Abstract: Computing device, computer instructions and method for estimating a broadband wavelet associated with a given seismic data set. The method includes receiving broadband seismic data; constructing and populating a misfit function; calculating the broadband wavelet based on the misfit function and the broadband seismic data; and estimating physical reservoir properties of a surveyed subsurface based on the broadband wavelet. The broadband wavelet is constrained, through the misfit function, by (1) an amplitude only long wavelet, and (2) an amplitude and phase short wavelet. The amplitude and phase short wavelet is shorter in time than the amplitude only long wavelet.

Abstract: Predicting elastic parameters of a subsurface includes modelling changes in the shear modulus and changes in the bulk modulus of the subsurface as a combination of a host medium shear modulus and host medium bulk modulus and a plurality of inclusion shear moduli and inclusion bulk moduli. Each inclusion shear modulus and inclusion bulk modulus associated with a unique inclusion geometry. An inclusion-based rock physical model is used to solve the models for changes in shear modulus and changes in bulk modulus to predict an effective shear modulus of the subsurface and an effective bulk modulus of the subsurface.

Abstract: A method for generating seismic attribute gathers, the method including: computing, with a computer, seismic images with a field dataset; generating, with a computer, synthetic data corresponding to the seismic images; computing, with a computer, an attribute volume by applying an expectation method to the synthetic data; mapping, with a computer, the attribute volume to the seismic images; and generating, with a computer, seismic attribute gathers by stacking the seismic images mapped to the attribute volume.

Abstract: A seismic survey method comprising a vessel, a seismic acquisition system for collecting geophysical seismic data, a marine navigation system for generating positioning data from the location of the vessel and the location of the seismic acquisition system, a seismic data storage engaged with the seismic acquisition system for collecting and storing the seismic data and a seismic data processor engaged with said seismic data storage for seismic processing of the seismic data. The seismic data is acquired along a non-linear acquisition path or sail line. The data consists of CMP lines that follow the non-linear acquisition path. A binning grid covering the CMP lines of the acquired data such that the in-lines follow parallel to the acquisition path and the cross-lines are perpendicular to the in-lines is created. The binning grid comprises a straight portion and a curved portion. Bins for each portion of the binning grid is calculated.

Abstract: A data visualization method for visualizing data acquired along a non-linear acquisition path or sail line. The data consists of CMP lines that follow the non-linear acquisition path. The data is arranged such that the in-lines in the binning grid follow the acquisition path and the cross-lines are perpendicular, or near perpendicular, to the in-lines, the method comprising the steps of: creating a binning grid covering the CMP lines of the acquired data, the binning grid comprising a straight portion and a curved portion; calculating bins for each portion; loading the seismic data into the a visualization software; and creating a set of linked windows, wherein a field of view of the different set of linked windows is synchronized, and wherein a marker is provided to visualize the field of view of data in at least two of the linked windows.

Abstract: Computing device, computer instructions and method for correcting an image, of a surveyed surface, due to a free-surface reflection. The method includes calculating a free surface reflection operator for a seismic source displaced in water based on a position of the source, and an air-water interface datum; receiving recorded seismic data d recorded with seismic sensors (r), wherein the recorded seismic data is associated with a pressure and/or a particle motion produced by a seismic wave in earth; correcting the recorded seismic data d based on the free surface reflection operator to obtain transformed seismic data; and generating an image of the surveyed subsurface, based on the transformed seismic data, wherein the image is indicative of various layers of the earth. The free surface reflection operator varies while a source signal is being emitted by the source.

Abstract: The present disclosure describes computer-implemented methods, computer-program products, and computer systems, for providing parameters for successful automated fault patch extraction. Attributes are selected for annotating images generated from, and for interpretation of, seismic amplitude volume. Images are generated from layers of a seismic cube, each generated using a different attribute of the plural attributes. The plural images are blended using customized palettes and initial parameters to create a blended image illuminating discontinuities in the layers. Optimal parameters are iteratively determined for automatic derivation of fault discontinuities on an interpreter-selected edge-enhanced sub-volume. The iterations are controlled and terminated based on interpreter inputs. The optimal extraction parameters are applied to an entire edge-enhanced volume. Important extracted fault discontinuities are isolated using commercial filtering tools.

