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3 papers
Surface polaritonic solitons and breathers in a planar plasmonic waveguide structure via electromagnetically induced transparency
Koijam Monika Devi, Gagan Kumar, Amarendra K. Sarma
We propose a scheme for the coupler-free excitation of surface polaritonic solitons and breathers in a planar plasmonic waveguide structure comprising of a transparent layer, a met…
Enhanced terahertz transmission through a periodic array of tapered rectangular apertures
Koijam Monika Devi, Amarendra K. Sarma, Gagan Kumar
We numerically analyse extraordinary terahertz transmission properties of an array of rectangular shaped apertures perforated periodically on a thin metal film. The apertures are t…
Terahertz nonlinear conduction and absorption saturation in silicon waveguides
Shanshan Li, Gagan Kumar, Thomas E. Murphy
We employ a silicon dielectric waveguide to confine and concentrate terahertz pulses, and observe that the absorption saturates under strong terahertz fields. By comparing the resp…