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Lightweight mirrors – Aluminium has a low density (2.7g/cm3), and can withstand many kilowatts of laser power. Gold coated Aluminium is widely used for scanner mirrors, high speed shutter mirrors, high speed flying optics mirrors, and any application where lightweight and high power handling is needed. Aluminium is easily machined allowing mounting features to be made as part of the mirror. Click here to see scanning mirrors weighing less than 1 gram Cylindrical mirrors – Are used for generating a “line focus”. An intense line of energy can then be scanned over surfaces for heat treatment, or for other applications. Weak cylindrical mirrors can also be used to correct the inherently astigmatic beams from slab laser discharges. Shutter mirrors- When not in use the laser beam is directed to a beam dump or some other collector. Shutter mirrors need to be lightweight to allow rapid movement in and out of the beam, and are often curved to disperse the beam into the dump. Convex axicons, convex cylindrical, and faceted mirrors are offered from copper and aluminium. Click here to see the use of an axicon shutter mirror which generates a “hoop” of energy. Cassegrain Mirrors- Mirrors with through holes are a speciality of Laser Beam Products. Our polishing technology allows surface form to be maintained right up to the circumference of through hole. Through holes can be central, angled through the mirror, or offset. Just about any shape that can be machined can be made into a mirror. Uniquely our gold coating covers the mirror face, edges and internal surfaces of the mirror. Click here for mirror with through holes. Knife edge mirrors- Used
as a variable beam splitter, a knife edge can be passed into a beam to
split the beam spatially. Useful for beam profiling and analysis. Gold
coated copper knife edges will work with many kilowatts of power, and
are of course polarisation insensitive. Roof prisms-
Are used to split a beam into two parts. This type of beam splitter is
cheap, adjustable, polarisation insensitive, and will work with high powers.
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Collimation, reflective
beam expanders, divergence control. |
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Mirror focus units
for high power and long life. |
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| Phase retarders, zero
phase shift mirrors. More... |
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| Useful application
notes on laser optics. More... |
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| © Laser Beam Products 2003 |
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