Abstract: The disclosure provides an optical waveguide component and an augmented reality display device. The optical waveguide component comprises: a waveguide substrate and at least one grating group, the grating group comprising a coupling-in grating, a turning grating, and a coupling-out grating, with the turning grating and the coupling-in grating provided on two adjacent surfaces of the waveguide substrate; the coupling-in grating is configured for coupling input light into the waveguide substrate; the turning grating is configured for performing a first pupil expansion; and the coupling-out grating is configured for performing a second pupil expansion.

Abstract: The present disclosure relates to a method for efficiently producing lactic acid by fermenting brewers' spent grains. The method specifically includes the following steps: (1) adding water to brewers' spent grains after alkali pretreatment so as to adjust a solid content of a fermentation production system to 10%-15%, adding cellulase to the brewers' spent grains according to an addition amount of 5 FPU/g-10 FPU/g, carrying out hydrolysis at 50° C.-60° C. and pH of 4.5-5.2 for 20 hours-48 hours, and obtaining a prehydrolyzed substrate; and (2) inoculating hydrolysate prepared in step (1) with a lactic acid bacteria seed solution with a viable count of 1×108 CFU/mL-1×1010 CFU/mL according to an inoculation amount of 10%-15% (v/v), conducting fermentation at 40° C.-55° C. and pH of 6.0-7.2 for 72 hours-96 hours, and obtaining a fermentation broth.

Abstract: Provided is a method for preparing a non-human animal with GIGYF1 gene deletion. The non-human animal can be used to screen the use of a recombinant nucleic acid in treating specific diseases. Specifically, also provided is use of the recombinant nucleic acid in treating metabolic diseases and/or symptoms.

Abstract: Aspects of the present disclosure generally relate to two-dimensional electronic apparatuses and methods of use. A two-dimensional electronic sum frequency generation (2D-ESFG) apparatus includes an amplifier including a laser source. A broadband optical parametric amplifier (BOPA) is optically coupled to the amplifier. The BOPA includes a two-stage amplifier. An etalon is optically coupled to the amplifier. The etalon includes two or more partially reflective substrate optical flats. A noncollinear optical parametric amplifier (NOPA) is optically coupled to the amplifier. A dispersive filter pulse shaper is optically coupled to the NOPA. A synchronizer including a galvanometer mirror is optically coupled to the BOPA, the etalon, and the dispersive filter pulse shaper. A detector is optically coupled to the synchronizer.

Abstract: Aspects of the present disclosure generally relate to a new class of compositions utilized for detecting short-wave infrared (SWIR) light, to devices including the compositions, and to photodetectors including the compositions. Aspects of the present disclosure also generally relate to processes for forming the compositions, the devices, and the photodetectors. In an aspect is provided a composition that includes a nitrogen-containing compound and an all-inorganic perovskite. In an aspect, a process for forming a SWIR device is provided. The process includes forming a precursor solution comprising: a first compound (AX), a second compound, a nitrogen-containing compound or ion thereof, and a solvent. The process further includes dispersing the precursor solution on a substrate, annealing the dispersed precursor solution on the substrate by heating to form a film composition comprising: the nitrogen-containing compound or ion thereof; and an all-inorganic perovskite represented by Formula (I): ABX3 (I).

Abstract: Aspects of the present disclosure generally relate to a new class of compositions utilized for detecting short-wave infrared (SWIR) light, to devices including the compositions, and to photodetectors including the compositions. Aspects of the present disclosure also generally relate to processes for forming the compositions, the devices, and the photodetectors. In an aspect, a process for forming a SWIR device is provided. The process includes forming a precursor solution comprising: a first compound (AX), a second compound (BX), a third compound (CX3), a nitrogen-containing compound, and a solvent. The process further includes: dispersing the precursor solution on a substrate surface of a substrate and annealing the dispersed precursor solution on the substrate at an annealing temperature that is from about 100° C. to about 300° C. to form a film composition comprising: the nitrogen-containing compound or ion thereof; and a lead-free double perovskite represented by Formula (I): A2BCX6 (I).

Abstract: A use of the bile acids represented by Formula (1) and derivatives thereof in the preparation of a GPR39 agonist, as well as a drug composite which contains such bile acids and the derivatives thereof as the active ingredient, the drug composite being used to prevent, treat and/or relieve diseases associated with GPR39 activity.

Abstract: A liver-specific expressional regulatory element, including, in order from 51 to 31: a promoter of a dog serpinAl gene or a functional fragment thereof, a promoter of a Xenopus laevis vitellogenin A2 gene or a functional fragment thereof, a promoter of a Xenopus laevis albumin gene or a functional fragment thereof, and a promoter of a human serpinAl gene or a functional fragment thereof.

Abstract: Disclosed are a light guide device, an optical display system, and a display device. The light guide device includes a substrate and a first diffraction structure provided at the substrate. The first diffraction structure includes a first grating. The first grating includes a plurality of first grating units provided at intervals of a first period P1 along a first vector direction u1 and at intervals of a second period P2 along a second vector direction u2. The first vector direction u1 is intersected with the second vector direction u2, the first period P1 is longer than the second period P2, forming unequal periods in two vector directions, and the first period P1 is at least 1.5 times the second period P2.

Abstract: The disclosure discloses a projecting system. The projecting system includes a light source assembly, a polarization element, a light beam adjusting module, and a reflection component; the light beam adjusting module has an optical axis, and the light source assembly is located on a first side of the optical axis; light emitted by the light source assembly is transmitted through the polarization element to the light beam adjusting module, and at least central light of the light is incident from the first side of the optical axis into the light beam adjusting module and is shaped; light incident into the light beam adjusting module is reflected back to the light beam adjusting module by the reflection component, and at least central light of reflected light is emergent from a second side of the optical axis to form an image, and then is reflected by the polarization element and output.

