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More exacting requirements in the laser,
electro-optical and semiconductor industries have fueled the
increasing demand for synthetic fused silica, the purest glass
known to man. Unlike fused quartz, which originates
from mined, natural quartz or silica sand,
fused silica is produced synthetically by the
vapor phase hydrolysis of a silicon halide. The resulting product
is vitreous, non-crystalline, of the highest purity and one of the
most transparent glasses made. Its transmission and homogeneity
exceed those of crystalline quartz without the problems of
orientation and temperature instability inherent in the
crystalline form. Fused silica, with a softening temperature
of around 1,600 degrees Celsius, a very low coefficient of
thermal expansion and resistance to thermal shock and effects
of radiation, is the material of choice for various applications.
In addition to fused silica, Dynasil fabricates optical blanks and
other components from a variety of other manufacturers' optical
materials.
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- OPTICAL COMPONENTS: Lenses, Prisms, Reflectors, Mirrors, Filters,
Optical Flats
- ANALYTICAL INSTRUMENTS: UV Spectrophotometer Cells, Fire Control Devices, Reticle Substrates, Interferometer Plates
- SEMICONDUCTOR/ELECTRONIC: Microcircuit Substrates, Microwave Devices,
Photomasks, Sputter Plates, Excimer Lasers
- LASERS: Beam Splitters, Brewster Windows, Medical/Industrial
Systems, Q-Switches, UV Excimers
- ENERGY: Laser Fusion Research, Isotope Separation, Solar
Cell Covers
- SPACECRAFT/AIRCRAFT: Docking Light Covers, Windows, Re-entry
Heat Shields, Ring Laser Gyros
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- The semiconductor industry, in its quest for smaller and faster chips, has now reached wavelengths of light where fused silica performs best.
- The medical laser industry is requiring a cooler light to operate with less collateral damage to the surrounding cells. Fused silica makes this possible.
- Fused silica is becoming the material of choice at the sub-micron level in today's chip manufacturing process known as stepping.
- Ultraviolet technology, which fused silica has helped make possible, is poised to replace the less effective infrared technology
in many applications as diverse as fire detection to telescopes.
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