Abstract: A method of manufacturing an optoelectronic light emitting semiconductor device is provided where a Multi-quantum Well (MQW) subassembly is subjected to reduced temperature vapor deposition processing to form one or more of n-type or p-type layers over the MQW subassembly utilizing a plurality of precursors and an indium surfactant. The precursors and the indium surfactant are introduced into the vapor deposition process at respective flow rates with the aid of one or more carrier gases, at least one of which comprises H2. The indium surfactant comprises an amount of indium sufficient to improve crystal quality of the p-type layers formed during the reduced temperature vapor deposition processing and the respective precursor flow rates and the H2 content of the carrier gas are selected to maintain a mole fraction of indium from the indium surfactant to be less than approximately 1% in the n-type or p-type layers.

Abstract: Embodiments of a microfluidic assembly comprise at least two adjacent microstructures and a plurality of interconnecting fluid conduits which connect an outlet port of one microstructure to an inlet port of an adjacent microstructure. Each microstructure comprises an inlet flow path and an outlet flow path not aligned along a common axis. Moreover, the microfluidic assembly defines a microfluidic assembly axis along which respective inlet ports of adjacent microstructures are oriented or alternatively along which respective outlet ports of adjacent microstructures are oriented, and each microstructure is oriented relative to the microfluidic assembly axis at a nonorthogonal angle.

Abstract: A reactor is provided comprising a reactor substrate and upper and lower manifold structures. The upper manifold structure and the lower manifold structure each comprise at least one flow directing cavity that reverses a flow direction of a fluid flowing through the relatively short open-ended channels of the substrate between the upper and lower manifold structures. The flow directing cavities of the upper and lower manifold structures are configured to direct fluid from the inlet region of the upper manifold structure to the outlet region of the lower manifold structure in an additional serpentine path defined by the flow direction reversals introduced by the upper and lower manifold structures. Additional embodiments are disclosed and claimed.

Abstract: Disclosed is a reactor for reacting fluids such as fluids in continuous flow, the reactor including a multicellular extruded body having cells extending in parallel in a direction from a first end of the body to a second end, the body having a first plurality of cells open at both ends of the body and a second plurality of said cells closed at one or both ends of the body, the second plurality being contiguous cells and cooperating to define at least in part a fluidic passage extending at least partly through the body. The fluidic passage desirably has a serpentine path back and forth along cells of the second plurality of cells, and the passage connects laterally from cell to cell, within cells of the second plurality, at or near the ends of the body.

Abstract: Disclosed is a method of performing a reaction involving a gaseous reactant stream and a falling film liquid reactant stream by providing a reactor comprising a first multicellular extruded body oriented with its cells extending in parallel in a vertically downward direction from a first end of the body to a second end, the body having a first plurality of cells open at both ends of the body and a second plurality of said cells closed at one or both ends of the body, the second plurality of cells being arranged in one or more groups of contiguous cells and cooperating to define at least in part at least one fluidic passage extending through the body; and further flowing a liquid reactant film down inner surfaces of the first plurality of cells while flowing a gaseous reactant stream up or down the centers of the first plurality of cells while flowing a first heat exchange fluid through the at least one fluidic passage. Various alternative devices for performing the method are also disclosed.

Abstract: Particular embodiments of the present invention relate generally to semiconductor lasers and laser projections systems and, more particularly, to schemes for controlling semiconductor lasers. According to one embodiment of the present invention, a laser having a gain section, a phase section and a wavelength selective section is configured for optical emission of encoded data. The optical emission is shifted across a plurality of laser cavity modes by applying a quasi-periodic phase shifting signal I/V? to the phase section of the semiconductor laser. The amplitude of the quasi-periodic signal transitions periodically between a maximum drive level and a minimum drive level at a frequency that varies randomly over time.

Abstract: Disclosed is a device for processing fluids, the device comprising an extruded body having multiple elongated cells therein, the body having a first fluidic passage therethrough defined principally within at least some of said cells, the first fluidic passage having a longitudinally serpentine path back and forth along the at least some of said cells.

Abstract: A laser projection system is provided comprising a light source, a phase retarding element, and a beam scanning element. The light source comprises at least one frequency-converted laser source comprising a wavelength-tunable laser diode and a wavelength conversion device. The phase retarding element is configured to resolve the polarization of a frequency-converted laser beam into two orthogonal linearly polarized components such that one component of polarization is phase delayed relative to the other. Frequency-converted laser beam polarization in the 2D image frame is a function of the degree to which the respective components of polarization are delayed relative to each other and varies with wavelength variations in the output of the wavelength-tunable laser diode. Polarization variations of the frequency-converted laser beam in the 2D image frame are sufficient to scramble image speckle patterns across the 2D image frame.

Abstract: Described herein are methods for making microfluidic devices comprising glass or glass-containing materials, wherein the methods have decreased cost and/or improved dimensional properties over similar formed glass articles produced using current techniques.

Abstract: A microstructure for chemical processing and manufacture is disclosed. The microstructure includes a plurality of microchannel walls constructed of glass, ceramic, glass-ceramic or combinations of these materials, which define at least one microchannel for accommodating chemicals to be processed. At least one coating layer including a catalyst support and a catalyst is adhered to the plurality of microchannel walls. A method of manufacturing a microstructure for chemical processing and manufacture is also disclosed.

Abstract: A fluid porting assembly for a microreactor comprising a process fluid passageway, a pliable seal, and a cooling fluid passageway is provided. The pliable seal is positioned in the vicinity of the process fluid outlet and is configured to define a sealing interface between the process fluid outlet and a fluid port of a microreactor. The cooling fluid passageway terminates at a cooling fluid interface and defines a dispensing gap between the cooling fluid interface and the sealing interface. The cooling fluid outlet is configured to distribute cooling fluid about a periphery of the pliable seal and to direct cooling fluid away from the periphery of the pliable seal through the dispensing gap when the pliable seal of the fluid porting assembly engages a fluid port of a microreactor. The cooling fluid removes heat from areas of the microreactor in the vicinity of the fluid port and pliable seal.

