NDLI: An Ultra Compact and High Speed Magneto-Optic Surface Plasmon Switch

Content Provider	IEEE Xplore Digital Library
Author	Khatir, M. Granpayeh, N.
Copyright Year	1983
Abstract	In this paper, we have proposed an ultra compact, wide band, and high speed current-controlled magneto-optic (MO) switch based on the optical excitation of surface plasmon polaritons (SPPs) in a magneto-optic metal-insulator-metal (MO-MIM) waveguide. The SPPs are excited on thin metal films in a Kretschmann configuration. For description of device operation, we have derived the dispersion relation with considering MO effects for the mid layer in the five layer surface plasmon polariton (SPP) slab waveguides in a longitudinal configuration which the applied magnetic field is parallel to the layers' interfaces and the longitudinal wave propagation direction. Due to the coupling between SPP modes, there exist all components of the electromagnetic field, hence we do not have purely TM modes in this configuration. For evaluation of the excitation condition, we have used the Rourad's method to calculate the total reflection coefficient due to all layers beyond the interface of the prism and gold where the incident light is launched to the device. The optical response and operation of the device are discussed in terms of dimensions and wavelength. The device operation is based on the variations of the magnetic bias condition by altering the magnetization within the YIG layer. Switching between ON and OFF states is achieved by altering the amplitude of the control current from zero to an appropriate value which the amplitude of the magnetic field bias, changes proportional to the current value. The presented algorithm for analysis of the proposed switch is useful for the design and analysis of any magneto-optic surface plasmon device.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1045
Ending Page	1054
Page Count	10
File Size	2934824
File Format	PDF
ISSN	07338724
Volume Number	31
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gold Optical switches Optical waveguides Magnetooptic effects Plasmons Optical surface waves surface plasmon polariton switch Anisotropic slab waveguides magneto-optic devices magneto-optic effects metal-insulator-metal waveguides surface plasmon polaritons
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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