introducing a static lattice impurity in the form of a capacitor, resistor or inductor has been used both to seed or destroy and attract or repel these localized excitations. In a nonlinear di-element array counter propagating short electrical pulses traveling in the acoustic branch are used to generate a stationary intrinsic localized mode in the optic branch at any particular lattice site. By changing the pulse polarity the same localized excitation can be eliminated demonstrating that the dynamical impurity associated with the propagating electrical pulse in the acoustic branch can trigger optical localized mode behavior.

PACS
05.45.-a - Nonlinear dynamics and chaos.
63.20.Pw - Localized modes.
84.30.-r - Electronic circuits.

© Europhysics Letters Association 2007