Chaos and rectification of electromagnetic wave in a lateral semiconductor superlatticeK. N. Alekseev1, 2, P. Pietiläinen1, J. Isohätälä1, A. A. Zharov3 and F. V. Kusmartsev2
1 Department of Physical Sciences, University of Oulu P.O. Box 3000, 90014 Oulu, Finland
2 Department of Physics, Loughborough University - Loughborough LE11 3TU, UK
3 Institute for Physics of Microstructures, RAS - Nizhny Novgorod 603950, Russia
received 10 December 2004; accepted in final form 18 March 2005
published online 14 April 2005
We find the conditions for the rectification of electromagnetic wave in a symmetric lateral semiconductor superlattice with a high mobility of electrons. The rectification is assisted by the transition to a dissipative chaos at a very high mobility. We show that the mechanism responsible for the rectification is the creation of warm electrons in the superlattice miniband caused by the interplay of effects of nonlinearity and finite band width. It corresponds to the symmetry-breaking bifurcation initiated by the dynamic localization of miniband electrons under the action of a high-frequency field.
05.45.-a - Nonlinear dynamics and nonlinear dynamical systems.
73.21.Cd - Superlattices.
72.20.Ht - High-field and nonlinear effects.
© EDP Sciences 2005