Abstract: The invention is a method for processing seismic data to eliminate the coherent noise arising from multiple seismic reflections. A decomposition procedure is applied to decompose along N directions of decomposition seismic data into a set of N components. At least one model of multiple reflections is decomposed according to the same decomposition procedure and along the same N directions. For each direction of decomposition, a relative concentration between the component of the model of multiples and the component of the data in the direction concerned is calculated. Next a procedure of adaptive filtering of the multiple reflections is applied to each of the seismic components. The filtered seismic components are recombined with the recombination being weighted by a weighting dependent on the relative concentrations calculated for each direction of decomposition.

Abstract: Disclosed is a method for generating an estimation of earth's gravity. The method includes: obtaining one or more acceleration data values and one or more orientation data values over a period of time; generating magnitude of orientation change from the orientation data values; determining a stability value based on the acceleration data values and the magnitude of orientation change; comparing the determined stability value to a threshold value; and generating an estimation of earth's gravity over the period of time on the basis of the acceleration data values if the comparison indicates that the determined stability value is below the threshold value. Also disclosed is an apparatus implementing the method.

Abstract: A downhole sensing method includes modulating light to form a soliton that propagates through an optical fiber acting as a sensing element that measures a downhole parameter. The method further includes obtaining scattered light created as the soliton propagates through the optic-fiber. The method further includes determining a value for a downhole parameter based on the scattered light, and displaying a representation of the value.

Abstract: A downhole fluid properties optical analysis probe (1) to analyze at least one property of a multiphase flow mixture (100) flowing in a hydrocarbon well (51) has an elongated cylindrical body shape. It comprises an optical tip (5) at one end of the elongated cylindrical body arranged to be in contact with the multiphase flow mixture (100). It further comprises an optical link (6) adapted for a connection with an electronics module (11) at another end of the elongated cylindrical body arranged to be separated from the multiphase flow mixture (100). The optical tip (5) is coupled to the optical link (6) through a removable and watertight coupling (7).

Abstract: A method for quantitatively evaluating the anisotropy of joint roughness coefficient of rock joints is provided, comprising the following steps: selecting a joint sample of an engineering rock mass to be analyzed; uniformly arranging rock joint measurement segments in different orientations; recording each joint profile by a profilograph; measuring joint roughness coefficient of each measurement segment; calculating a statistical mean value of the joint roughness coefficients in each orientation under same dimensional conditions, and obtaining a roughness coefficient class ratio in each orientation; transforming each item in the roughness coefficient class ratio by R1(i)=r0(i)1/m; fitting the processed roughness coefficient of the rock joints by anisotropic ellipse function; determining a major axis a and a minor axis b of the anisotropic ellipse, ? representing a direction of rotation, where a ratio of the major axis to the minor axis indicates a difference between the maximum roughness coefficient and the m

Abstract: A multifunctional dielectric gradient metasurface optical device has a layer of nanoscale dielectric gradient metasurface optical antenna elements deposited on a substrate layer, arranged with spatially varying orientations, shapes, or sizes in the plane of the device such that the optical device has a spatially varying optical phase response capable of optical wavefront shaping. The spatially varying optical phase response is a spatial interleaving of multiple distinct phase profiles corresponding to multiple optical sub-elements, thereby providing multifunctional wavefront shaping in the single optical element.

Abstract: An optical member includes a base material and a film on the base material, the film includes hollow particles that have prickle-like protrusions on their surface, the heights of the protrusions are 3 nm or more and 20 nm or less, the proportion of the prickle-like protrusions is 3% or more and 30% or less of the particle surface, and the film includes 50 percent by volume or more and 68 percent by volume or less of hollow particles. Consequently, an antireflection film having a low refractive index and a low level of scattering in combination is provided.

