TY - JOUR
T1 - Unidirectional and bidirectional coupling of surface plasmons based on a nonperiodic nano slit array
AU - Udupi, Aparna
AU - Handigod, Mruthyunjaya Somasekhara
AU - Kumar, Sathish Madhava
PY - 2018/1/1
Y1 - 2018/1/1
N2 - A 2D structure is proposed, made up of nano slits to couple free space mode of any given wave front to a propagating Surface Plasmon Polariton (SPP) mode of Metal Insulator Metal (MIM) waveguide. The structure can be designed to act as either a unidirectional or bidirectional coupler. Designed structures are simulated using an FEM technique and results for circular and plane wave fronts are demonstrated. From the results obtained, it is observed that there is an optimum aperture size for coupling maximum power into the MIM waveguide for the case of a circular wave front.
AB - A 2D structure is proposed, made up of nano slits to couple free space mode of any given wave front to a propagating Surface Plasmon Polariton (SPP) mode of Metal Insulator Metal (MIM) waveguide. The structure can be designed to act as either a unidirectional or bidirectional coupler. Designed structures are simulated using an FEM technique and results for circular and plane wave fronts are demonstrated. From the results obtained, it is observed that there is an optimum aperture size for coupling maximum power into the MIM waveguide for the case of a circular wave front.
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U2 - 10.4302/plp.v10i1.745
DO - 10.4302/plp.v10i1.745
M3 - Article
AN - SCOPUS:85044725098
SN - 2080-2242
VL - 10
SP - 17
EP - 19
JO - Photonics Letters of Poland
JF - Photonics Letters of Poland
IS - 1
ER -