Nonreciprocal magneto-optic waveguiding structures  (Conference Presentation)

Ivan Richter; Pavel Kwiecien; Jirí Čtyroký; Vladimír Kuzmiak

doi:10.1117/12.2507438

4 March 2019 Nonreciprocal magneto-optic waveguiding structures (Conference Presentation)

Ivan Richter, Pavel Kwiecien, Jirí Čtyroký, Vladimír Kuzmiak

Proceedings Volume 10921, Integrated Optics: Devices, Materials, and Technologies XXIII; 109211J (2019) https://doi.org/10.1117/12.2507438
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Based on magnetooptic Fourier modal method (MOaRCWA) simulations, both in 2D in 3D, we have studied the magnetoplasmons in plasmonic nanostructures, such as InSb within the THz spectral region. One of only few possibilities how to impose nonreciprocity in guiding subwavelength structures is to apply an external magnetic field (mainly in the Voigt configuration). In such a case, one-way (nonreciprocal) propagation of SP is not only possible but may bring many interesting phenomena in connection with magnetoplasmons (MSP). We have developed an efficient 2D and 3D numerical technique based on MO aperiodic rigorous coupled wave analysis – MOaRCWA. In our in-house tool, the artificial periodicity is imposed within a periodic 1D and 2D RCWA methods, in the form of the complex transformation and / or uniaxial perfectly matched layers. We have combined the MOaRCWA simulations with (quasi)analytical predictions in order to study MSP performance of various plasmonic nanostructures, such as basen on a highly-dispersive polaritonic InSb material, in the presence of external magnetic field. Here, Voigt MO effect can be used to impose nonreciprocity (one-way propagation) bringing new interesting phenomena in connection with MSP. We have successfully applied our 2D and 3D numerical MOaRCWA technique to several interesting structures, such as THz filters with magnetooptical Bragg grating, a combined 3D InSb - hybrid dielectric-plasmonic slot waveguide structure, etc. The obtained results will be discussed and the perspective will be given.

Conference Presentation

Citation Download Citation

Ivan Richter, Pavel Kwiecien, Jirí Čtyroký, and Vladimír Kuzmiak "Nonreciprocal magneto-optic waveguiding structures (Conference Presentation)", Proc. SPIE 10921, Integrated Optics: Devices, Materials, and Technologies XXIII, 109211J (4 March 2019); https://doi.org/10.1117/12.2507438

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KEYWORDS

Magnetism

Molybdenum

Nanostructures

Plasmonics

Terahertz radiation

Wave propagation

Bragg gratings

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