Abstract: The present disclosure provides an article having a substrate having opposing first and second surfaces. A conductor micropattern is disposed on the first surface of the substrate. The conductor micropattern has a plurality of traces defining a plurality of cells. The conductor micropattern may have an open area fraction greater than 80% and a uniform distribution of trace orientation. Each of the traces has a trace width from 0.5 to 10 micrometer. The conductor micropattern is a tri-layer material comprising in sequence a semi-reflective metal, a transparent layer, and a reflective layer disposed on the transparent layer. The articles are useful in devices such as displays, in particular, touch screen displays useful for mobile hand held devices, tablets and computers. They also find use in antennas and for EMI shields.

Abstract: A curved lens protector can include a transparent body having a self-supporting x-y axis curve with a concave inner surface and a convex outer surface opposite the inner surface. The transparent body can have an outer boundary of a predetermined shape to substantially match and fit with respect to an inner boundary of a lens holder portion of a predetermined lens frame. The transparent body can be configured for attachment to a predetermined curved lens without the use of an adhesive.

Abstract: Methods and systems for optical assemblies are disclosed. Optical assemblies can comprise optical elements that may not require active alignment and allow for reduced performance variations. To allow for passive assembly with a machine like a bonder tool, assembly components can have bonding pads and/or fiducial markers that are fabricated using laser micromachining techniques.

Abstract: An element substrate is formed as a lens array substrate on which a plurality of lenses are formed. In a method of manufacturing the lens array substrate, first recess sections are formed on one surface of the substrate, and then a plurality of lens surfaces, which include concave surfaces, are formed at the bottoms of the first recess sections 195. Subsequently, after a light-transmitting lens layer is formed to fill the inside of the first recess sections, flattening is performed while the lens layer is removed. Here, the surface of the lens layer on a side opposite to the substrate is a planar surface which is contiguous to an outside area that is positioned on the outer side of the first recess sections on the one surface of the substrate.

Abstract: A photographing lens module includes a plurality of lens elements, wherein one of the lens elements is a plastic lens element, and at least one surface of an object-side surface and an image-side surface of the plastic lens element includes an effective optical portion and a peripheral portion. The effective optical portion is aspheric. The peripheral portion surrounds the effective optical portion, and includes a plurality of strip rib structures and a plurality of light absorbing coatings. Each of the strip rib structures has a strip shape along a radial direction of an optical axis of the plastic lens element, and the strip rib structures are arranged around the effective optical portion. The light absorbing coatings are coated on the strip rib structures respectively.

Abstract: The present invention relates to an electromagnetic wave absorbing/radiating material which includes: a conductor; and a plurality of conductor discs disposed in an array above the surface of the conductor or a perforated conductor layer with a plurality of holes defined in an array above the surface of the conductor.

Abstract: A method of manufacturing a pattern structure is provided. The method includes forming a fine pattern on a wafer, cutting the wafer by irradiating the wafer with a laser while changing a focal depth of the laser, thereby forming a unit pattern structure having a fine pattern, and bonding cutting surfaces of at least two unit pattern structures. The cutting of the wafer comprises moving a focal position of the laser in a horizontal direction and changing the focal depth of the laser, such that the unit pattern structure has a cutting surface profile in which a first surface of the unit pattern structure on which the fine pattern is formed protrudes, in a direction substantially parallel to the first surface, from a second surface of the unit pattern structure that is opposite to the first surface.

Abstract: Embodiments of the present disclosure disclose a fabrication method of a color filter substrate, a color filter substrate and a display device. The fabrication method includes forming an interlayer insulating layer and a first color filter group above the conductive pattern, wherein, the first color filter group includes color filter(s) of at least one color, the interlayer insulating layer and the first color filter group are formed by a same material; the interlayer insulating layer is configured to electrically insulate the conductive connecting portion from the conductive bridging portion.

Abstract: An optical arrangement for a camera module with an image sensor is provided. The optical arrangement includes optical components having a transparent cover element; an infrared absorbing cut-off filter; and an optical lens. The optical components are arranged, along an incident optical beam path going through the optical components onto the image sensor, in a sequence through the transparent cover element, then the infrared absorbing cut-off filter, and then the optical lens.

