MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202611086811 A) filed by Indian Institute Of Technology Ropar on July 15, 2026, for A Temperature-Invariant Dielectric-Loaded Plasmonic Bragg Reflector.

Inventors include Danveer Singh; and Shivani Semwal.

The application for the patent was published on September 11, 2026, under issue no. 37/2026.

Abstract: A dielectric-loaded plasmonic Bragg reflector (DL-PBR) (100) is disclosed that exhibits a temperature-invariant optical response over a wide range of temperature. The device is based on the subwavelength plasmonic waveguide integrated with Bragg reflector. It comprises a metal film supporting a surface plasmon polariton (SPP) mode and a periodic...