Observation of asymmetric transport in structures with active nonlinearities

Authors

N. Bender
S. Factor
J. D. Bodyfelt
Hamidreza Ramezani, The University of Texas Rio Grande ValleyFollow
D. N. Christodoulides
F. M. Ellis
T. Kottos

Document Type

Article

Publication Date

6-4-2013

Abstract

A mechanism for asymmetric transport which is based on parity-time- symmetric nonlinearities is presented. We show that in contrast to the case of conservative nonlinearities, an increase of the complementary conductance strength leads to a simultaneous increase of asymmetry and transmittance intensity. We experimentally demonstrate the phenomenon using a pair of coupled Van der Pol oscillators as a reference system, each with complementary anharmonic gain and loss conductances, connected to transmission lines. An equivalent optical setup is also proposed. © 2013 American Physical Society.

Comments

© Physical Review Letters. Original version available at: http://doi.org/10.1103/PhysRevLett.110.234101

Recommended Citation

Bender, Nicholas, Samuel Factor, Joshua D. Bodyfelt, Hamidreza Ramezani, Demetrios N. Christodoulides, Fred M. Ellis, and Tsampikos Kottos. "Observation of asymmetric transport in structures with active nonlinearities." Physical review letters 110, no. 23 (2013): 234101. http://doi.org/10.1103/PhysRevLett.110.234101

Publication Title

Physical Review Letters

DOI

10.1103/PhysRevLett.110.234101