According to various embodiments, a tunable optical device comprises a tunable optical metasurface on a substrate with an integrated driver circuit. In some embodiments, the tunable optical device includes a photon shield layer to prevent optical radiation from disrupting operation of the driver circuit. In some embodiments, the tunable optical device includes a diagnostic circuit to detect and disable defective optical structures of the metasurface. In some embodiments, the tunable optical device includes an integrated heater circuit that maintains a liquid crystal of the metasurface above a minimum operating temperature. In some embodiments, the tunable optical device includes an integrated lidar sequencing controller, a steering pattern subcircuit, and a photodetector circuit.

A tunable optical metamaterial system includes a tunable optical metamaterial, an actuator module to selectively activate the tunable optical metamaterial, and a control system to selectively control the actuator module. The tunable optical metamaterial includes a substrate defined by one or more fluid-filled pockets formed by one or more electroactive polymer (EAP) layers defining a reservoir containing a fluid that is induced to a change in volumetric configuration or 3D orientation when electrically activated. The optically active array of resonators are populated on an electroactive surface of the one or more fluid-filled pockets and are optically responsive to the change in volumetric configuration of the one or more fluid-filled pockets. The control module is to selectively control, via the actuator module, the optical properties of the tunable optical metamaterial by causing the electrical activation of the fluid-filled pockets.

Embodiments described herein relate to nanostructured trans-reflective filters having sub-wavelength dimensions. In one embodiment, the trans-reflective filter includes a film stack that transmits a filtered light within a range of wavelengths and reflects light not within the first range of wavelengths. The film stack includes a first metal film disposed on a substrate having a first thickness, a first dielectric film disposed on the first metal film having a second thickness, a second metal film disposed on the first dielectric film having a third thickness, and a second dielectric film disposed on the second metal film having a fourth thickness.

An optical imaging system leveraging an ultra-thin flat metalens to increase system functionality with a reduced set of imaging sensors. The optical imaging system is particularly adept at reconfiguring to and camouflaging within its external environmental.

Provided in an illumination device including a display panel including a first surface configured to display an image, a second surface opposite to the first surface, a plurality of display pixels disposed between the first surface and the second surface, and a transmission window configured to transmit light incident on the second surface through the first surface, a light source disposed at the second surface of the display panel and configured to emit light to an object toward the display panel, and a light deliverer disposed between the light source and the display panel, the light deliverer configured to deliver the light emitted from the light source to the object as flood illumination through the transmission window.

Described herein is a dynamic optical modulator including a plurality of pixels arranged in a grid, the pixels comprising a plurality of unit-cells, the unit-cell comprising a dielectric layer sandwiched between two at least partially conductive layers, wherein the optical characteristics of each of said unit-cells is controlled by the application of a voltage across each of the pixels of the plurality of pixels.

An active metasurface includes a number of periodically-repeated unit cells arranged on a substrate that each include a plasmonic waveguide shaped and sized to provide a cutoff mode that captures light of a target wavelength. The active metasurface includes an index modulation controller that controllably varies a voltage differential across each one of the periodically-repeated cells to change a phase of light incident on the metasurface.

Electrically tunable metasurfaces including an array of subwavelength metasurface unit elements are presented. The unit elements include a stacked metal-insulator-metal structure within which an active phase change layer is included. A purely insulator, metal, or coexisting metal-insulator phase of the active layer can be electrically controlled to tune an amplitude and phase response of the metasurfaces. In combination with the subwavelengths dimensions of the unit elements, the phase and amplitude response can be controlled in a range from optical wavelengths to millimeter wavelength of incident light. Electrical control of the unit elements can be provided via resistive heating produced by flow of current though a top metal layer of the unit elements. Alternatively, electrical control of the unit elements can be provided via electrical field effect produced by applying a voltage differential between the top and bottom metal layers of the unit elements.

A tunable optical metamaterial system includes a tunable optical metamaterial, an actuator module to selectively activate the tunable optical metamaterial, and a control system to selectively control the actuator module. The tunable optical metamaterial includes a substrate composed at least in part of an electroactive polymer (EAP), and an optically active particle array that includes a plurality of optically active elongated members populated spaced apart on the substrate in two or more orientations to form confocal lenses that are optically responsive to the expansion of the substrate. The control module, is configured to control the optical properties of the tunable optical metamaterial by causing the electrical activation of the substrate via the actuator module to selectively expand the substrate in a manner that alters the spacing between the optically active elongated members.

The present disclosure relates to an optoelectronic device for manipulating electromagnetic radiation. Drawbacks of conventional systems like material constraints, system complexity and tuning speed are overcome by the optoelectronic device comprising a substrate with at least one tuning structure arranged on the substrate, wherein the tuning structure comprises an electro-optical material. The tuning structure comprises a first and a second electrical contact. A cover layer covers the at least one tuning structure. An optical structure is arranged on the cover layer. A voltage source is electrically connected to the first and the second electrical contact and provided for generating electric fields within the at least one tuning structure.