MUMBAI, India, April 17 -- Intellectual Property India has published a patent application (202631044657 A) filed by Jis University, Kolkata, West Bengal, on April 7, for 'low-loss plasmonic switching in polymer-clad ito waveguides for terahertz photonic integration.'
Inventor(s) include Dr. Himanshu Ranjan Das; Dr. Haraprasad Mondal; Dr. Rajesh Bose; Ms. Shrabani Sutradhar; and Dr. Sandip Roy.
The application for the patent was published on April 17, under issue no. 16/2026.
According to the abstract released by the Intellectual Property India: "The present invention is a plasmonic optical switch for controlling propagation of an optical signal, comprising a silicon ridge waveguide disposed on a substrate, a dielectric layer disposed over the silicon ridge waveguide, an indium-tin-oxide (ITO) layer disposed over the dielectric layer, a polymer cladding encapsulating the ITO layer and the silicon ridge waveguide to provide optical confinement; and one or more electrodes configured to apply an electrical bias across the ITO layer, wherein application of the electrical bias induces an epsilon-near-zero (ENZ) condition in the ITO layer, resulting in modulation of surface plasmon polariton propagation and switching of the optical signal between a low-loss transmission state and a high-absorption state."
Disclaimer: Curated by HT Syndication.