Abstract: Infrared reflecting film includes, on a transparent film substrate, a metal oxide layer, an infrared reflecting layer mainly made of silver, and a light absorptive metal layer, in this order. No metal layer is disposed between the transparent film substrate and the infrared reflecting layer. The metal oxide layer is preferably formed of a composite metal oxide including zinc oxide and tin oxide. The light absorptive metal layer has a thickness of 2 nm to 10 nm and includes at least one selected from the group consisting of nickel, chromium, niobium, tantalum, and titanium.

Abstract: A polarizing film includes a hydrophobic polymer and a dichroic dye, wherein the hydrophobic polymer includes a polypropylene polymer including about 0.5 mol % or less of an ethylene content (mol %), and has a distribution of a molecular weight of about 1 to about 5.

Abstract: An optical element includes a transparent substrate having a planar front surface, and a multilayer structure, which is formed on the front surface of the substrate and includes multiple thin film layers, including an outer layer that is exposed to ambient air. The multilayer structure defines, at a target wavelength, a series of resonant cavities that create, for a beam of light at the target wavelength that is incident on the optical element at a target angle, a passband for an s-polarization component of the beam and a stopband for a p-polarization component of the beam.

Abstract: A device for producing polarized light includes a plurality of photonic crystal grid structures on a substrate. The plurality of photonic crystal grid structures includes one or more structured regions for the transmission of polarized blue light, polarized green light, and polarized red light. A green quantum dot layer is substantially positioned on the one or more structured regions for the transmission of polarized green light and a red quantum dot layer is substantially positioned on the one or more structured regions for the transmission of polarized red light. A blue light emitting diode array is disposed on the polarized light device such that the emission from the blue light emitting diode array facilitates the emission of red and green light from the red and green quantum dot layers.

Abstract: A wire-grid polarizing element comprising a base substrate, and a carbon nanotube wire-grid and a metal wire-grid which are disposed on the base substrate, wherein the metal wire-grid and the carbon nanotube wire-grid are laminated in a direction perpendicular to the base substrate, and the carbon nanotube wire-grid comprises a plurality of carbon nanotubes having the same axial direction.

Abstract: Provided is a polarization state converting element including a plurality of waveplates, and a rotation mechanism that rotates the respective waveplates independently of one another around an optical axis. The waveplates are each configured by a substrate made of a material having no optical rotatory property but having birefringence, or are each made of a material having neither optical rotatory property nor birefringence, but having transparency, a function of phase delay depending on polarization being applied on a surface of each waveplate.

Abstract: A polarization unit includes a plurality of retardation layers that each have a different retardation value, a polarization layer positioned above the plurality of retardation layers, a first compensation layer positioned between the polarization layer and the plurality of retardation layers, and a second compensation layer positioned below the plurality of retardation layers.

Abstract: A light guide apparatus that can redirect light impinging on the apparatus over a wide range of incident angles and can concentrate light without using a tracking system and methods for fabrication.

Abstract: According to a display apparatus according to an embodiment of the present invention, it is possible to prevent a quantum dot unit provided in a backlight assembly from being damaged by heat generated from a light source. The display apparatus according to an embodiment of the present invention includes a display panel that displays an image, a light source that provides light from a rear side of the display panel, a light guide plate that is positioned on the rear side of the display panel and guides light emitted from the light source, and a quantum dot unit that is provided to be spaced apart from the light source and converts a wavelength of the light emitted from the light source.

Abstract: The present invention provides a backlight unit capable of realizing a wide color gamut of a display device by reduction of the spectral half-width of light. The backlight unit provided by the present invention comprises: a light source which is formed so as to provide primary light; a quantum dot phosphor which is excited by the primary light provided from the light source and emits secondary light having a wavelength different from the wavelength of the primary light, the quantum dot phosphor being arranged so as to be spaced apart from the light source; and a light cutting agent which absorbs light of a specific wavelength from the primary light or the secondary light.

Abstract: The invention relates to a light comprising: a primary lightpipe (2); and, a light source (1). The primary lightpipe may have: a lightpipe inlet side (3) constructed and arranged to receive light from the light source and to allow it to enter the primary lightpipe; a back side (6b) being provided with a serrated structure (5) comprising a reflecting surface (10) to reflect light from the light source; and, a front side (6a) constructed and arranged to internally reflect the light received from the light source to the back side of the primary lightpipe and to transmit light received from the reflecting surface.

