72 results about "Nonlinear optical material" patented technology

The invention discloses a Mini LED package test method and test equipment. The method comprises the following steps: performing light irradiation on Mini LED package by using a reverse light path tracking technology to obtain an interference pattern and determine a function sensitive area; injecting a quantum dot fluorescent marker into the functional sensitive area to carry out multispectral dynamic monitoring; performing surface plasma resonance spectrum scanning on the functional sensitive area to obtain surface plasma resonance response data; performing an acoustic stimulation test on the functional sensitive area according to the obtained data to obtain acoustic response data; and performing a compensation test by using the nonlinear optical material layer to obtain performance attenuation prediction data. According to the technical scheme, accurate detection and performance prediction of the miniature optical structure in Mini LED packaging are achieved, and potential early failure symptoms can be effectively recognized.

The present invention addresses the problem of providing: a composition and a polymer compound which are each capable of suppressing aggregation of a dye that has a nonlinear optical effect in a nonlinear optical material, and exhibiting a higher electro-optic effect with respect to the absorbance after poling; a nonlinear optical element which is obtained using the composition; and an optical modulator which comprises the nonlinear optical element and operates on the basis of an electro-optic effect. The present invention pertains to a composition which contains a compound represented by formula (1) and a compound represented by formula (3), wherein the content of the compound represented by formula (3) is 0.0001 mol% to 25 mol% inclusive relative to the total content of the compound represented by formula (1) and the compound represented by formula (3).　(Definitions of groups are as set forth in the description.)

A thermal sensor, a thermal sensor array, an electronic apparatus including the thermal sensor, and an operating method of the thermal sensor are provided. The thermal sensor includes a first region onto which first infrared light is incident, a visible light radiation region configured to radiate visible light generated by incidence of the first infrared light on the first region, a second region onto which second infrared light is incident, and an image sensor configured to receive the visible light radiated from the visible light radiation region. The first region, the second region, and the visible light radiation region each include a nonlinear optical material.

The invention belongs to the technical field of nonlinear optical crystals, and particularly relates to a zeolite-like structure nitrogen oxide silicate nonlinear optical crystal and a preparation method and application thereof, the chemical general formula of the crystal is Ba3Si3N5OCl, the crystal belongs to a hexagonal system, the cell parameters of the crystal are as follows: a is 9.5147 (6), c is 5.5002 (4), V is 431.22 (6) 3, Z is 2, the space group is P-62c, and the crystal has a non-centrosymmetric structure. The Ba3Si3N5OCl crystal provided by the invention is used as a novel zeolite-like structure nitrogen oxide silicate, successfully integrates nonlinear optical activity and phase matching capability, can generate frequency doubling response which is about 0.2 times of KDP (potassium dihydrogen phosphate) under 1064 nm laser pumping, and can realize phase matching, so that the Ba3Si3N5OCl crystal becomes a nonlinear optical material with practical device application potential.

The application discloses a chain-like core-shell structure crystal and a preparation method and application thereof, the crystal is chloroethyl HDABCO-sodium bromofluoroborate, a structural formula of the crystal is [CH2ClCH2N(CH2CH2)3NH]4·[(Na6Br)(BF4) 13 ], a molecular structure presents a one-dimensional chain framework with infinite extension, adjacent chains are connected through N-H...F linear hydrogen bonds and chloroethyl-HDABCO, so that the compound has polarity and has a mid-infrared second-order nonlinear effect. In addition, the ultraviolet band edge absorption of the material is close to the near ultraviolet region, so that the material is expected to be close to inorganic ultraviolet nonlinear optical materials. The crystal is obtained through room temperature volatilization crystallization, has good thermal stability, and has potential application values in the fields of laser frequency doubling conversion, electro-optic modulators, deep ultraviolet nonlinear optics and shutter used for high-speed photography.

A single-material-double-process parametric laser-wavelength converter includes a pump-laser source, a nonlinear optical material, a first optical reflective element, and a second optical reflective element. The pump-laser source is configured to emit a pump-laser pulse light. The nonlinear optical material receives the pump-laser pulse and generates a signal-laser pulse and a partially depleted pump-laser pulse through optical parametric amplification. The first optical reflective element is configured to reflect the signal-laser pulse back to the same nonlinear optical material. The second optical reflective element is configured to reflect the partially depleted pump-laser pulse back to the same nonlinear optical material. With an appropriate adjustment on the reflecting path lengths, the nonlinear optical material is configured to receive the temporally synchronized signal-laser pulse and the partially depleted pump-laser pulse to generate an idler output through difference frequency generation. Both optical parametric amplification and difference frequency generation occur in the same nonlinear optical material.

