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Corning filters are used in trap systems that remove particulate matter (soot) from diesel exhaust emissions. These filters have a cellular structure with individual channels open and plugged at opposite ends. Exhaust gases enter the open end, flow through the pores of the cell walls, and exit the filter through the adjacent channel. Soot particles are too large to flow through the pores, and they collect on the channel walls. Periodically the filter is regenerated (heated) to consume the soot and clean the filter.
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EKSPLA offers crystalline materials - Barium Nitrate - Ba(NO3)2 and undoped potassium gadolinium tungstate KGd(WO4)2 or KGW which have attracted much interest as most suitable crystals for stimulated Raman scattering (SRS). These materials can be used for frequency conversion in lasers for extending of tuning range. SRS in crystals is compatible with current all-solid-state technology and provides a very simple, compact means of frequency conversion
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BBO is a nonlinear optical crystal with combination of a number of unique features: Wide transparency region Broad phase-matching range
Large nonlinear coefficient High damage threshold Wide thermal acceptance bandwidth High optical homogeneity
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ß-Barium Borate (ß-BaB2O4 or BBO) is an excellent optical non-linear crystal recently developed. It exhibits broad phase matching range, high non-linearity (about 6 times more than that of KDP), high optical damage threshold, good mechanical and temperature stability. This trigonal uniaxial crystal possesses wide transparency range from 0.19 to 3.3 µm. Its useful transmission range (<5%/cm) is 0.21 to 2.1 µm and it has been demonstrated to be efficient for the generation of second harmonic radiation down to about 0.21 µm. It is also useful for broadly tunable optical parametric oscillators (OPOs) and amplifiers (OPAs). Autocorrelation applications may be performed down to 0.19um. Its exceptional IR transmission and wide thermal acceptance bandwidth allow high average power OPO/OPA operation, with minimal heating from long wavelength idler radiation.
BBO's relatively narrow angular acceptance bandwidth (especially in the UV) may limit its usefulness in certain applications involving lasers with less than diffraction limited beam quality. Its mild hygroscopicity should not limit its usefulness in most circumstances.
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Refrigerated units are insulated units without mechanical refrigeration. Eutectic refrigeration allows the required temperature to be maintained 24 hours and more for chilled products as well as for frozen.
The eutectic plate releases a constant cooling capacity due to the latent melting heat from the eutectic mixture.
Placed in the top part of the container, the eutectic plate releases the cooling capacity previously accumulated in the cold room during the freezing process.
To ensure the maximum efficiency from eutectic plate, the eutectic liquid must be completly solidified.
The freezing temperature must be at least 5°C less than the melting temperature of the eutectic fluid.
Depending on the type of refrigeration unit used, the freezing time may be from 6 to 24 hours.
Seven eutectic solutions ensure maintenance of the requested temperature
For chilled or frozen products.
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Tech-Etch can photoetch flow field bi-polar plates used in PEM (Proton Exchange Membrane) Fuel Cells. Bi-polar plates, or separator plates, are conductive plates in a fuel cell stack that act as an anode for one cell and a cathode for adjacent cells. The plates contain flow channels for the fluid feeds and may contain conduits for heat transfer.
Tech-Etch can produce plates with interlacing front and back side channels to produce a corrugated effect for cooling purposes.
In addition, photoetching can be combined with machining to produce cross-over channels. Tolerances up to .0005 inches can be achieved in typical materials such as Titanium and Stainless Steel for these anode and cathode plates. These production processes are extremely desirable in the design and prototype stage of fuel cell development. Tech-Etch manufactures their fuel cell plates to customer specifications.
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Advanced materials-technologies
Carbone Lorraine's Advanced Materials and Technologies division designs advanced technology solutions based on graphite and other materials for highly demanding industrial environments: industrial processes at high temperatures, high-energy braking and anticorrosion equipment for the chemicals and pharmaceutical industries.
The Group is innovating in order to respond as effectively as it can to its customers' needs. Its uncontested expertise and know-how have enabled Carbone Lorraine to establish itself as world leader in graphite anticorrosion equipment and world number two in high-temperature applications of isostatic graphite.
GRAPHITE'S PROPERTIES
Graphite offers optimum resistance to very high temperatures and highly corrosive environments.
Heat losses are controlled and thermal conduction optimized.
Graphite is a self-lubricant and can be machined easily.
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Onyx has product lines of various Slabs, Disks and Rod-based AFB® components.
Onyx’s AFB® Yb:YAG/Sapphire and Yb:YAG/Undoped YAG disks are available in two-layer or three-layer configurations (one or two cladding layers, respectively). Specify your preference of Yb dopant, cladding type, layer thicknesses, and surface finishes. Both external surface and interface coatings are available.
