Abstract: A method and device which can receive and identify electromagnetic radiation in the terahertz (THz) frequency range. The device has a combination of material and geometric parameters that are unique and tunable, enabling resonating frequencies for spectral selectivity in the THz range (0.1-15) with ultra-narrow channel widths (0.01-0.10 THz) full width at half maximum (FWHM). Dependent upon configuration, the device may be employed as a large area resonator to collect weak or diffuse signals or as a constituent of an array able to take pictures within the spectrum for which they are sensitive.

Abstract: A method and device which can receive and identify electromagnetic radiation in the terahertz (THz) frequency range. The device has a combination of material and geometric parameters that are unique and tunable, enabling resonating frequencies for spectral selectivity in the THz range (0.1-15) with ultra-narrow channel widths (0.01-0.10 THz) full width at half maximum (FWHM). Dependent upon configuration, the device may be employed as a large area resonator to collect weak or diffuse signals or as a constituent of an array able to take pictures within the spectrum for which they are sensitive.

Abstract: A plasmonic phototransistor includes a photon to surface-plasmon-polariton (SPP) transducer including and an optical coupling structure configured to receive incident light and an electrically conducting layer having a first and a second surface. The second surface is on the optical coupling structure and the first surface generates SPPs responsive to the incident light. A gate dielectric layer is on the first surface. A two dimensional (2D) electrically conductive material is on the gate dielectric layer having electrical properties sensitive to electromagnetic fields of the SPP. Source and drain contacts are on the 2D electrically conductive material. Dynamic electric fields of the SPPs reach the 2D electrically conductive material that are operable to electric field-induce modulation of an electrical conductance of the 2D electrically conductive material which is sensed from the source and drain contacts.

Abstract: A plasmonic phototransistor includes a photon to surface-plasmon-polariton (SPP) transducer including and an optical coupling structure configured to receive incident light and an electrically conducting layer having a first and a second surface. The second surface is on the optical coupling structure and the first surface generates SPPs responsive to the incident light. A gate dielectric layer is on the first surface. A two dimensional (2D) electrically conductive material is on the gate dielectric layer having electrical properties sensitive to electromagnetic fields of the SPP. Source and drain contacts are on the 2D electrically conductive material. Dynamic electric fields of the SPPs reach the 2D electrically conductive material that are operable to electric field-induce modulation of an electrical conductance of the 2D electrically conductive material which is sensed from the source and drain contacts.