This application discloses an inorganic compound crystal, its preparation method, and its applications. The inorganic compound crystal has the chemical formula Ga2(OH)(TeO3)(Te2O5)Br, belongs to the orthorhombic crystal system, has a space group of Pca21, and unit cell parameters α=β=γ=90°, Z=4. The inorganic compound crystal is prepared using a hydrothermal method. Under 1064nm laser irradiation, the powder frequency doubling intensity of the inorganic compound crystal Ga2(OH)(TeO3)(Te2O5)Br is 9.8 times that of KH2PO4(KDP), and phase matching can be achieved, indicating its significant potential application value as a nonlinear optical material.

A graphite-phase carbon nitride composite material covalently modified with a polymethyl methacrylate polymer containing a porphyrin group at its end, and a preparation method thereof, belong to the technical field of nonlinear optical materials. The composite material is characterized by being formed by covalently modifying graphite-phase carbon nitride with polymethyl methacrylate containing a porphyrin group at its end. The preparation method comprises first preparing polymethyl methacrylate containing a porphyrin group at its end by atom transfer radical polymerization, and then covalently linking the polymethyl methacrylate with a graphite-phase carbon nitride covalently modified with benzyl alcohol to prepare a graphite-phase carbon nitride composite material covalently modified with polymethyl methacrylate containing a porphyrin group at its end. The composite material is a nonlinear optical material. This method can produce a composite material with excellent nonlinear optical properties, and the nonlinear optical properties of the composite material can be controlled by varying the polymer of the porphyrin polymer.

A photonic integrated circuit (PIC) with a first structure of a ordinary optical material is enhanced with a second structure of a nonlinear optical material. The second structure provides or enhances nonlinear optical effects within the PIC. The first structure and the second structure may be in distinct layers. The first structure may be directly over and in contact with the second structure. Alternatively, the first structure and the second structures may be evanescently coupled while being vertically separated by a layer of cladding material. Lateral spacing may be used in combination with vertically spacing to precisely control a degree coupling between the first structure and the second structure.

The invention discloses a sulfur-arsenic-strontium-sodium compound and a sulfur-arsenic-strontium-sodium nonlinear optical crystal as well as a preparation method and application thereof. The chemical formula of the sulfur-arsenic-strontium-sodium nonlinear optical crystal is Na4SrAs2S8, the sulfur-arsenic-strontium-sodium nonlinear optical crystal is of a non-centrosymmetric structure and belongs to a tetragonal system, and a space group is that cell parameters are alpha = beta = gamma = 90 degrees, Z = 2 and V = 701.57 (5). The sulfur-arsenic-strontium-sodium nonlinear optical crystal provided by the invention has a relatively large nonlinear optical coefficient and relatively wide transmission wave band and band gap. Meanwhile, the crystal meets the same-component melting characteristic, is easy to grow, cut, grind, polish and preserve, is stable in air, is not easy to deliquesce and is insoluble in water, so that the crystal is expected to become a new-generation novel middle-infrared band nonlinear optical material with excellent comprehensive performance, and can be effectively applied to a wide-spectrum-range tunable laser system.

The invention discloses an organic and inorganic compound crystal (H11C4N2) CdI3 as well as a preparation method and application thereof. The organic and inorganic compound crystal is a hybrid crystal, the chemical formula is (H11C4N2) CdI3, the organic and inorganic compound crystal belongs to a monoclinic system, the space group is Cc, and the cell parameters are as follows: a = 14.36-14.38, b = 7.13-7.15, c = 13.77-13.79, alpha = gamma = 90 degrees, beta = 121.2-121.4 degrees, and Z = 4. The crystal is prepared by a hydrothermal method. The organic-inorganic hybrid crystal has excellent second-order nonlinear optical performance, can output very strong 532 nm laser under 1064 nm laser irradiation, has a powder SHG coefficient 6 times that of KH2PO4 (KDP), can realize phase matching, and is a second-order nonlinear optical material with potential application value.

