Abstract: A waveguide mounting portion (102) is formed at one portion of an optical fiber (100). The waveguide mounting portion (102) is formed by cutting away one portion of the optical fiber (100) in the direction of extension of the optical fiber (100) at a cross-section passing through a core (120) of the optical fiber (100). A first concave portion (122) is formed in the waveguide mounting portion (102). The first concave portion (122) is formed by removing the core (120) of the optical fiber (100). A ridge type waveguide (220) is inserted into the first concave portion (122).

Abstract: A scintillation crystal capable of emitting scintillation light can have a main body and a feature extending from the main body along a side of the scintillation crystal. The feature can have a dimension that is no greater than 2.5 times a wavelength of the scintillating light. In an embodiment, the feature and the main body can have substantially the same composition, and in a further embodiment the scintillation crystal can be interface free between the feature and the main body. The feature can be formed along the side of the scintillation crystal by removing portions of the scintillation crystal. In particular, the feature can be formed by abrading a surface of the scintillation crystal with an abrasive material.

Abstract: The present disclosure provides a mobile terminal including a terminal body, and an image module mounted onto the terminal body to provide an externally exposed stereoscopic image, wherein the image module includes an optically transmissive layer made of an optically transmissive material, a pattern layer made of an optically transmissive material and protruding from a rear surface of the optically transmissive layer in a shape corresponding to the image, and a reflection layer disposed to cover the pattern layer to reflect at least part of light incident onto the pattern layer toward a front surface of the optically transmissive layer, and a fabricating method for the image module.

Abstract: A method for fabricating a grating coupler having a bottom mirror in a semiconductor wafer including etching a trench from a top surface of a wafer and around a grating coupler formed in the wafer; etching a void underneath the grating coupler; etching a via into the void from the backside of the wafer; and depositing a mirror on the bottom of the grating coupler. Alternatively, additional oxide may be deposited on the bottom of the grating coupler prior to the deposition of the mirror such that a desirable oxide thickness on the bottom is achieved.

Abstract: A method for manufacturing an optical waveguide which includes a core configured to transmit an optical signal, and a mirror portion configured to reflect the optical signal, the method includes: forming a mask layer patterned in a predetermined shape, on a first crystal plane of a substrate made of a crystalline material; etching the first crystal plane by a wet-etching using the mask layer to form a groove having a plurality of crystal planes; providing a metallic reflection film on at least one of the plurality of crystal planes to form the mirror portion; and providing the groove with a core material to form the core.

Abstract: An optical device includes: a first cladding layer; a core layer disposed on the first cladding layer and, with increase in its sectional area, extending from a first end which receives/outputs light along a direction from the first end toward a second end; a slab layer disposed on the first cladding layer and extending to the second end along the direction from the first end toward the second end; a rib layer disposed on the slab layer and, with decrease in its sectional area, extending to the second end along the direction from the first end toward the second end; and a second cladding layer disposed on the core layer and the rib layer. The core layer and both of the slab and rib layers are optically coupled in a part in which the sectional are of the core and rib layers is the maximum.

Abstract: According to one aspect, the invention relates a spectral band-pass filter, which is optimized for the transmission of an incident wave at at least a first given central wavelength ?0, and which includes: a metal grating having a thickness (t) greater than approximately ?0/50 and including at least a first set of substantially identical, parallel slots having a width (W) less than around ?0/10, and being spaced apart periodically or quasi-periodically according to a first period that is less than said first central el wavelength, a layer of dielectric material having a thickness (h) and a given refractive index (ng), which is coupled to the metal grating to form a waveguide for the waves diffracted by the grating, said first period of the grating being designed such that only orders 0 and ±1 of a wave having normal incidence and a wavelength ?0 are diffracted in the layer of dielectric material, the assembly of the dielectric layer and grating being suspended, during use, in a fluid having a refractive index

Abstract: An optical combiner includes a two-dimensional (“2D”) array of three-dimensional (“3D”) diffraction element shapes disposed in a first side of a base sandwich layer. Partially reflective elements coat each of the 3D diffraction element shapes. The partially reflective elements collectively form a reflective diffraction grating having magnifying optical power for image light incident on the reflective diffraction grating through an eye-ward side of the optical combiner. A planarization sandwich layer is disposed over the partially reflective elements and has an index of refraction substantially equal to that of the base sandwich layer such that external scene light incident through the external scene side passes through the optical combiner substantially without diffraction while the image light incident through the eye-ward side is reflected and magnified via the reflective diffraction grating.

