A metalens includes one or more regions of nanostructures. A first region of nanostructures directs a first field of view (FOV) of light incident on the first region of nanostructures to a first region of an image plane. A second region of nanostructures directs a second FOV of light incident on the second region of nanostructures to a second region of the image plane in which the second FOV is different from the first FOV, and the second region of the image plane is different from the first region of the image plane. A third region of nanostructures directs a third FOV of light to a third region of the image plane, in which the third FOV is different from the first FOV and the second FOV, and the third region of the image plane is different from the first region and the second region of the image plane.

A combination structure includes a hybrid nanostructure array and a light-absorbing layer adjacent to the hybrid nanostructure array. The hybrid nanostructure array includes a plurality of hybrid nanostructures, each hybrid nanostructure includes a stack of a first nanostructure and a second nanostructure. The first nanostructure includes a first material. The second nanostructure includes a second material. The second material has a refractive index that is higher than a refractive index of the first material. The light-absorbing layer includes a near-infrared absorbing material configured to absorb light of at least a portion of a near-infrared wavelength spectrum.

A meta lens assembly includes a first meta lens, a second meta lens arranged on an image side of the first meta lens, and a third meta lens arranged on an image side of the second meta lens, the first meta lens, the second meta lens, and the third meta lens being arranged from an object side of the meta lens assembly to an image side of the meta lens assembly facing an image sensor.

An optical structure is provided. The optical structure includes an optical element and a plurality of protrusions. The optical element has a planarized top surface. The plurality of protrusions are disposed on the planarized top surface, wherein each of the plurality of protrusions independently has a size in the subwavelength dimensions.

The present disclosure relates to a light-emitting device (100), comprising a dielectric layer (110) including a plurality of first quantum dots (112) embedded therein, wherein the plurality of first quantum dots (112) is configured to emit light of a first color; and a metamaterial structure (120) embedded in the dielectric layer (110), wherein the metamaterial structure (120) is configured to convert at least a portion of an energy released by the plurality of first quantum dots into surface plasmons.

A method of synthesizing an effective refractive index metamaterial, the method may include the steps of: a) analysing an effective index material by directing an electromagnetic plane-wave towards a surface of the metamaterial and calculating the polarization currents distribution field in the metamaterial, wherein the effective refractive index metamaterial is comprised of a plurality of layers of at least a first material having a first refractive index and at least a second material having a second refractive index; b) filtering and sampling the polarization currents distribution field according to the layers, wherein the layers comprise pre-determined parameters requirements, the parameters including at least one of: refractive indexes of the first material and the second material, effective refractive index of the layer and thickness of the layer; and c) determining a layer arrangement and thickness for the first and second materials comprising the plurality of layers.

This specification discusses a device which modulates, simultaneously or independently, the amplitude, polarization and phase of the electromagnetic radiation. This device has multiple metasurfaces, a spacer region between the metasurfaces, and an actuator for applying a force to at least one of the metasurfaces. The application of the force changes distance between at least two of the metasurfaces creating the of the electromagnetic radiation.

An octave bandwidth, achromatic metalens configured to operate in light wavelengths having a range of approximately 640 nm to 1200 nm.

A sensor measurement device includes: an impedance analyzer to determine an impedance of a sample; a first antenna configured to generate electromagnetic radiation having a first wavelength; an impedance-matching device, positioned in a radiation path between the first antenna and the sample, to receive the electromagnetic radiation from the first antenna and transmit electromagnetic radiation of the first wavelength into the sample, the impedance-matching device comprising a metasurface including: a substrate having a thickness no greater than the first wavelength of the electromagnetic radiation; and a plurality of elements supported by the substrate, wherein: the plurality of elements are spaced apart from one another across the substrate, each element has a first dimension no greater than the first wavelength of the electromagnetic radiation, and at least two elements of the plurality of elements differ in one or more of shape or size; and a second antenna configured to receive the electromagnetic radiation from the sample.

An optical lens assembly to accept various illumination ellipticity profiles as angle of incidence (AOI) varies is provided. The optical lens assembly may include an optical stack, such as pancake optics. The optical lens assembly may also include a switchable optical element communicatively coupled to a controller. The optical lens assembly may further include an optical element, such as a Pancharatnam-Berry phase (PBP) lens, also known as a geometric phase lens (GPL). In some examples, the switchable optical element may be a switchable have wave plate, which may be configured, via application of optical power by the controller, so that the optical lens assembly may accept varying illumination ellipticity profiles as angle of incidence (AOI) increases.