MUMBAI, India, Jan. 23 -- Intellectual Property India has published a patent application (202631001363 A) filed by National Institute Of Technology, Patna, Bihar, on Jan. 6, for 'multiband terahertz metamaterial absorber.'

Inventor(s) include Patel, Deva Nand; and Maurya, Jitendra Bahadur.

The application for the patent was published on Jan. 23, under issue no. 04/2026.

According to the abstract released by the Intellectual Property India: "A multiband terahertz (THz) metamaterial absorber (MMA) is disclosed. Said absorber comprises of a plurality of unit cells, wherein each of the unit cell (100) from the plurality of unit cells comprises a metallic ground layer (110), a dielectric layer (120) and a planar metallic pattern layer (130). Said layers are stacked in such a way that the dielectric layer (120) separates the metallic ground layer (110) and the planar metallic pattern layer (130). The planar metallic pattern layer (130) is configured to couple an electric and/or magnetic field of an incident THz radiation for resonance. The planar metallic pattern layer (130) further comprises a pi-type resonator (130a) and an E-type resonator (130b) where the pi-type resonator (130a) and E-type resonator (130b) are coplanar and interlaced with each other on the planar metallic pattern layer (130). Said absorber is a hexa-band THz MMA, exhibiting near unity absorption."

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