Manipulating plasmon-exciton interactions in the plasmonic waveguide structure based on the dispersion relations concept

Mirahmadi, M.; Mahinroosta, Tayebeh; Hamidi, Seyedeh Mehri

doi:10.1007/s11082-020-02429-y

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…This natural light squeezing character of surface plasmon beyond the diffraction limit has attracted great interest in developing optical chip minimization with high responsivity and low energy consumption [3][4][5][6][7][8]. Various developed plasmonic devices such as waveguides [9][10][11][12], photodetectors [5,[13][14], modulators [15][16][17][18], filters [19][20][21][22], and lensing [23][24] have been numerically and/or experimentally demonstrated. For light propagation, different types of wave-guiding structures have been introduced.…”

Section: Introductionmentioning

confidence: 99%

Thermally Control of Light Propagation in Plasmonics Waveguide and Filter

Afshari-Bavil

Daneshfar

et al. 2021

Preprint

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An active ultra-compact plasmonic waveguide composed of a subwavelength slit and perforated in vanadium dioxide (VO 2 ) followed by a metallic layer is proposed and numerically analyzed. Refractive index variation of VO 2 by external stimuli provides a feasible way for tuning the optical properties of the waveguide. Varying the refractive index of VO 2 corresponds with changing the phase of VO 2 to the metallic state (“on” state). Consequently, the entire structure becomes a typical metal–insulator–metal (MIM) waveguide that routes the incident light through the slit. In addition, during the “off” state, the incident light thereby propagates in the slit and VO 2 medium and mitigates rapidly. By adding a MIM waveguide attached to the Fabry–Perot (FP) cavity, spectrally wide stopband and passband filtering features in telecommunication frequency regime are demonstrated. Tailoring the resonance wavelength can be performed through the geometrical parameters. Such active plasmonic waveguides with high transmission, coupling, and compact size can be utilized in future fully integrated all plasmonic chip technology.

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