Abstract: Embodiments of the present disclosure provide an optical waveguide structure, an optical module and a head-mounted display device; wherein the optical waveguide structure comprises an optical waveguide, and a coupling-out zone and at least two coupling-in zones provided on the optical waveguide; the at least two coupling-in zones are configured for coupling in light of different colors; the coupling-out zone is configured for coupling the light, which has been coupled in through the at least two coupling-in zones, out of the optical waveguide at different field angles, respectively.

Abstract: The present disclosure provides an optical waveguide structure and a head mounted display. The optical waveguide structure includes an optical waveguide body, a volume holographic element, and a liquid crystal element; the volume holographic element is provided on a first surface, and the liquid crystal element is provided on a second surface; the liquid crystal element is configured for selectively diffracting and transmitting light, the light includes a first circularly polarized light with a first polarization state which is diffracted towards the volume holographic element, the volume holographic element is configured for rotating a polarization direction of the first circularly polarized light to form a second circularly polarized light with a second polarization state which is then diffracted towards the liquid crystal element, and the second circularly polarized light is transmitted and then coupled out of the optical waveguide body.

Abstract: An optical system, including: a beam splitter, a phase retarder, a polarization reflection element, a lens group, and a second lens. The beam splitter, the phase retarder and the polarization reflection element are provided along a same optical axis, and the phase retarder is provided between the beam splitter and the polarization reflection element; the lens group and the second lens are provided along the optical axis, the lens group at least includes a first lens, and the first lens is provided on a side of the beam splitter away from the phase retarder, and the first lens satisfies: 0.7?|H1?H0/H2?H0|?3.

Abstract: Aspects of the present disclosure generally relate to short-wave infrared materials and to processes for making short-wave infrared materials. In an aspect, a composition is provided that includes: a nitrogen-containing compound or ion thereof; and a Pb-free double perovskite material. The composition can be utilized as a short-wave infrared material. The perovskite materials described herein and compositions thereof show improved stability and can be fabricated at lower costs.

Abstract: Aspects of the present disclosure generally relate to boron-doped cobalt/cobalt nitride interfacial catalysts, processes for making, and uses thereof. In an aspect, a process for forming a two-phase interface structure is provided. The process includes electrodepositing cobalt on a porous substrate. The process further includes exposing at least a portion of the cobalt deposited on the porous substrate to a boron-containing source to form a first composition comprising a boron-doped cobalt structure. The process further includes exposing at least a portion of the cobalt deposited on the porous substrate to a nitrogen-containing source to form a second composition comprising a two-phase interface structure, the two-phase interface structure comprising: a first phase comprising boron-doped cobalt; and a second phase comprising cobalt nitride.

Abstract: Aspects of the present disclosure generally relate to two-dimensional electronic apparatuses and methods of use. A two-dimensional electronic sum frequency generation (2D-ESFG) apparatus includes an amplifier including a laser source. A broadband optical parametric amplifier (BOPA) is optically coupled to the amplifier. The BOPA includes a two-stage amplifier. An etalon is optically coupled to the amplifier. The etalon includes two or more partially reflective substrate optical flats. A noncollinear optical parametric amplifier (NOPA) is optically coupled to the amplifier. A dispersive filter pulse shaper is optically coupled to the NOPA. A synchronizer including a galvanometer mirror is optically coupled to the BOPA, the etalon, and the dispersive filter pulse shaper. A detector is optically coupled to the synchronizer.

Abstract: Aspects of the present disclosure generally relate to a solar cell semiconductor substrate and methods of use. The solar cell semiconductor substrate described herein includes a base, an adhesion layer disposed on the base, a first reflective layer disposed on the adhesion layer, and a second reflective layer. A solar cell material including a polyacene having at least six carbon rings is disposed between the first reflective layer and the second reflective layer. The solar cell material has a thickness that is from about 100 nm to about 500 nm.

Abstract: Disclosed are a light guide device, a light guide assembly and a display equipment. The light guide device includes a substrate including two opposite surfaces and a sidewall connected between the two surfaces; a coupling-out pupil expansion region provided at the surface; and a reflection layer, wherein a reflection interface of the reflection layer is towards an interior of the substrate and is provided on a diffraction light path of the coupling-out pupil expansion region. The coupling-out pupil expansion region is configured to perform multiple diffraction light splits to coupling-in light coupled into the substrate, and the reflection interface is cooperated with the coupling-out pupil expansion region to reflect the light after multiple diffraction light splits through the coupling-out pupil expansion region and reflect the light through the coupling-out pupil expansion region for coupling-out imaging.

Abstract: Aspects of the present disclosure generally relate to short-wave infrared (SWIR) materials, SWIR detectors, and methods of use. In an aspect, a SWIR detector is provided and includes a conductive layer disposed over a first portion of a substrate, the conductive layer having a trench therein, and a hole transport layer disposed over at least a second portion of the substrate and within the trench of the conductive layer. The SWIR detector further includes a light conversion layer disposed over at least a portion of the hole transport layer, the light conversion layer comprising a composition having the formula AaBbMcXd, wherein: A is an organic group or ion thereof; B is an organic group, an inorganic group, or ion thereof; M is a metal or ion thereof; X is a halogen or ion thereof; and a, b, c, and d are numbers expressing amounts of A, B, M, and X.

Abstract: The present disclosure is directed to methods of making Pb-free perovskites for short-wave IR (SWIR) devices and to various Pb-free perovskite materials disclosed herein. The perovskites disclosed herein have improved chemical stability and long-term stability, while the production methods disclosed herein have improved safety and lower cost.