Abstract: The present disclosure relates to a colored radiative cooling device that includes a selective heat transfer layer between a spectral selective filter and a thermal emitter, and a method of cooling an object by using the colored radiative cooling device.

Abstract: An image sensor pixel includes first, second and third PIN photodiodes having respective first, second and third widths, which are unequal to each other, and respective first, second and third absorption spectra associated therewith, which are unequal to each other. The first absorption spectra is a first linear combination of three color matching functions divided by a wavelength of light incident the image sensor, the second absorption spectra is a second linear combination of the three color matching functions divided by a wavelength of light incident the image sensor, and the third absorption spectra is a third linear combination of the three color matching functions divided by a wavelength of light incident the image sensor.

Abstract: An optical measurement device according to an aspect of the present disclosure includes a universal metasurface on which light is incident, a polarization sensor configured to measure a polarization state of light passing through the universal metasurface, and a controller configured to collect a quantitative differential interference contrast (QDIC) image for the x polarization of incident light that is collected by the polarization sensor, a QDIC image for y polarization, and a quantitative relative phase (QRP) image representing a relative phase difference between the x polarization and y polarization and configured to calculate intensity, a phase or polarization information of the incident light.

Abstract: A dielectric structure may include: an insulating layer extending in a first direction; a plurality of conductor layers disposed on a first surface of the insulating layer and spaced apart from each other in the first direction; at least one semiconductor layer disposed on a second surface of the insulating layer, opposite to the first surface, and overlapping each of at least two conductor layers adjacent to each other among the plurality of conductor layers in a second direction intersecting the first direction; a first protective layer covering the plurality of conductor layers on the first surface of the insulating layer; and a second protective layer covering the at least one semiconductor layer on the second surface of the insulating layer.

Abstract: A light sensing device includes a semiconductor layer including a distributed Bragg reflector including a first surface of the semiconductor layer, and a photoelectric conversion unit including a second surface of the semiconductor layer, and the distributed Bragg reflector has a plurality of holes each having, in a cross-sectional view, a width gradually changing from a first width to a second width according to a width change period; a first electrode in one region of the semiconductor layer; and a second electrode on the second surface of the semiconductor layer and having a reflective metal.

Abstract: A light sensing device includes a semiconductor layer including a distributed Bragg reflector including a first surface of the semiconductor layer, and a photoelectric conversion unit including a second surface of the semiconductor layer, and the distributed Bragg reflector has a plurality of holes each having, in a cross-sectional view, a width gradually changing from a first width to a second width according to a width change period; a first electrode in one region of the semiconductor layer; and a second electrode on the second surface of the semiconductor layer and having a reflective metal.

Abstract: The present disclosure relates to a radiative cooling device which is sensitive to the ambient temperature and in which the emissivity changes depending on the infrared wavelength range and emission angle, and a method of cooling an object using the radiative cooling device.

Abstract: An optical measurement device according to an aspect of the present disclosure includes a universal metasurface on which light is incident, a polarization sensor configured to measure a polarization state of light passing through the universal metasurface, and a controller configured to collect a quantitative differential interference contrast (QDIC) image for the x polarization of incident light that is collected by the polarization sensor, a QDIC image for y polarization, and a quantitative relative phase (QRP) image representing a relative phase difference between the x polarization and y polarization and configured to calculate intensity, a phase or polarization information of the incident light.

Abstract: A phase shifting device may include a plurality of metal layers and a plurality of first dielectric layers, a metal layer of the plurality of metal layers and a first dielectric layer of the plurality of first dielectric layers being alternately stacked in a first direction, and a second dielectric layer disposed on a side surface of the stacked structure in a second direction, wherein the first dielectric layer includes a first material having a first dielectric constant and the second dielectric layer includes a second material having a second dielectric constant, and wherein the second dielectric constant is greater than the first dielectric constant.

