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Reconfigurable nonreciprocity with nonlinear Fano diode | | Yi Xu
; Andrey E. Miroshnichenko
; | | Date: |
11 Nov 2013 | | Abstract: | We propose a dynamically tunable nonreciprocal response for wave propagations
by employing nonlinear Fano resonances. We demonstrate that transmission
contrast of waves propagation in opposite directions can be controlled by
excitation signal. In particular, the unidirectional transmission can be
flipped at different times of a pulse, resembling a diode operation with {em
dynamical reconfigurable nonreciprocity}. The key mechanism is the interaction
between the linear and nonlinear Fano resonances that allows for the tunable
unidirectional wave propagation and ultrahigh transmission contrast ratio. We
further present a realistic photonic example which demonstrates the properties
of nonreciprocity can be dynamically manipulated using a pump pulse, based on
the general theoretical model. | | Source: | arXiv, 1311.2533 | | Services: | Forum | Review | PDF | Favorites | |
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