An integrated laminate structure (702a, 702b, 801) adapted for application in the context of solar technology, includes a first carrier element (704, 804), such as a piece of plastic or glass, optionally including optically substantially transparent material enabling light transmission therethrough, a second carrier element (702, 802) provided with at least one surface relief pattern (802a) including a number of surface relief forms (708) and having at least one predetermined optical function relative to incident light, the second carrier element including optically substantially transparent material enabling light transmission therethrough, the first and second carrier elements being laminated together such that the at least one surface relief pattern has been embedded within the established laminate structure and a number of related cavities (709) have been formed at the interface of the first and second carrier elements. An applicable method of manufacture is presented.

A contact lens comprises a transparent pupil region and an iris region surrounding the pupil region. The iris region comprises a colored pattern portion. A plurality of pigments are dispersed in the colored pattern portion. The disclosure also provides a method for making a contact lens.

Systems and methods are described herein for an optical beam-steering device that includes an optical transmitter and/or receiver to transmit and/or receive optical radiation from an optically reflective surface. An array of adjustable dielectric resonator elements is arranged on the surface with inter-element spacings less than an optical operating wavelength. A controller applies a pattern of voltage differentials to the adjustable dielectric resonator elements. The pattern of voltage differentials corresponds to a sub-wavelength reflection phase pattern for reflecting the optical electromagnetic radiation. One embodiment of a dielectric resonator element includes first and second dielectric members extending from the surface. The dielectric resonator elements are spaced from one another to form a gap or channel therebetween. A voltage-controlled adjustable refractive index material is disposed within the gap.

Embodiments include a LIDAR scanning system. A laser is configured to emit pulses of light. A transmit reconfigurable-metasurface is configured to reflect an incident pulse of light as an illumination beam pointing at a field of view. This pointing is responsive to a first holographic beam steering pattern implemented in the transmit reconfigurable-metasurface. A receive reconfigurable-metasurface is configured to reflect a return of the illumination beam to an optical detector. This pointing is responsive to a second holographic beam steering pattern implemented in the receiving reconfigurable-metasurface. An optical detector includes an array of detector pixels. Each detector pixel includes (i) a photodetector configured to detect light in the return of the illumination beam and (ii) a timing circuit configured to determine a time of flight of the detected light. The optical detector is also configured to output a detection signal indicative of the detected light and the time of flight.

A 2D hologram system with a matrix addressing scheme is provided. The system may include a 2D array of sub-wavelength hologram elements integrated with a refractive index tunable core material on a wafer substrate. The system may also include a matrix addressing scheme coupled to the 2D array of sub-wavelength hologram elements and configured to independently control each of the sub-wavelength hologram elements by applying a voltage.

A hologram system may include a hologram chip comprising a wafer substrate having a first plurality of conductive pads on a hologram surface region connected to a second plurality of conductive pads on an interconnect surface region. The hologram chip may also include an array of sub-wavelength hologram elements integrated with a refractive index tunable core material on the hologram region of the wafer substrate. The hologram system may also include a control circuit chip having a third plurality of conductive pads connected to the second plurality of conductive pads on the interconnect region of the wafer substrate. The interconnect region is on the same side of the wafer substrate as the hologram region. The first plurality of conductive pads is directly connected to the array of sub-wavelength hologram elements.

The method is provided for fabricating an optical metasurface. The method may include depositing a conductive layer over a holographic region of a wafer and depositing a dielectric layer over the conducting layer. The method may also include patterning a hard mask on the dielectric layer. The method may further include etching the dielectric layer to form a plurality of dielectric pillars with a plurality of nano-scale gaps between the pillars.

Systems and methods are described herein for an optical beam-steering device that includes an optical transmitter and/or receiver to transmit and/or receive optical radiation from an optically reflective surface. An array of adjustable dielectric resonator elements is arranged on the surface with inter-element spacings less than an optical operating wavelength. A controller applies a pattern of voltage differentials to the adjustable dielectric resonator elements. The pattern of voltage differentials corresponds to a sub-wavelength reflection phase pattern for reflecting the optical electromagnetic radiation. One embodiment of a dielectric resonator element includes first and second dielectric members extending from the surface. The dielectric resonator elements are spaced from one another to form a gap or channel therebetween. A voltage-controlled adjustable refractive index material is disposed within the gap.

An article having a nanotextured surface with hydrophobic properties, said nanotextured surface comprising an array of pillars (71) defined by a surface fraction (?s) of the pillars, a pitch (P) of the pillars and an aspect ratio (H/2R) of the pillars, wherein: the surface fraction (s) is equal or greater to 2% and equal or less to 80%; the pitch (P) is equal or less to 250; the aspect ratio (H/2R) is equal or less to 2.4, where H is the height of the pillars and R is the radius of the pillars; the pitch (P), the height (H), the radius (R) are expressed in nanometers (nm); the nanotextured surface comprises at least partially a hydrophobic material.

A method of manufacturing a PDMS sheet that ensures good adhesion, handleability and stability to metal thin films or metal patterns of any desired shape. Given a low-molecular-weight siloxane of a cyclic structure represented by [Si(CH.sub.3).sub.2O].sub.k where k is an integer of 3 to 20 inclusive, the polydimethylsiloxane sheet has a structure where the content of the low-molecular-weight siloxane at the pattern-formation surface is more than that of the low-molecular-weight siloxane at the base surface, and a spacing between the adjacent metal patterns is variable by deformation of the polydimethylsiloxane sheet.