Abstract: To easily increase display quality of light even in a case of a long light guide body. Depth h1 of a first dot (106) is larger than depth h2 of a second dot (108) in the vicinity of a light source, and, as a location comes closer to an end on an opposite side to the light source, depth h1 of the first dot (106) is reduced, and depth h2 of the second dot (108) is increased. Therefore, it is possible to easily increase display quality of light even in a case of a long light guide body.

Abstract: A waveguide body comprises a body of optically transmissive material further comprising an input surface for light to enter the body of optically transmissive material along a light path. The body of optically transmissive material is curved and has an inflection region that extends transverse to the light path.

Abstract: An optelectonic arrangement and a lighting device are disclosed. In an embodiment the arrangement includes a semiconductor chip for generating radiation and a radiation conversion element located downstream of the semiconductor chip with respect to a radiation direction, wherein the radiation conversion element includes a plurality of conversion bodies each with a longitudinal extension axis, and wherein a spatial orientation of the longitudinal extension axes has a preferred direction.

Abstract: A side-edge backlight module having non-uniformly sized backlight sections includes backlight sections that have relative sizes satisfying the condition that the backlight sections have higher ranks are of greater sizes. Ranking the backlight sections is made by conducting an simulation operation for a process of sectionalized lighting of backlight to display liquid crystal panel signals on the basis of uniformly sized backlight sections and conducting analysis of the number of zones where an interference signal appears and distance of the interference signal when each of backlight sections is lit in the simulation operation on the basis of uniformly sized backlight sections and ranking the backlight sections according to strength of cross-talking caused by the interference signal so that a backlight section having less strong cross-talking is set with a higher rank.

Abstract: The present invention provides a backlight module, comprising an optical film assembly, a light guide plate, a reflective sheet, and the optical film assembly comprises a first prismatic glass, and the first prismatic glass comprises a display region, two side walls, a junction region, and the display region and the reflective sheet are oppositely located, and the side wall is formed by the display region extending downward, and the side wall is connected between the display region and the junction region to form an accommodation space, and the light guide plate and the reflective sheet stack up together inside the accommodation space, and the light guide plate is located between the reflective sheet and the optical film assembly, and the reflective sheet is located between the light guide plate and the junction region.

Abstract: A backlight module includes a mold frame, a light guide board, an optic film, a light source, and a heat dissipative sheet. The light guide board has a light incident surface and a light exit surface that is arranged adjacent to the light incident surface. The light source is arranged opposite to the light incident surface of the light guide board. The optic film is attached to the light exit surface. The light source and the light guide board are mounted inside the mold frame. The light source is fixed by a double-sized adhesive tape to the mold frame. The heat dissipative sheet is attached to a surface of the double-sized adhesive tape that is opposite to the mold frame and a projection of the light source is cast to the heat dissipative sheet. A liquid crystal panel and a display screen are also provided.

Abstract: A display apparatus according to an embodiment of the present invention includes: a display panel to display an image on a front surface thereof; a light guide plate being configured such that an upper surface thereof faces a rear surface of the display panel; an optical sheet being located between the display panel and the light guide plate, and having first and second sides parallel to each other and third and fourth sides perpendicular to the first and second sides; a panel support portion including a frame that has a first surface being in contact with the upper surface of the light guide plate and a second surface supporting a peripheral edge of the rear surface of the display panel; and a sheet support portion protruding from the frame of the panel support portion into a gap between the light guide plate and the optical sheet, wherein the sheet support portion has a protruding portion that holds at least one portion of the first side of the optical sheet between the protruding portion itself and the dis

Abstract: A multicore polarization-maintaining fiber 10 includes a plurality of cores 11, a cladding 12 surrounding the plurality of cores 11, and a plurality of stress applying parts 15 provided sandwiching the plurality of cores 11 in a region surrounded by the outer circumferential surface of the cladding 12. The cross sectional area of the stress applying part 15 is greater than the cross sectional area of the core 11. Stress applying parts 15 of the plurality of stress applying parts 15 are disposed in a first direction, and stress applying parts 15 of the plurality of stress applying parts 15 are disposed in a second direction different from the first direction.

