Uv fused silica highprecision windows thorlabs, inc. Uv fused silica lens custom optical lens manufacturer. Jgs1 is synthetic amorphous silicon dioxide of extremely high purity. Corning hpfs 7979, 7980, 8655 fused silica glass fab, inc. Uv grade fused silica fsuv1 is synthetic amorphous silicon dioxide of extremely high purity. It is very popular due to cheap production, as it is made from sand, very good thermal dimensional stability, and its durability. Ohara synthetic fused silica is produced by vaporphase axial deposition and provides ultrahigh purity, bubble free material.
This grade of quartz glass is known as fused silica. It is designed to meet the demanding requirements of laser electrooptic applications. Fused silica is perfect optical material due to its good uv and ir transmission, low coefficient of thermal expansion. The crystalclear amorphous silicon dioxide material contains only silicon and oxygen and has nearzero impurities. In addition to its superior transmission characteristics, synthetic fused silica exhibits higher thermal properties, exceptional purity and excellent environmental durability for demanding applications. Quartz glass and fused silica for optical applications. Fused silica can operate down to 190 nm and all through the visible. Quartz glass synthetic fused silica with optical quality. Typical of glasses, it lacks long range order in its atomic structure. Uv grade fused silica uvfs is ideal for use in applications in the uv range that go beyond the transmission of nbk7. In addition, these windows will limit flatness to 110 fused silica windows available uncoated, or with antireflection coatings optimized for uv, visible or ir spectrum. We pride ourselves on our products reaching you on time and to specification while our.
Fused silica windows are ideal for uv applications. Thorlabs uv grade fused silica biconvex lenses are available here with a uv antireflection coating for the 245 400 nm range deposited on both surfaces. This is required for good uv throughput down to 320 nm. Fused silica features high transmission from 200nm to 2. Fused silica is formed by chemical combination of silicon and oxygen. When compared to nbk7, uv fused silica is transparent over a wider range of wavelengths 185 nm 2. Fused silica uv gradesio2 specifications are available.
Properties of optical glass click on a material above or choose a schott or ohara part number, to see the spectral and the material properties. Determination of refractive index of silica glass for infrared wavelengths by ir spectroscopy, j. Creator optics can manufacture high precision fused silcia windows. The surface quality can up to 105, surface accuracy flatness can up to 120 lambda and parallelism up to 30 arc second.
Heraeus has mastered the manufacturing of fused silica base materials for uv, vis, and nir spectroscopy applications. Glass codes 7979, 7980, and 8655 are high purity noncrystalline silica glasses with excellent optical qualities. The 10qw4030 laser grade parallel window is parallel to less than 30 arc sec for minimal transmitted beam deviation. We offer many different grades of fused silica to support. Wholesale uv fused silica,uv fused silica suppliers. Compared to nbk7, uv grade fused silica offers high transmission deeper into the uv down to 185 nm, better homogeneity, and a lower coefficient of thermal expansion. Such as corning 7980, nkfs, jgs1, jgs2, jgs3 and so on. Uv grade fused silica offers high transmission in the deep uv and exhibits.
Southern african large telescope prime focus imaging. Fused silica is a noncrystalline glass form of silicon dioxide quartz, sand. Quartz glass uvgrade fused silica optical transmission. Thorlabs uv fused silica highprecision windows are available in four sizes ranging from o12 to o2 and a rectangular 25 mm x 26 mm size. However, they have the added advantage that they are epoxied into a round cell, allowing them to be mounted in. Quality grade selection chart attribute fused silica 7980 standard grade 7980 krf grade 7980 arf grade 7980 mirror grade 7980 industrial grade 7979 ir grade 8655 arf grade visible transmittance uv transmittance infrared transmittance homogeneity certified in useaxis aa, a, c, f by size. Uv grade fused silica offers high transmission in the deep uv and exhibits virtually no laserinduced fluorescence as measured at 193 nm, making it an ideal ch. These uncoated uv grade fused silica planoconvex lenses are available in sizes ranging from o2 mm to o75 mm. However, despite this shortcoming, fused quartz still offers superior thermal shock and chemical resistance, as. Fused silica is the glassy form of quartz and is thus isotropic.
Quartz glass also exists as an opaque variety and with different coloration to change the physical and chemical properties like transmission or absorption for specific wavelength filter glass. A diffusor with a performance close to the ideal diffusor has many applications, be it in reflection or transmission orientation. Uv grade fused silica is synthetic amorphous silicon dioxide of extremely high purity providing maximum transmission from 195 to 2100 nm. Its highly cross linked three dimensional structure gives rise to its high use temperature and low thermal expansion coefficient. In addition to superior transmission, the synthetic fused silica of these optical windows exhibit higher thermal properties, exceptional purity, and excellent environmental durability for. The most important optical properties for this wavelength region are high transmission and excellent. Below are just a small expample of the fused silica wafers that we have in stock. Uvgrade fused silica is wellsuited for applications that benefit from increased transmission deeper into the uv. Optical quartz glass synthetic uv grade fused silica optical transmission. Fused silica uv gradesio2 specifications are available optical refractive index at n e 1. Our lightweight glass or acrylic optical domes can be built from your own drawings or custom designed in house by our experts using zemax optical design software. Only such unique quartz glass qualities can offer this high constant transmission for uv light of greater than 80% already at wavelengths as low as 185 nm. Silicon is often used for thermal imaging and other weight sensitive applications so is ideal for these types of custom made lenses.