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EKSPLA offers: The mass production of LiIO3 crystals Attractive discounts for OEM customers Different shapes (slabs, cylinders, Brewster ends) are available Standard open ring holders Recoating and repolishing service
AR, BBAR and P - coatings subject to customer's choice P-coatings optimised at pump wavelengths BBAR coatings for wavelength tuned Ti:Sapphire and other lasers
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LBO is a nonlinear optical crystal with combination of a number of unique features: Wide transparency region Broad Type 1 and Type 2 non-critical phase-matching (NCPM) range Small walk-off angle High damage threshold Wide acceptance angle High optical homogeneity
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All Nichia LEDs and LDs (except for LD Slot Module) comply with RoHS Directive and are Pb-free soldering available. Each product of Max Soldering Temp. 260deg.C is indicated with "P"
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Representative of our fine chemical products. The chemical refinement technology, the powder synthesis (combining) technology, and the analytical evaluation technology have been succeeded since the establishment. The above technologies have been and will be applied and contributed not only to Nichia's phosphor but also our brighter LEDs .
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Yb-Doped Potassium Gadolinium Tungstate (Yb:KGd(WO4)2) and Yb-doped Potassium Itrium Tungstate (Yb:KY(WO4)2) single crystals are the laser crystals for diode or laser pumped solid-state laser applications.
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Nd doped Yttrium Vanadate (Nd3+:YVO4) is one of the most effective and advanced materials for diode pumped lasers. Compactly designed Nd3+:YVO4 lasers with green, red and blue light output are really perfect means for material processing, spectroscopy, medical diagnostics, laser printing and other applications. Compared to Nd3+:YAG and Nd3+:YLF, Nd3+:YVO4 diode pumped lasers have: wide absorption bandwidth, low lasing threshold, high slope efficiency, large luminescent cross-section, linearly polarized emission and single-mode output.
Yttrium Vanadate doped with Er3+ or Yb3+ and also with a combination of Er3+, Yb3+ (YVO4:Er3+; YVO4:Yb3+; YVO4:Er3+,Yb3+) work on wavelenghts of 1.54, 1.61 µm and are used in eyesafe laser applications. In contrast to Er3+, Yb3+ doped phosphate glass, Er3+, Yb3+:YVO4 crystals can be used in CW mode with high pump energy and high efficiency. Its thermal conductivity is much higher than that of glass and this improves pump characteristics of the laser and relaxes cooling requirements. Yb3+:YVO4 has a wide absorption bandwidth at 0.98 µm and can generate with high effectivity at 1.02 µm, due to low losses of the pump energy.
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AFB® YVO4 or GdVO4 components are extremely useful for higher power in YVO4-based laser systems. Undoped end-caps increase damage threshold by separating the pump input face with the lasing doped portion. Onyx produces slabs and rods with plano or spherical end faces.
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Careful selection and optimum processing of our raw materials make sure that technical needlemats from Frenzelit have consistently high insulation properties - whether they are supplied in reels, punched or cut into 3D and 2D shapes by water jets.
Our technical needlemats are used not only in the insulation field but also in many other areas. The product line chosen is determined according to the insulation capcity required and the application temperature.
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Scitec Instruments supplies a range of high quality synthetic crystals. The use of high quality starting materials for crystal growth, whole boule interferometry, and precise measurement of bulk losses using transmission spectroscopy ensures that each crystal will perform to customer specifications. Each rod is inspected with a 532nm laser to verify it is free of bubbles and inclusions. Advanced growing and manufacturing technology and state-of-the-art fabrication and coating processes result in a consistently reliable finished product. Our product range offers a wide variety of finished laser rods and slabs with high optical homogeneity, consistent performance and high processing accuracy suitable for R&D and OEM requirements.
Nonlinear optical (NLO) crystals are used in frequency conversion for lasers. We supply a complete line of NLO crystals including BBO, KTP, KNbO3, KDP & DKDP and LiNbO3 crystals.
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Overview :
BBO : Beta Barium Borate
One of the most versatile nonlinear optical crystal materials available.
Features :
- High optical homogeneity (dn ~ 10-6)
- Excellent resistance to thermal fracture
- Up to 35 mm length
- Broad optical transparency range (190 to 3500 nm)
- Large nonlinear coefficients (deff = 1.94 pm/V for Type I SHG of 1064 nm)
- Large birefringence (no-ne = 0.115 @ 1064 nm)
- High laser damage threshold (5 GW/cm2 @ 1064 nm with 10 ns pulses)
Beta Barium Borate ( b-BaB2O4 ), or BBO, is one of the most versatile nonlinear optical crystal materials available. BBO is most commonly used for second-or higher-order harmonic generation of Nd:YAG, Ti:Sapphire, argon ion and alexandrite lasers.