Abstract: A method for producing a polarizing element includes: forming particulate materials of a metal halide on a glass substrate; forming a protective film that covers the particulate materials in a non-plasma environment; stretching the particulate materials by heating and stretching the glass substrate; and forming acicular metal particles by reducing the metal halide constituting the stretched particulate materials.

Abstract: Method for manufacturing a multilayer structure with a lateral pattern, in particular of an optical grating for application in an optical device for electromagnetic radiation with a wavelength in the wavelength range between 0.1 nm and 100 nm, comprising the steps of (i) providing a multilayer structure, and (ii) arranging a lateral three-dimensional pattern in the multilayer structure, wherein step (ii) of arranging the lateral pattern is performed by means of a method for nano-imprint lithography (NIL), and BF and LMAG structures manufactured according to this method.

Abstract: A substrate section for a flexible display device is disclosed. The substrate section includes: a first substrate, a second substrate disposed above a center region of the first substrate, a reinforcing layer disposed between the first and second substrates, configured to reinforce adhesion between the first and second substrates, and a barrier layer disposed above the second substrate and surrounding side surfaces of the second substrate and of the reinforcing layer.

Abstract: A method for providing a capping layer configured for an energy assisted magnetic recording (EAMR) head including at least one slider. The method comprises etching a substrate having a top surface using an etch to form a trench in the substrate, the trench having a first surface at a first angle from the top surface and a second surface having a second angle from the top surface. The method further comprises providing a protective coating exposing the second surface and covering the first surface, removing a portion of the substrate including the second surface to form a laser cavity within the substrate configured to fit a laser therein, and providing a reflective layer on the first surface to form a mirror, the cavity and mirror being configured for alignment of the laser to the laser cavity and to the mirror and for bonding the laser to the laser cavity.

Abstract: Provided is a polarizing element in which a desired polarization characteristics are achieved and the transmissivity is also good. The polarizing element comprises: a substrate transparent to light having a bandwidth to be used; and a grid pattern made of a translucent material and configured such that a plurality of projection portions continuous in one in-plane direction of said substrate are formed on a surface of the substrate at a pitch smaller than a wavelength of light having a bandwidth to be used, wherein each of the projection portions includes a base portion with a rectangular cross-section and a tapered surface portion formed at a top of the base portion, a fine particle layer made of an inorganic material is laminated on at least one surface of said tapered surface portion, and the fine particle layer does not protrude over a side face of the base portion.

Abstract: A method of fabricating a waveguide device is disclosed. The method includes providing a substrate having an elector-interconnection region and a waveguide region and forming a patterned dielectric layer and a patterned redistribution layer (RDL) over the substrate in the electro-interconnection region. The method also includes bonding the patterned RDL to a vertical-cavity surface-emitting laser (VCSEL) through a bonding stack. A reflecting-mirror trench is formed in the substrate in the waveguide region, and a reflecting layer is formed over a reflecting-mirror region inside the waveguide region. The method further includes forming and patterning a bottom cladding layer in a wave-tunnel region inside the waveguide region and forming and patterning a core layer and a top cladding layer in the waveguide region.

Abstract: A method of forming a lighting system comprises providing a cavity having at least a first array of first optical elements and a second array of second optical elements that have a different shape than the first array, filling the cavity with a curable resin, applying a secondary optical element to the curable resin in alignment with the first optical array, curing the resin to form a cured assembly, and removing the cured assembly from the cavity.

