Gate-tunable trion switch for excitonic device applications

Acousto-optic Tunable Switch for WDM Applications

polarization diversity AOTF in the passive, or bar, state, and (d) in the active, or cross, state. Abstract: An acousto-optic tunable switch (AOTS) can provide highly selective wavelength switching and wavelength routing in optical DWDM systems. This paper presents the basic concept of AOTS and a simple analysis of the phase mismatch and wavelength deviation in WDM systems using acousto-optic t...

Elastometric device for tunable imaging

An optical micro-electro-mechanical systems (MEMS) structure is provided. The structure includes an elastomer membrane, a plurality of polymer fibers attached to the elastomer membrane, an array of detectors operatively connected to the plurality of polymer fibers at a first end of the plurality of polymer fibers, and a microlens array operatively connected to the plurality of polymer fibers at...

Gate-Tunable Conducting Oxide Metasurfaces.

Metasurfaces composed of planar arrays of subwavelength artificial structures show promise for extraordinary light manipulation. They have yielded novel ultrathin optical components such as flat lenses, wave plates, holographic surfaces, and orbital angular momentum manipulation and detection over a broad range of the electromagnetic spectrum. However, the optical properties of metasurfaces dev...

Gate-tunable supercurrent and multiple Andreev reflections in a superconductor-topological insulator nanoribbon-superconductor hybrid device

Electrically tunable window device.

A device for controlling the transmittance of light over large areas, such as windows, is described. It is based on electrostatically induced surface deformation of soft dielectric elastomer sheets produced when a voltage is applied between two networks of electrically conducting nanowires on either side of the elastomer. Variations in the surface curvature are produced by the applied voltage r...