Abstract: A light sensing device includes a semiconductor layer including a distributed Bragg reflector including a first surface of the semiconductor layer, and a photoelectric conversion unit including a second surface of the semiconductor layer, and the distributed Bragg reflector has a plurality of holes each having, in a cross-sectional view, a width gradually changing from a first width to a second width according to a width change period; a first electrode in one region of the semiconductor layer; and a second electrode on the second surface of the semiconductor layer and having a reflective metal.

Abstract: The present disclosure relates to a radiative cooling device based on incidence and emission angle control using an angle controller, and a method of cooling an object using the radiative cooling device.

Abstract: The present disclosure relates to a colored radiative cooling device that includes a selective heat transfer layer between a spectral selective filter and a thermal emitter, and a method of cooling an object by using the colored radiative cooling device.

Abstract: Provided in a phase shifting device including a plurality of metal layers and a plurality of first dielectric layers, a metal layer of the plurality of metal layers and a first dielectric layer of the plurality of first dielectric layers being alternately stacked in a first direction, and a second dielectric layer disposed on a side surface of the stacked structure in a second direction, wherein the first dielectric layer includes a first material having a first dielectric constant and the second dielectric layer includes a second material having a second dielectric constant, and wherein the second dielectric constant is greater than the first dielectric constant.

Abstract: Provided in a phase shifting device including a plurality of metal layers and a plurality of first dielectric layers, a metal layer of the plurality of metal layers and a first dielectric layer of the plurality of first dielectric layers being alternately stacked in a first direction, and a second dielectric layer disposed on a side surface of the stacked structure in a second direction, wherein the first dielectric layer includes a first material having a first dielectric constant and the second dielectric layer includes a second material having a second dielectric constant, and wherein the second dielectric constant is greater than the first dielectric constant.

Abstract: The present disclosure relates to a radiative cooling device which is sensitive to the ambient temperature and in which the emissivity changes depending on the infrared wavelength range and emission angle, and a method of cooling an object using the radiative cooling device.

Abstract: The present disclosure provides a planar metalens and a cover glass including the planar metalens.

Abstract: A color filter according to an exemplary embodiment of the present invention includes a substrate; and a plurality of laminated members disposed with a predetermined period on the substrate, wherein each laminated member includes: a first metal layer; a dielectric layer positioned on the first metal layer; and a second metal layer positioned on the dielectric material, and the laminated member simultaneously excites electrical resonance and magnetic resonance in a visible ray region and transmits light that does not resonate, or a first single layer metal member and a plurality of second single layer metal members having different diameter from each other are included, and the single layer metal member excites the electric resonance to block light in the visible ray and transmits light for the wavelength in which the magnetic resonance and the electrical resonance of the single layer metal member are simultaneously excited.

Abstract: Provided in a phase shifting device including a plurality of metal layers and a plurality of first dielectric layers, a metal layer of the plurality of metal layers and a first dielectric layer of the plurality of first dielectric layers being alternately stacked in a first direction, and a second dielectric layer disposed on a side surface of the stacked structure in a second direction, wherein the first dielectric layer includes a first material having a first dielectric constant and the second dielectric layer includes a second material having a second dielectric constant, and wherein the second dielectric constant is greater than the first dielectric constant.

Abstract: An antenna and a method of manufacturing the antenna. The antenna includes an antenna structure, and a metamaterial that has a high dielectric constant and that includes metal patterns arranged at regular intervals.

Abstract: A wideband ultra-high refractive index mesoscopic crystal structure including: a first layer with high-conductivity unit bodies arranged in a matrix form, and a low-conductivity material disposed between the high-conductivity unit bodies; a second layer with high-conductivity unit bodies arranged in a matrix form, and a low-conductivity material disposed between the high-conductivity unit bodies; a first shield layer existing between the first and second layers and made of a low-conductivity material; and a second shield layer made of a low-conductivity material disposed on a side of the second layer such that the second layer is disposed between the first shield layer and the second shield layer, wherein the high-conductivity unit bodies in the first layer overlap the high-conductivity unit bodies arranged in the second layer, and wherein the first layer, the first shield layer, the second layer, and the second shield layer are sequentially stacked one or more times.