Abstract: A method of forming of biological sensing structures including a portion of a substrate is recessed to form a plurality of mesas in the substrate. Each of the plurality of mesas has a top surface and a sidewall surface. A first light reflecting layer is deposited over the top surface and the sidewall surface of each mesa. A filling material is formed over a first portion of the first light reflecting layer. A stop layer is deposited over the filling material and a second portion of the first light reflecting layer. A sacrificial layer is formed over the stop layer and is planarized exposing the stop layer. A first opening is formed in the stop layer and the first light reflecting layer. A second light reflecting layer is deposited over the first opening. A second opening is formed in the second light reflecting layer.

Abstract: Device for generating a plasma discharge near a substrate for patterning the surface of the substrate, comprising a first electrode having a first discharge portion and a second electrode having a second discharge portion, a high voltage source for generating a high voltage difference between the first and the second electrode, and positioning means for positioning the first electrode with respect to the substrate. The device is further provided with an intermediate structure that is, in use, arranged in between the first electrode and the substrate while allowing for positioning the first electrode with respect to the substrate.

Abstract: An optical element having an anti-reflection function includes a base having a first main surface and a second main surface; a plurality of structures composed of projections or recesses and arranged on the first main surface at a fine pitch equal to or less than the wavelength of visible light for which the amount of reflection is to be reduced; and a light-absorbing layer that absorbs the light and that is disposed on the second main surface, wherein the structures are arranged so as to form a plurality of rows of tracks on the first main surface and form a hexagonal lattice pattern, a quasi-hexagonal lattice pattern, a tetragonal lattice pattern, or a quasi-tetragonal lattice pattern, and the structures each have an elliptical cone shape or a truncated elliptical cone shape, the major axis direction of which is a direction in which the tracks extend.

Abstract: Methods for forming a metal grating include providing a first grating including a plurality of grating lines formed from a dielectric material, each grating having a pair of sidewalls, facing sidewalls of adjacent grating lines being separated by corresponding trenches, the grating lines and trenches forming a grating surface; forming a layer of a metal on the grating surface, where the metal layer has a constant thickness and conforms to the grating surface; and removing portions of the metal layer between sidewalls of adjacent grating lines of the first grating to form a metal grating having grating lines formed from the metal, the grating lines of the metal grating corresponding to the portions of the metal layer adjacent the sidewalls of the grating lines of the first grating. The metal grating has a pitch of 200 nm or less, a depth of 50 nm or more, and the grating lines of the metal grating have an aspect ratio of 10-to-1 or more.

Abstract: A semiconductor hollow-core waveguide using high-contrast gratings or photonic crystal claddings and a method of manufacturing the same includes providing a layered semiconductor structure; creating an etching mask pattern over the layered semiconductor structure; performing a combined cycled directional etching process on the layered semiconductor structure in one sequence and in one lithography level to create a 3-dimensional waveguide structure; and creating a hollow air core in the layered semiconductor structure by removing to define a shape of the waveguide. The etching process comprises vertically etching a series of deep trenches on the layered semiconductor structure with precise control and varying the width of the trench. Furthermore, the hollow air core is created by removing a portion of the sacrificial material located in the center of the waveguide and under the waveguide.

Abstract: A scintillator pixel array can include a plurality of scintillator pixels and a plurality of voids arranged in a checkerboard pattern. Each void can be defined by at least two surfaces having an adhesive disposed thereon. The scintillator pixel array can be made by fabricating an array of scintillator members and dissolvable members and dissolving the dissolvable members in a solvent.