The present invention relates to the application of a methylene diboric acid second-order nonlinear optical crystal material in the field of nonlinear optics. The chemical formula of the crystal material is CH6B2O4, the molecular weight is 103.68, it belongs to the tetragonal crystal system, its space group is I41md, the unit cell parameters are α=β=γ=90°, Z=4, and the unit cell volume is . The methylene diboric acid crystal material of the present invention has excellent optical properties. Under 1064nm laser irradiation, the powder frequency harmonic intensity is approximately 0.3 times that of potassium dihydrogen phosphate crystal, and phase matching can be achieved. In addition, the single crystal preparation method of the second-order nonlinear optical material is simple, and its ultraviolet absorption cutoff edge is less than 190nm. These advantages make it have important application potential in the fields of laser frequency conversion, optical information processing, holographic storage, and optical communication.

This invention relates to a method for preparing a nonlinear optical material and its application, specifically a magnesium aminodiacetate dihydrate compound. The molecular formula of the crystal is Mg[NH2(CH2COO)2]·2H2O. The Mg[NH2(CH2COO)2]·2H2O crystal does not have a center of symmetry, belongs to the tetragonal crystal system, has a space group of P-421c, and has cell parameters of α=β=γ=90°, Z=2. The nonlinear optical crystal of this invention has a large frequency doubling effect; at the same time, its ultraviolet absorption edge is 225nm, thus belonging to the tetragonal crystal system, with a space group of P-421c and cell parameters of α=β=γ=90°, Z=2. The nonlinear optical crystal can achieve the second harmonic of Nd:YAG (λ=1.064μm); and it can be predicted that the Mg[NH2(CH2COO)2]·2H2O crystal can be used in the third harmonic generator of Nd:YAG.

The application belongs to the field of nonlinear optical materials, and relates to a kind of ultraviolet nonlinear optical crystal material and its preparation method and application.The crystal chemical formula of the ultraviolet nonlinear optical crystal material is Zn (C5H4NO) 2, C5H4NO represents 4-hydroxy pyridine, 4-hydroxy pyridine is combined with Zn 2+ Form [ZnN2O2] tetrahedron by coordination bond;The crystal belongs to the orthorhombic system, and the space group is Fdd2.The band gap of the ultraviolet nonlinear optical crystal material is 4.40eV, the second harmonic generation is as high as 13.6xKDP, the birefringence Δn at 532nm wavelength is 0.073, the birefringence Δn at 1064nm wavelength is 0.074, and it shows photoluminescence characteristics, has phosphorescence with a lifetime of 558ms under the excitation light with a wavelength of 330-420nm, and blue afterglow with a naked eye visible and a duration of 5s.In addition, the ultraviolet nonlinear optical crystal material has strong water resistance, thermal stability and environmental stability, and has good application prospect in the field of nonlinear optical materials.

The invention relates to a second-order nonlinear optical material crystal amino methanesulfonic acid as well as preparation and application thereof. The chemical formula of the crystal is O3SCH2NH3, the molecular weight of the crystal is 111.12, the crystal belongs to a monoclinic system, the space group of the crystal is Cm, the cell parameters are alpha = gamma = 90 degrees, beta = 129.7-131.7 degrees, Z = 2, and the cell volume of the crystal is structurally characterized in that the crystalline material is a three-dimensional frame formed by connecting [O3SCH2NH3] elements through hydrogen-bond interaction. The amino methanesulfonic acid crystal material has excellent optical performance, and under 1064nm laser irradiation, the powder frequency doubling intensity is about 3.8 times that of a KH2PO4 (KDP) crystal; under the irradiation of 532 nm laser, the frequency doubling strength of the powder is about 0.7 time of that of the beta-BaB2O4 (BBO) crystal, and phase matching can be realized. Besides, the crystal material has moderate birefringence at 546 nm, the ultraviolet absorption cut-off edge is smaller than 170 nm, and the crystal material has stable physical and chemical properties and has important application value in the photoelectric fields of photoetching, laser frequency conversion, environmental monitoring and the like.