Fused silica is commonly used in applications from the ultraviolet. Equivalent to suprasil 1 and 2 heraeus, spectrosil a and b saintgobain and coming 7940 coming, dynasil 1100 and 4100 dynasil. Zemax, zemax copy to clipboard share document by email. The 10qw4030 lasergrade parallel window is parallel to less than 30 arc sec for minimal. The sellmeier fit for fused quartz is a zemax fit of index data for. Uv fused silica windows feature low distortion, excellent parallelism, low bulk scattering, and fine surface quality. Thorlabs uv grade fused silica positive meniscus lenses are available either uncoated or with a uv antireflection coating for the 290 370 nm range deposited on both surfaces. This noncrystalline, colorless silica glass combines a very low. Ohara also supplies natural quartz made from highpurity crystals. Our stock ranges of uv fused silica windows also have. Knight optical supply custom dome and window solutions to underwater camera manufacturers globally. High purity fused silica hpfs fused silica corning. These uv grade fused silica planoconvex lenses, which are available in o2 mm, o3 mm, o12, and o1 sizes, have an ar coating for the 650 1050 nm range deposited on both surfaces. Uv grade fused silica offers high transmission in the deep uv and exhibits virtually no laserinduced fluorescence as measured at 193 nm, maki.
Making them ideal for spectroscopic instruments in the uv. Commercial grade uncoated fused silica windows optics. Quartz glass and fused silica for optical applications heraeus. Cornings high purity fused silica glass is known throughout the. Esco optics manufactures catalog and custom optics from fused silica and fuzed quartz. We can supply all quality levels from industrial grade to high grade homogeneity, bubble free grades including 2directional and 3directional, and excimer grades. Some may think fused silica is a simple material and there is little difference in which grade should be used. Normal varieties contain water which gives strong absortion in. Heraeus and nikon both produce extremely high grade pure fused silica glasses that exhibit excellent ultraviolet and infrared performance. We have an extensive stock of fused silica and fused quartz. Uv grade fused silica offers high transmission in the deep uv and exhibits virtually no laserinduced fluorescence as measured at 193 nm, making it an.
Shear plate collimation tester newport corporation. This makes them perfectly suited for a wide variety of demanding applications, including multiphoton imaging systems, and intracavity laser applications. Galvoptics are specialist suppliers of optical lenses and filters including our custom built uv fused silica lens. Pure silica rods for specialty fiber applications heraeus has long produced fused silica materials with optimized optical properties for a broad range of specialty fiber applications. Fused silica wafers jgs1, jgs2, jgs3 grades refreactive index. Round windows can be purchased from stock uncoated 185 nm 2. Uv grade fused silica is manufactured synthetically through the oxidation of high purity silicon by flame hydrolysis. The curve above shows the typical optical transmission of our uv grade quartz glass at 10,0 mm glass thickness for wavelengths from 160 5000 nm. This noncrystalline, colorless silica glass combines a very low thermal expansion coefficient with good optical qualities, and excellent transmittance in the ultraviolet region. Commercial grade uncoated fused silica windows offer commercial quality, at an affordable. Materials data fused silica fused quartz esco optics esco. Uses range from substrates to high powered laser systems.
High precision fused silica windows feature laser grade surface quality up to sd 2010 and parallelism up to 5 arc sec. We offer many different grades of fused silica to support various product applications. Fused silica is offered in many different grades to support various product applications. Uv grade fused silica windows have excellent uv transmission working efficiently at 175nm. It has high stability and resistance to thermal shock over large temperature excursions, wide temperature operating range and high laser damage threshold. Both hydrous and anhydrous low oh content quartz with. Due to metallic impurities and oh content, optical grade fused quartz does not boast the range of transmission offered by uv and ir grade fused silica. Uv fused silica windows are precision manufactured using uv grade synthetic fused silica. Lots of glasses are impermeable to ultraviolet radiation, but only pure fused silica only sio 2 is transparent for wavelengths uv. Quartz glass and fused silica for uv applications heraeus. All of these customized fused silica windows are made of uv grade or ir grade synthetic fused silica. Solids 223, 158163 1998 sellmeier formula is reported in ref. Interspecimen comparison of the refractive index of fused silica, j. Glass codes 7980, 7979, and 8655 are high purity noncrystalline silica glasses with excellent optical qualities.
Fused silica viewports offer increased transmission of uv and ir wavelengths. Mounted planoconvex round cylindrical lenses, uv fused silica. Materials data fused silica fused quartz esco optics. This noncrystalline, colorless silica glass combines a very low thermal expansion coefficient with good optical qualities, and excellent transmittance in thf orientation and temperature instability inherent in. Our stock range of uv fused silica windows are made from corning 7980 grade 2g, which is the equivalent of spectrosil 2000 also referred to as spectrosil b. Fused quartz is prone to phosphorescence and solarisation purplish discoloration under intense uv illumination, as is often seen in flashtubes. Jgs1 is transparent in the ultraviolet and visible regions, and has no absorption hands in 170250 nm wavelength intervals. Refractive index of fused silica fused quartz malitson. Uv grade synthetic fused silica sold under various tradenames including hpfs, spectrosil, and suprasil has a very low metallic impurity content making it transparent deeper into the ultraviolet. Duv uv, vis and ir applications lithosil synthetic fused silica.
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