Abstract: An aqueous polishing composition having a pH of 3 to 11 and comprising (A) abrasive particles which are positively charged when dispersed in an aqueous medium free from component (B) and of a pH of 3 to 9 as evidenced by the electrophoretic mobility; (B) anionic phosphate dispersing agents; and (C) a polyhydric alcohol component selected from the group consisting of (c1) water-soluble and water-dispersible, aliphatic and cycloaliphatic, monomeric, dimeric and oligomeric polyols having at least 4 hydroxy groups; (c2) a mixture consisting of (c21) water-soluble and water-dispersible, aliphatic and cycloaliphatic polyols having at least 2 hydroxy groups; and (c22) water-soluble or water-dispersible polymers selected from linear and branched alkylene oxide homopolymers and copolymers (c221); and linear and branched, aliphatic and cycloaliphatic poly(N-vinylamide) homopolymers and copolymers (c222); and (c3) mixtures of (c1) and (c2); and a process for polishing substrates for electrical, mechanical and optical de

Abstract: An aqueous polishing composition comprising (A) at least one water-soluble or water-dispersible compound selected from the group consisting of N-substituted diazenium dioxides and N?-hydroxy-diazenium oxide salts; and (B) at least one type of abrasive particles; the use of the compounds (A) for manufacturing electrical, mechanical and optical devices and a process for polishing substrate materials for electrical, mechanical and optical devices making use of the aqueous polishing composition.

Abstract: An apparatus for use with a digital micromirror device includes a hinge layer that is disposed outwardly from a substrate. The hinge layer including a hinge that is capable of at least partially supporting a micromirror that is disposed outwardly from the hinge. In one particular embodiment, the hinge and the substrate are separated by a first air gap. The device also including a first hinge support that is disposed outwardly from the substrate and inwardly from at least a portion of the hinge layer. The first hinge support being capable of transmitting a voltage to the hinge. At least a portion of the hinge support coupled to at least the portion of the hinge layer. In one particular embodiment, the first hinge support is formed in a process step that is different than a process step that forms the hinge layer.

Abstract: Apparatus and method for in-line cladding-light dissipation including forming a light-scattering surface on the optical fiber such that the light-scattering surface scatters cladding light away from the optical fiber. In some embodiments, the apparatus includes an optical fiber having a core and a first cladding layer that surrounds the core, wherein a first portion of the optical fiber has a light-scattering exterior surface. Some embodiments further include a transparent enclosure, wherein the transparent enclosure includes an opening that extends from a first end of the transparent enclosure to a second end of the transparent enclosure, and wherein at least the first portion of the optical fiber is located within the opening of the transparent enclosure. Some embodiments include a light-absorbing housing that surrounds the optical fiber and the transparent enclosure and is configured to absorb the light scattered away from the optical fiber by the light-scattering exterior surface.

Abstract: A diffraction-type 3D display element is arranged on an image output face of a 3D display device and comprises a first diffraction area and a second diffraction area. The first diffraction area has a plurality of first stepped gratings spaced apart from each other. The second diffraction area has a plurality of second stepped gratings spaced apart from each other. The second diffraction area is adjacent to the first diffraction area and is arranged symmetrically to the first diffraction area with a central line being the symmetric axis. The diffraction-type 3D display element of the invention diffracts the images output by the 3D display device and projects the diffracted images to two different viewing areas to provide 3D images for users.

Abstract: A method of taper-etching a layer to be etched that is made of a dielectric material and has a top surface. The method includes the steps of: forming an etching mask with an opening on the top surface of the layer to be etched; and taper-etching a portion of the layer to be etched, the portion being exposed from the opening, by reactive ion etching so that a groove having two wall faces intersecting at a predetermined angle is formed in the layer to be etched. The step of taper-etching employs an etching gas containing a first gas contributing to the etching of the layer to be etched and a second gas contributing to the deposition of a sidewall protective film, and changes, during the step, the ratio of the flow rate of the second gas to the flow rate of the first gas so that the ratio increases.

Abstract: According to a first aspect, the present invention relates to a spectral filter suitable for filtering an incident wave at at least a first given central wavelength ?0 comprising a substrate with a through orifice and a membrane of dielectric material. The membrane is suspended above the orifice and is structured to form a set of rods organized in the form of a two-dimensional pattern (33) repeated in two directions (D1, D2), the repetition of the pattern in at least one direction being periodic or quasi-periodic, with a first period (T1) less than the central wavelength ?0.