Abstract: Methods of positioning an optical unit in an optical package are provided. According to one method, a partially assembled optical package is provided. The wavelength conversion device within the package comprises a conversion layer having a waveguide portion formed therein. The optical unit is coarse-positioned in the optical package to direct light from the laser diode to the wavelength conversion device in the form of a beam spot on an input face of the wavelength conversion device. The intensity of the frequency-converted optical signal output from the wavelength conversion device is monitored as the position of the optical unit is modified to 1D scan the beam spot along a portion of a crossing axis Y1 that crosses a planar projection of the conversion layer of the wavelength conversion device. Subsequently, the crossing axis Y1 is offset and the intensity monitoring step is repeated as the beam spot is 1D scanned along an offset crossing axis Y2.

Abstract: Single domain wafer-scale colloidal crystals and macroporous polymers are formed by dispersing concentrated solutions of colloids, desirably monodisperse silica colloids, in a viscous monomer, desirably ethoxylated trimethylolpropane triacrylate, and spin-coating them onto a substrate. Subsequent photopolymerization produces three-dimensionally ordered colloidal crystals trapped inside a polymer matrix. Selective removal of the polymer matrix, such as by oxygen plasma treatment, or removal of the silica spheres, such as by wet etching, produces large-area colloidal crystals and macroporous polymers, respectively.

Abstract: A method and system for reducing arbitration latency employs speculative transmission (STX) without prior arbitration in combination with routing fabric scheduled arbitration. Packets are sent from source locations to a routing fabric through scheduled arbitration, and also through speculative arbitration, to non-contentiously allocate outputs that were not previously reserved in the routing fabric to the speculatively transmitted packets.

Abstract: A microreactor assembly [100] is provided comprising a fluidic interconnect backbone [10] and plurality of fluidic microstructures. Interconnect input/output ports [12] of the fluidic interconnect backbone [10] are interfaced with microchannel input/output ports [14] of the fluidic microstructures at a plurality of non-polymeric interconnect seals [50]. Interconnect microchannels [15] are defined entirely by the fluidic interconnect backbone [10] and extend between the non-polymeric interconnect seals [50] without interruption by additional sealed interfaces. At least one of the fluidic microstructures [20, 30, 40] may comprise a mixing microstructure formed by a molding process. Another of the fluidic microstructures [20, 30, 40] may comprise an extruded reactor body. Still another fluidic microstructure [20, 30, 40] may comprise a quench-flow or hydrolysis microreactor formed by a hot-pressing method.

Abstract: A microreactor assembly is provided comprising a fluidic microstructure and an injector assembly. The injector assembly comprises a liquid inlet, a gas inlet, a liquid outlet, a gas outlet, a liquid flow portion extending from the liquid inlet to the liquid outlet, and a gas flow portion extending from the gas inlet to the gas outlet. Further, the injector assembly defines an injection interface with a microchannel input port of the fluidic microstructure. The injector assembly is configured such that the gas outlet of the gas flow portion is positioned to inject gas into the liquid flow portion upstream of the liquid outlet, into the liquid flow portion at the liquid outlet, or into an extension of the liquid flow portion downstream of the liquid outlet and is configured such that gas is injected into the liquid flow portion or the extension thereof as a series of gas bubbles.

Abstract: A method of manufacturing a microstructure includes filling a microchannel with a slurry including a sol-gel binder, removing a portion of the slurry from the microchannel such that a slurry layer is disposed on or between the plurality of microchannel walls, and heating the microstructure for a sufficient time and at a sufficient temperature to cure and bind the slurry layer to the microchannel walls.

Abstract: Embodiments of a microchannel reactor comprise a microchannel housing comprising a plurality of channels and an upper microstructure disposed above the microchannel housing. The upper microstructure comprising a gas feed circuit, a liquid feed circuit, and at least one mixing cavity. The mixing cavity is in fluid communication with at least one reactive passage of the microchannel housing. The gas feed circuit comprises at least one gas feed inlet, and the liquid feed circuit comprises at least one liquid feed inlet and at least one liquid reservoir adjacent to the mixing cavity, wherein the liquid reservoir is operable to deliver a liquid feed into the mixing cavity.

Abstract: The present disclosure relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present disclosure, a method of operating a laser projection system is provided. According to the method, the laser projection system is utilized to display a sequence of pixelized image frames comprising an alternating sequence of relatively high intensity active projection periods ModON and relatively low intensity inactive projection periods ModOFF. A complementary control signal transitions between an active state QON during the relatively high intensity active projection periods ModON and an inactive state QOFF during the relatively low intensity inactive projection periods ModOFF.

Abstract: A unitary structure (10) is comprised of two or more planar substrates (30, 40) fused together by a glass or glass-ceramic sintered frit structure (20) disposed therebetween. The pattern of the sintered patterned frit material defines passages (70) therein, and the sintered frit structure (20) has a characteristic minimum feature size (60) in a direction parallel to the substrates. Particles of the frit material have a poly-dispersed size distribution up to a maximum frit particle size, in a maximum length dimension, and the minimum feature size or dimension (60) of the sintered patterned frit material is greater than 2 times the maximum frit particle size, desirably about 3 times or more, and less than 6.25 times the maximum frit particle size, desirably about 5 times or less, most desirably about 4 times or less. A method for making the structure (10) is also disclosed.