This application discloses a diamond-like carbon (DLC) crystal material, its preparation method, and its application as an infrared nonlinear optical material, belonging to the field of crystal preparation technology. The DLC crystal material has a triclinic structure with the chemical formula AM5Q8; wherein A is selected from at least one of Na, K, Rb, and Cs; M is selected from at least one of Ga and In; and Q is selected from at least one of S, Se, and Te. This crystal material exhibits a frequency doubling effect 0.5-5 times that of AgGaS2 and a laser damage threshold 1-50 times that of AgGaS2, demonstrating significantly improved performance and making it a potential infrared nonlinear optical material.

The invention relates to the field of nonlinear optical materials, and discloses a mixed bonded isothiocyanate nonlinear optical crystal and a preparation method thereof.The preparation method comprises the following steps that a zinc source is dissolved in deionized water to obtain a zinc source solution, and a sulfur source is dissolved in deionized water to obtain a sulfur source solution; mixing the solutions, heating and stirring to form a [SZn4] covalent core precursor suspension; sequentially adding 1, 2, 4-triazole, thiocyanate and triethanolamine into the suspension liquid, and uniformly stirring; and placing the obtained mixture in a reaction kettle for temperature programming reaction and constant-temperature reaction, then performing temperature programming cooling to room temperature, and filtering, washing and drying to obtain the crystal. By constructing a stable [SZn4] covalent core and regulating and controlling directional arrangement of NCS-and C2H2N3 ligands, effective superposition of microscopic nonlinear polarizability is realized, so that the material obtains higher second harmonic response, the thermal stability of the crystal is improved, and the optical band gap is widened.

The present application relates to a kind of tunable porphyrin-cadmium complex maykine nanometer nonlinear optical material and its preparation and application, the rotatability of single bond in organic matter is designed two porphyrin-cadmium complex, and it is connected to the surface of two-dimensional few-layer maykine by substitution reaction key.The porphyrin-cadmium complex of one of them occurs rotation due to different bridging groups, different steric hindrance, induces the conjugation degree of organic component to change greatly, to cause two materials to generate response for different pulse scale (nanosecond and femtosecond) laser respectively.Compared with prior art, the material configuration is changed by bridging group in the present application, so as to change the coupling degree of material, excited state lifetime and its nonlinear optical performance, so that the material has selectivity for laser of different pulse scale, and has good application potential for the screening and switching type scene of complex laser.

An optical device is described. At least a portion of the optical device comprises one or more ferroelectric nonlinear optical materials and is processed using ultraviolet lithography. In some aspects, the at least a portion of the optical device is processed using deep ultraviolet lithography. In some aspects, a short-range root mean square surface roughness of a sidewall of the at least a portion of the optical device is less than ten nanometers. In some aspects, the at least a portion of the optical device has a loss of no more than 2 dB / cm.

The invention discloses an ultralow-threshold high-order nonlinear optical response composite thin film device and a preparation method thereof, and belongs to the technical field of nonlinear optical and micro-nano optical devices. The invention provides a high-performance thin-film device formed by compounding a gravity-assisted dielectric microsphere rapid large-area close-packed self-assembled array in a low-density solution medium and a high-order nonlinear luminescent material, the excitation threshold of the ultrahigh-order nonlinear luminescent material is remarkably reduced through the field enhancement effect of the dielectric microsphere array, and the performance of the high-performance thin-film device is improved. And meanwhile, the excellent high-order nonlinear optical response capability is kept. The high-order nonlinear optical material breaks through the limitation of the traditional high-order nonlinear optical material, greatly expands the practical application scene of the nonlinear optical technology, and has a wide industrialization prospect.

The invention provides a method for regulating and controlling the nonlinear absorption type of a DAST-based composite film and a preparation process of the DAST-based composite film, and relates to the technical field of nonlinear optical materials. The method comprises the following steps: compounding a guest photoelectric sensitive material DAST and a subject flexible material PMMA by adopting a blade coating technology to obtain a binary DAST / PMMA subject-guest composite film; during the process, the mass fraction of the object photoelectric sensitive material in the composite film is adjusted, so that mutual conversion between a nonlinear anti-saturated absorption behavior and a saturated absorption behavior of the composite film in a femtosecond trepanning Z scanning laser system is successfully realized. Compared with existing nonlinear absorption type regulation and control technologies such as band gap engineering of two-dimensional inorganic materials, micro-nano structure construction of organic materials, functional group modification and the like, the regulation and control method is simpler, lower in cost and more beneficial to industrial processing, and has good practical application potential in the fields of laser protection, laser mode locking, optical switches and the like.