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KTP (KTiOPO4) is a nonlinear optical crystal, which possesses excellent nonlinear, electrooptical and acoustooptical properties. A combination of high nonlinear coefficient, wide transparency range, and broad angular as well as thermal acceptance makes KTP very attractive for different nonlinear optical and wavequide applications.
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MICRO TC
It%u2019s a rotary contactless transducer for transmission of signal temperature from a rotating element to a stationary part.
The output signal may be 0-20ma, 4-20ma. ( 0-5VCC)
Max RPM. 5000.
Important in this transducer is the security between the input signal
(thermoelement) and output analogic signal. The transmission from rotating part and stationary is optical. A receiver circuit reconverts the digital signals in analogic output.
The galvanic insulation avoids eventual damages at equipments connected in stationary side, in cases of short circuit from thermoelement and electric resistors.
The following versions are available:
micro tcj for thermocouple j type
micro tck for thermocouple k type
micro tctr for thermocouple pt100
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Synthetic single-crystal sapphire is a single crystal form of corundum, Al2O3, also known as alpha-alumina, alumina, and single crystal Al2O3. Sapphire is aluminium oxide in the purest form with no porosity or grain boundaries, making it theoretically dense. The combination of favourable chemical, electrical, mechanical, optical, surface, thermal, and durability properties make sapphire a preferred material for high performance system and component designs.
High purity and low dislocation density make Kyropoulos sapphire an ideal material for a wide range of electronic substrates. We can supply epi-polished sapphire substrates according to SEMI standard, as well as per customer specification. We are able to deliver the tightest specification in the industry to meet all your particular requirements.
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We offer thin, high-quality improved resolution disks, laminated or AR coated, for the protection of displays in almost any size and for different technologies.
Whether Tablet PC, TV, navigation or industry - everywhere our protection panels bring the crucial advantage.
The function of the displays increased by the shaping and organization of the panel crucially, e.g. with control elements with touch function. The typical layout by shaping and design supports the individuality of the product.
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Al2O3:Ti3+ – titanium-doped sapphire crystals combine supreme physical and optical properties with broadest lasing range. It’s indefinitely long stability and useful lifetime added to the lasing over entire band of 660–1050 nm challenge “dirty” dyes in variety of applications. Medical laser systems, lidars, laser spectroscopy, direct femtosecond pulse generation by Kerr-type mode-locking – there are few of existing and potential applications.
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Frenzelit woven fabrics are excellent materials for thermal and acoustic insulation as well as good carriers for coatings
Weave (depending on product):
plain weave, twill weave, satin weave
Dimensions (depending on product):
width : 840, 920, 1000 mm, 1600 mm
thickness: 0.7 - 5 mm
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Film technologies are becoming more and more important for the development of modern sciences and technologies. The development of film technology needs various and high quality single crystalline substrates. Firstly, the cell parameter of the substrate must match with the film to be grown on the substrate and it varies well, so that only special single crystal which has certain lattice constant, correct orientation and high fabrication accuracy can be used for the film. Secondly, the substrate crystal must be structure perfectly, and the crystal structure defect such as twin and inclusion must be as few as possible. The surface of the substrate must be polished to very high flatness and micro roughness (the test result of AFM should be better than a few angstrom in an 5x5um area, for example). The substrate must be able to stand to high, low temperatures and chemical environment during the film growth and use process. Also some physical, mechanical properties are necessary for the substrate. For example, the microwave dielectric loss must be very low for the substrates used in microwave communication.
Gadolinium Gallium Garnet (GGG, Gd3Ga5O12) is a magneto-optical and microwave substrate. It is the best substrate material for infrared optical isolator (1.3 and 1.5um), which is a very important device in optical communication. It is made of YIG or BIG film on the GGG substrate plus birefringence parts. Also GGG is an important substrate for microwave isolator and other devices. Its physical, mechanical and chemical properties are all good for the above applications.
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ZnSe is a preferred material for lenses, windows, output couplers and beam expanders for its low absorptivity at infrared wavelengths and its visible transmission. For high-power applications, it’s critical that the material bulk absorption and internal defect structure be carefully controlled, that minimum-damage polishing technology be employed, and the highest quality optical thin-film coatings are used. The material absorption is verified by CO2 laser vacuum calorimetry. Our quality assurance department provides testing and specific optics certification on request.
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Other materials, Semi-finished products
