Numerical analysis of terahertz plasmonic ring resonators

Mustafa Karabiyik; Chowdhury Al-Amin; Nezih Pala

doi:10.1117/12.2016548

31 May 2013 Numerical analysis of terahertz plasmonic ring resonators

Mustafa Karabiyik, Chowdhury Al-Amin, Nezih Pala

Proceedings Volume 8716, Terahertz Physics, Devices, and Systems VII: Advanced Applications in Industry and Defense; 87160I (2013) https://doi.org/10.1117/12.2016548
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

We report on sub-wavelength THz plasmonic split ring resonators on 2 dimensional electron gas (2DEG) at AlGaN/GaN hetero-interface and on oxide coated high mobility graphene. The investigated in this study guide THz electric field into deep sub-wavelength scale by plasmonic excitations. Propagation of a broadband pulse of EM waves was simulated by using a commercial FDTD simulation tool. The results show that split ring resonator structures can be used to guide THz into deep sub-wavelength down λ/200 and achieve relatively higher quality factors than grating gate devices by plasmonic confinement which can be used for THz detection, filtering and possibly for THz on-chip-spectrometer. Moreover, ring resonator modes supported by system can be tuned with an applied voltage to gratings.

Citation Download Citation

Mustafa Karabiyik, Chowdhury Al-Amin, and Nezih Pala "Numerical analysis of terahertz plasmonic ring resonators", Proc. SPIE 8716, Terahertz Physics, Devices, and Systems VII: Advanced Applications in Industry and Defense, 87160I (31 May 2013); https://doi.org/10.1117/12.2016548

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KEYWORDS

Terahertz radiation

Plasmons

Plasmonics

Waveguides

Graphene

Resonators

Split ring resonators

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