Abstract: A fiber span comprising: a first optical fiber and a second optical fiber coupled to the first optical fiber, both fibers comprising the an inner core region with maximum refractive index delta, ?0?0.1% and an outer radius R1>4.5 ?m, an outer core region with an outer radius R2 and a minimum refractive index delta ?1 and alpha value ??5, wherein ?1<?0, 5.

Abstract: A single mode optical fiber having a core made from silica and less than or equal to about 6.5 weight % germania and having a maximum relative refractive index ?1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index ?2MIN. A difference between a softening point of the core and a softening point of the inner cladding is less than or equal to about 20° C., and ?1MAX>?2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The outer cladding has a maximum relative refractive index ?3MAX, and ?3MAX>?2MIN. A method for manufacturing an optical fiber includes providing a preform to a first furnace, the preform, drawing the optical fiber from the preform, and cooling the drawn optical fiber in a second furnace.

Abstract: A sequence of processing steps presented herein is used to embed an optical signal path within an array of nanowires, using only one lithography step. Using the techniques disclosed, it is not necessary to mask electrical features while forming optical features, and vice versa. Instead, optical and electrical signal paths can be created substantially simultaneously in the same masking cycle. This is made possible by a disparity in the widths of the respective features, the optical signal paths being significantly wider than the electrical ones. Using a damascene process, the structures of disparate widths are plated with metal that over-fills narrow trenches and under-fills a wide trench. An optical cladding material can then be deposited into the trench so as to surround an optical core for light transmission.

Abstract: A method of fabricating an optical coupling device, comprising forming a waveguide mask layer on a substrate platform, wherein the waveguide mask layer comprises an array of openings comprising a first end and a second end opposite to the first end, immersing the substrate platform into a salt melt comprising ions to form an array of waveguides in the substrate platform through an ion diffusion process, and controlling a rate of immersion such that a diffusion depth of the ions varies as a function of a distance in a direction from the first end to the second end, wherein the array of waveguides extends in the direction from the first end to the second end.

Abstract: Embodiments of present invention provide a digital dispersion compensation module. The digital dispersion compensation module includes a multi-port optical circulator; and a plurality of dispersion compensation units connected to the multi-port optical circulator, wherein at least one of the plurality of dispersion compensation units includes a fiber-bragg grating (FBG) having a first port and a second port; and an optical switch being capable of selectively connecting to one of the first port and the second port of the FBG, wherein the at least one of the plurality of dispersion compensation units is adapted to provide a positive dispersion to an optical signal, from the multi-port optical circulator, when the optical switch connects to the first port of the FBG and is adapted to provide a negative dispersion to the optical signal when the optical switch connects to the second port of the FBG.

Abstract: Advantageously, at least one embodiment of the present disclosure comprises a polarization maintaining PROFA (“PM-PROFA”) coupler in which the polarization axes of the individual vanishing core waveguides thereof are oriented or aligned without the need to adjust the orientation of each individual VC waveguide.

Abstract: Embodiments of the present disclosure provide a multiplexer, and relate to the field of fiber communications technologies. The multiplexer according to the embodiments of the present disclosure includes a first light beam adjusting element, a second light beam adjusting element, a first light filtering and combining element or splitting element, a second light filtering and combining element or splitting element, a polarization changing element, and a light polarizing and combining element. The optical multiplexer according to the embodiments of the present disclosure may not only implement combining at least four light beams into one light beam but also reduce the number of reflection times of light during a light combination process.

Abstract: A photodetector includes a germanium layer evanescently coupled to a ring resonator. The ring resonator increases the interaction length between light guided by the ring resonator and the germanium layer without increasing the size of the photodetector, thereby keeping the photodetector's dark current at a low level. The germanium layer absorbs the guided light and converts the absorbed light into electrical signals for detection. The increased interaction length in the resonator allows efficient transfer of light from the resonator to the germanium layer via evanescently coupling. In addition, the internal and external quality factors (Q) of the ring resonator can be matched to achieve (nearly) full absorption of light in the germanium with high quantum efficiency.