The invention belongs to the field of nonlinear optical materials, and discloses a noble metal nanoparticle loaded chiral non-planar covalent organic framework composite material as well as a preparation method and application thereof. The composite material takes a chiral non-planar covalent organic framework as a carrier, and noble metal nanoparticles are uniformly distributed on the carrier; and the chiral non-planar covalent organic framework is R-TpPz, S-TpPz, R-TpDz or S-TpDz. The preparation method comprises the following steps: adding the chiral non-planar covalent organic framework into a water-soluble noble metal salt solution, stirring at room temperature in a dark place until noble metal ions are fully adsorbed into the chiral non-planar covalent organic framework, and airing at room temperature in a dark place; and placing the aired sample in a vacuum environment, and carrying out thermal reduction at 80-100 DEG C for 10-12 h to obtain a target product. The composite material is applied as a third-order nonlinear optical material. According to the invention, precious metal nanoparticles are creatively loaded in a chiral non-planar covalent organic framework, so that active regulation and control of nonlinear optical properties are realized.

The invention discloses a lanthanum ion doped oxygen calcium yttrium borate nonlinear optical crystal material and a preparation method thereof, the lanthanum ion doped oxygen calcium yttrium borate nonlinear optical crystal material belongs to a monoclinic system, the space group is Cm, the chemical formula is La0.1: Y0. 9Ca4O (BO3) 3, the frequency multiplication coefficient is 2 * KDP, the ultraviolet cut-off edge is less than 200 nm, and no absorption peak with the intensity greater than or equal to 0.2 cm <-1 > exists in the range of 200-2500 nm. Therefore, the lanthanum ion doped yttrium calcium oxide borate crystal can be used as a nonlinear optical material with a wide application prospect in the field of optical parameter chirped pulse amplification.

The application discloses application of In2Te5 crystal in preparation of a nonlinear optical device in an infrared wave band. The In2Te5 crystal belongs to a monoclinic system, a Cc space group, has a cell parameter of alpha = gamma = 90 DEG, beta = 91.65 DEG, z = 4, and a unit cell volume of 0.56. The In2Te5 crystal can be used as a nonlinear optical material in preparation of a nonlinear optical device, and its frequency doubling coefficient is about 2-3 times of that of a ZnGeP2 crystal and 15 times of that of an AgGaS2 crystal. The infrared transmission range of the In2Te5 crystal can reach 30 microns. The optical birefringence of the In2Te5 crystal can reach 0.56, so the In2Te5 crystal can be used as a good mid-infrared nonlinear optical material, a mid-infrared photoconductive material and a mid-infrared birefringent material, and can be widely applied in various nonlinear optical fields, especially in the nonlinear optical application in the mid-infrared wave band.

The invention relates to a one-dimensional pyrenyl organic framework nonlinear optical material as well as preparation and application thereof. The material is prepared from a pyrenyl amino monomer (Py) and different dialdehyde monomers (PTDE, PTBE and PDA) through direct Schiff base condensation reaction under a solvothermal condition, a series of one-dimensional linear organic framework material (COF) chain segments are constructed, and a thin film material is further prepared. The obtained material has highly ordered crystallinity, an expanded pi-conjugated skeleton and an obvious donor-acceptor (D-A) charge transfer channel. The one-dimensional pyrenyl D-A COF (Py-PTDE, Py-PTBE and Py-PDA) has the advantages that the one-dimensional pyrenyl D-A COF (Py-PTDE, Py-PTBE and Py-PDA) has the obvious RSA (Reverse Saturated Absorption) effect under the excitation of femtosecond laser (800 nm and 1550 nm) for the first time; compared with the prior art, in particular to a Py-PTDE material, the effective nonlinear absorption coefficient (beta eff) of the Py-PTDE material reaches 116.89 cm. GW <-1 > and 337.03 cm. GW <-1 > at 800 nm and 1550 nm respectively, so that the Py-PTDE material is obviously superior to a precursor material and another two COF materials, and shows a lower optical limiting threshold value at a near-infrared band. The excellent performance is mainly derived from more effective D-A interaction, narrower optical band gap and more efficient intramolecular charge transfer channel in the material. The material disclosed by the invention is simple in preparation method and high in repeatability, and the obtained COF film has excellent thermal stability and optical stability, can be directly used for preparing optical limiting devices and ultrafast optical response devices and can be applied to other three-order nonlinear optical fields.