Abstract: A method is provided for manufacturing a high-precision mold whereby a feature matching a desired feature design is carved into a hard mold material (41) using, for example, a diamond grinding wheel and/or a diamond turning point. Inherent imprecision and errors (49) introduced by the use of the grinding wheel/turning point are measured to determine deviations from the desired feature design. An ultrafast shortpulse laser is then activated to desirably ablate the deviations, thereby correcting the errors and conforming the feature to the desired shape. Furthermore, a thin film (1602) may be formed over the feature either prior to or after the laser ablation process, where the error measurement and laser ablation processes detects and ablates errors on the surface of the thin film, respectively. Additionally, the laser ablation process may be applied directly to, for example, an optical lens (1400) formed from an imprecise mold to remove any errors and imperfections thereon.

Abstract: An electrochromic device includes a first electrochromic region interconnected with a second electrochromic region by a plurality of conductive links disposed between sides of a substrate on which the material layers of the electrochromic device are formed. The plurality of conductive links interconnects a first isolated conductive region of the first electrochromic region with a first isolated conductive region of the second electrochromic region. A sequence of a counter electrode layer, an ion conductor layer and an electrochromic layer is sandwiched between the first conductive regions of the first and second electrochromic regions and respective second isolated conductive regions of the first and second electrochromic regions. The second conductive regions of the first and second electrochromic regions are connected to respective first and second bus bars which are for connection to a low voltage electrical source.

Abstract: A dry etching method for texturing a surface of a substrate is disclosed. The method includes performing a first dry etching onto the surface of the substrate thereby forming a surface texture with spikes and valleys, the first dry etching comprising etching the surface of the substrate in a plasma comprising fluorine (F) radicals and oxygen (O) radicals, wherein the plasma comprises an excess of oxygen (O) radicals. The method may further include performing a second dry etching onto the surface texture thereby smoothening the surface texture, the second dry etching comprising chemical isotropic etching the surface texture, obtained after the first dry etching, in a plasma comprising fluorine (F) radicals, wherein the spikes are etched substantially faster than the valleys.

Abstract: A method of forming an energy assisted magnetic recording (EAMR) writer is disclosed. A structure comprising a bottom cladding layer and a near field transducer (NFT) is provided. A patterned sacrificial layer is formed over the structure. A top cladding layer is deposited over the patterned sacrificial layer and a remaining region of the structure not covered by the patterned sacrificial layer. A patterned resist is formed over the top cladding layer. A first etching operation is performed on the top cladding layer via the patterned resist, whereby a top cladding having a sloped region is formed. The patterned sacrificial layer provides an etch stop for the first etching operation.

Abstract: A system and method for identifying information related to an object. A radiation emitter is configured to direct radiation toward an object, the object including one or more diffraction gratings including encoded information related to the object. A detector is configured to receive modified radiation from the one or more diffraction gratings on the object and transfer the received modified radiation to a processing device operably connected to the detector. The processing device is configured to process the modified radiation and decode the information related to the object encoded in the one or more diffraction gratings.

Abstract: Provided are patterned nanoporous gold (“P-NPG”) films that may act as at least one of an effective and stable surface-enhanced Raman scattering (“SERS”) substrate. Methods of fabricating the P-NPG films using a low-cost stamping technique are also provided. The P-NPG films may provide uniform SERS signal intensity and SERS signal intensity enhancement by a factor of at least about 1×107 relative to the SERS signal intensity from a non-enhancing surface.

Abstract: A method for fabricating a color filter structure includes: providing a base layer; forming a first colored layer on the base layer; patterning the first colored layer to form a pair of first colored patterns, a first opening between the first colored patterns, and a second opening adjacent to the first colored patterns; forming a first dielectric layer on the first colored patterns and the base layer exposed by the first and second openings; forming a second colored layer on the first colored patterns and the first dielectric layer; patterning the second colored layer to form a second colored pattern in the first opening; forming a second dielectric layer on the first dielectric layer and the second colored pattern; forming a third colored layer on the second dielectric layer; and patterning the third colored layer to form a third colored pattern in the second opening.

