Electro-optic modulation in a sub-wavelength gap-plasmon guide
Subimal Deb, K. Sarat Kumar, P. Anantha Lakshmi, S. Dutta Gupta
TL;DR
This paper demonstrates efficient electro-optic modulation using a subwavelength gap-plasmon waveguide with metal coatings, showing large phase shifts over short distances controlled by voltage.
Contribution
It introduces a novel subwavelength gap-plasmon waveguide device with efficient electro-optic modulation capabilities and analyzes its performance in different configurations.
Findings
Large phase accumulation over short distances
Effective modulation in end-fire configuration
Successful use of taper from micron-sized guide
Abstract
We show efficient electro-optic modulation in a subwavelength gap-plasmon waveguide (GPW) formed by an electro-optic polymer with metal coatings. The proposed device is studied in the attenuated total reflection and end-fire configurations. In dealing with the end-fire configuration we used a taper from a micron sized guide to the GPW. The structure is shown to exhibit large phase accumulation over short distances, controllable by the applied modulating voltage.
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Taxonomy
TopicsPhotonic and Optical Devices · Semiconductor Lasers and Optical Devices · Plasmonic and Surface Plasmon Research