This invention belongs to the field of inorganic nonlinear optical materials technology, and particularly relates to a deep ultraviolet-transmitting potassium scandium sulfate nonlinear optical crystal, its preparation method, and its applications. The crystal has the chemical formula K3Sc(SO4)3, belongs to the monoclinic crystal system, and has different space groups at different temperatures: the space group below 200K is Pc (No. 7), and the space group above 202K is Ia (No. 9). The phase transition temperature of the crystal is between 200 and 202K. The potassium scandium sulfate nonlinear optical crystal of this invention has excellent nonlinear optical performance, with a powder frequency doubling intensity of approximately 1.62 times KDP, a wide transmission range, and a short deep ultraviolet cutoff edge (190 nm), and can achieve frequency-doubled laser output of Nd:YAG (1064 nm) lasers.

The invention discloses an inorganic compound crystal HLa3A3 (IO3) 13 as well as a preparation method and application thereof, and belongs to the field of nonlinear optical materials. The chemical formula of the inorganic compound crystal is HLa3A3 (IO3) 13, and A is Na and / or Ag. The two inorganic compound crystals have good nonlinear optical performance, 532 nm green light is output under 1064 nm laser irradiation, the SHG coefficients of HLa3Na3 (IO3) 13 powder and HLa3Ag3 (IO3) 13 powder are about 2.19 times and 0.95 times that of KH2PO4 (KDP), and the HLa3Na3 (IO3) 13 powder and the HLa3Ag3 (IO3) 13 powder have good potential utilization value as nonlinear optical materials.

The application discloses a deep-shift frequency super-resolution microscopic chip based on a nonlinear evanescent field and an imaging method thereof, and belongs to the field of shift frequency super-resolution microscopic imaging. The deep-shift frequency super-resolution imaging chip comprises, from bottom to top, a substrate layer, a nonlinear optical material film layer, a surface plasmon film system and a microstructure layer which are sequentially stacked. A polygonal hole slot is entirely provided in the central region of the surface plasmon film system and the microstructure layer, and the exposed part of the nonlinear optical material film layer serves as an imaging sample placement area. A plurality of groups of microstructures are engraved on the upper surface of the microstructure layer around the polygonal hole slot. The application utilizes the nonlinear four-wave mixing effect to excite, control and enhance the super-large wave vector evanescent field and applies the super-large wave vector evanescent field to shift frequency super-resolution imaging, solves the problem that the wave vector of the evanescent field provided by a natural waveguide material is limited and the larger the wave vector is, the weaker the signal is, and breaks through the resolution upper limit of the existing linear shift frequency super-resolution imaging technology under the premise of ensuring the imaging quality.

The application discloses a salt-containing chalcogenide crystal material, a preparation method thereof and application thereof as an infrared nonlinear optical material, and belongs to the technical field of crystal preparation. The salt-containing chalcogenide has a diamond-like structure; the chemical formula of the salt-containing chalcogenide is one of [A5X][M 14 Q 23 ], [A5BaX][M 18 Q 30 ], [A 13 BaX5][M 22 Q 38 ], [A 14 LiX5][M 22 Q 38 ]; wherein A is at least one selected from Na, K, Rb and Cs; X is at least one selected from Cl, Br and I; M is at least one selected from Ga and In; and Q is at least one selected from S, Se and Te. The NLO effect of the material is 0.3-10 times that of a commercial AgGaS2, the laser damage threshold is 1-50 times that of AgGaS2, and the comprehensive performance is greatly improved, so that the material is a potential infrared NLO material.

This invention provides a porphyrin polymer near-infrared organic nonlinear optical material, its preparation method, and its applications. The electron donor-acceptor type organic three-component conjugated polymer of this invention possesses near-infrared organic nonlinear optical properties and can be used as a laser limiting material in the field of laser protection.