Abstract: Surface texturing of the transparent conductive oxide (TCO) front contact of a thin film photovoltaic (TFPV) solar cell is needed to enhance the light-trapping capability of the TFPV solar cells and thus improving the solar cell efficiency. Embodiments of the current invention describe chemical formulations and methods for the wet etching of the TCO. The formulations and methods may be optimized to tune the surface texturing of the TCO as desired.

Abstract: An image module including a base member including a light transmissive material; a first layer having a first protruding pattern protruding from a first surface of the base member; a second layer including an opaque material and covering a second surface of the base member; and one or more image through-holes in the second layer and configured to pass light from a light source through the image through-holes and towards the protruding pattern to form one or more images.

Abstract: An optical interposer includes grooves (310) for optical fiber cables (104) coupled to a transducer (120). The grooves are formed by etching a cavity (410) in a substrate (130), filling the cavity with some layer (520), then etching the layer to form the grooves. The cavity has outwardly sloped sidewalls on which mirrors (144) are later formed. The groove etch is selective not to damage the sidewalls. The groove depth is uniform due to high etch selectivity of the layer, and also because of good control over the cavity etch due to the low aspect ratio of the cavity. Electrical circuitry for connection to the transducer is fabricated after the cavity filling but before the groove etch. The cavity filling leaves the wafer planar, facilitating fabrication of the electrical circuitry. Grooves can be provided on top and bottom of the interposer. Other features are also provided.

Abstract: A laser light source apparatus is provided that can prevent an output mirror from breaking and can simplify adjustment of the attachment position of the output mirror. The laser light source apparatus includes: a semiconductor laser that outputs an excitation laser beam; a solid-state laser element that is excited by the excitation laser beam, to output a fundamental laser beam; and an output mirror that forms a resonator together with the solid-state laser element. The output mirror includes: a base part formed of a glass substrate; a convex part that is formed in the base part by dry etching; and a groove that is formed in the base part around the convex part while the dry etching proceeds. The convex part has a convex surface on which a film is formed.

Abstract: A block management method for OPC model calibration includes calculating differences in several different optical functions between first patterns of a first mask and patterns of a second mask corresponding to the first patterns but differing therefrom by a predetermined bias, selecting one or more of the optical functions based on the calculated differences, clustering data of variations in the values of the calculated differences in the selected ones of the optical functions, selecting respective ones of the first patterns in consideration of how the data clusters, and designating the selected first patterns as test patterns.

Abstract: An aqueous polishing composition has been found, the said aqueous polishing composition comprising (A) at least one type of abrasive particles which are positively charged when dispersed in an aqueous medium free from component (B) and having a pH in the range of from 3 to 9 as evidenced by the electrophoretic mobility; (B) at least one water-soluble polymer selected from the group consisting of linear and branched alkylene oxide homopolymers and copolymers; and (C) at least one anionic phosphate dispersing agent; and a process for polishing substrate materials for electrical, mechanical and optical devices making use of the aqueous polishing composition.

Abstract: A self-referencing composite Fabry-Pérot cavity sensor, including methods of use and manufacture. The cavity sensor comprises a substrate defining a first cavity portion juxtaposed to a second cavity portion. The first and second cavity portions are provided having a predetermined depth offset. A polymer or other dielectric material is disposed within the first and second cavity portions. An interference spectrum resulting from a light source of a known wavelength is reflected through the sensor and produces a first refractive index from the first cavity portion offset by a second refractive index from the second cavity portion. The difference in refractive indices can be used to determine various physical parameters. An optical sensor according to the present technology may be used with vapor sensing, pressure sensing, protein detection, photo-acoustic imaging, and the like.

Abstract: A glass substrate manufacturing method of the present invention comprises forming a multi-porous structure layer which comprises nano-size pores at a surface of a glass substrate by etching the surface of the glass substrate with hydrofluoric (HF) acid or an etchant substituting for fluoride. Unlike related art methods, the glass substrate forms no additional coating layer, uses no harmful chemical material, and is given anti-reflection, anti-fogging, and super-hydrophilic characteristics through a simple process at a relatively low temperature. The glass substrate is effectively applied to various applications requiring high light transmission such as a protective filter for a display device, a solar cell, a mobile communication device, glass of a building structure, and an optical element lens.

