NDLI: Kerr nonlinear all-optical switches based on asymmetric plasmonic T-shaped single slit

Content Provider	IEEE Xplore Digital Library
Author	Ahadi, S. Granpayeh, N.
Copyright Year	2015
Description	Author affiliation: Center of Excellence in Electromagn., K. N. Toosi Univ. of Technol., Tehran, Iran (Ahadi, S.; Granpayeh, N.)
Abstract	All-optical switches are considered as a key element in the optical communication systems networks. In this article, the performance of a compact switch, based on asymmetric plasmonic T-shaped single slit structure, coated with Kerr nonlinear dielectric, is analyzed and simulated by the finite-difference time-domain (FDTD) numerical method. In the structure of this plasmonic switch, by utilizing a Fabry-Perot resonance effect, the light-matter interaction length is increased and the sensitivity of the switch to the environment refractive index variations is strengthened. Furthermore, the excitation and modulation processes of the surface plasmon polaritons (SPPs) occur in a single structure which results in a remarkable reduction of the total size of the device. The switching is caused by the Kerr nonlinear self-phase modulation (SPM) effect. The extinction ratio of this all-optical bidirectional switch is higher than 6dB. This compact structure may be used in the photonic integrated circuits, (PICs).
Starting Page	343
Ending Page	347
File Size	549599
Page Count	5
File Format	PDF
e-ISBN	9781479919727
DOI	10.1109/IranianCEE.2015.7146237
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-05-10
Publisher Place	Iran
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrical engineering Decision support systems Surface plasmon polaritons Conferences Hafnium Kerr nonlinear effect Self-phase modulation All-optical plasmonic switch
Content Type	Text
Resource Type	Article

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