Abstract: A polymer waveguide for coupling with one or more light transmissible devices, a method of fabricating a polymer waveguide for coupling with one or more light transmissible devices, and a method of coupling a polymer waveguide with one or more light transmissible devices. The polymeric waveguide comprises a grating structure.

Abstract: Provided is a wavelength converting device having excellent optical output. The wavelength converting device includes a substrate and a wavelength converting member disposed on the substrate. The wavelength converting member includes a fluorescent material powder and a binder binding the fluorescent material powder. An upper surface of the wavelength converting member serves as a light emitting surface which includes upper surfaces of the fluorescent material powder and an upper surface of the binder. The binder has first recesses formed adjacent to the fluorescent material powder in the upper surface of the binder.

Abstract: An aqueous polishing composition comprising (A) abrasive particles which are positively charged when dispersed in an aqueous medium having a pH in the range of from 3 to 9 as evidenced by the electrophoretic mobility; (B) water-soluble and water-dispersible hydroxy group containing components selected from (b1) aliphatic and cycloaliphatic hydroxycarboxylic acids, wherein the molar ratio of hydroxy groups to carboxylic acid groups is at least 1; (b2) esters and lactones of the hydroxycarboxylic acids (b1) having at least one hydroxy group; and (b3) mixtures thereof; and (C) water-soluble and water-dispersible polymer components selected from (c1) linear and branched alkylene oxide polymers; (c2) linear and branched, aliphatic and cycloaliphatic poly(N-vinylamide) polymers; and (c3) cationic polymeric flocculents having a weight average molecular weight of less than 100,000 Dalton.; and a process for polishing substrate materials for electrical, mechanical and optical devices.

Abstract: Systems and methods are provided for modulating light of a wavelength of interest. The modulator assembly includes a plasmonic layer that supports surface plasmon polaritons at the wavelength of interest and a layer of solid-state phase change material having a first phase in which it is substantially transparent to light of the wavelength of interest and a second phase in which it is substantially opaque to light of the wavelength of interest. A control mechanism is configured to alter the phase of the solid-state phase change material between the first phase and the second phase. Each of the plasmonic layer and the layer of solid-state phase change material are configured as to provide a plasmonic mode of transmission for light of the wavelength of interest.

Abstract: An article having a nanostructured surface and a method of making the same are described. The article can include a substrate and a nanostructured layer bonded to the substrate. The nanostructured layer can include a plurality of spaced apart nanostructured features comprising a contiguous, protrusive material and the nanostructured features can be sufficiently small that the nanostructured layer is optically transparent. A continuous layer can be adhered to a plurality of surfaces of the nanostructured features to render the plurality of surfaces of the nanostructured features both hydrophobic and oleophobic with respect to fingerprint oil comprising eccrine secretions and sebaceous secretions, thereby providing an anti-fingerprinting characteristic to the article.

Abstract: Described are methods of forming large area templates useful for patterning large area optical devices including e.g. wire grid polarizers (WGPs). Such methods provide for seamless patterning of such large area devices.

Abstract: A method of manufacturing a tunable wavelength optical filter. The method includes steps of forming a first sacrificial oxide film for floating a lower mirror on a semiconductor substrate; sequentially laminating conductive silicon films and oxide films for defining a mirror region on the first sacrificial oxide film in a multi-layer and laminating another conductive silicon film to form a lower mirror; sequentially laminating conductive silicon films and oxide films for defining the mirror region on a second sacrificial oxide film in a multi-layer and laminating another conductive silicon film to form an upper mirror and forming an optical tuning space between the lower mirror and the upper mirror and etching the first sacrificial oxide film and the second sacrificial oxide film such that the lower mirror is floated on the semiconductor substrate.