Metallic Coated Optics

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Product Catalog 2016

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Off-axis Parabolic Metal Mirrors

Off-axis Parabolic Metal Mirrors
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Material Aluminium
Diameter tolerance +0/-0.4 mm
Clear aperture >80%
Focal length tolerance ±1%
Surface roughness <17.5 nm (RMS)
Surface figure <λ/4 @ 632.8 nm (RMS)
Laser damage threshold Protected Aluminum: >0.25 J/cm² for 10 ns pulses @ 1064 nm
Protected Gold: >0.9 J/cm² for 10 ns pulses @ 1064 nm
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Attention! You can customise this product to your needs.
The main property of Off-axis parabolic mirror is to focus light at an angle with beam propagation axis. This allows to avoid comatic aberration (or coma) that would emerge in case of using spherical mirror at an angle. Off-axis parabolic mirrors come into assistance where usage of transmitting optics is limited, for example due to chromatic aberrations, group velocity dispersion (GVD) or spectral bandwidth. Standard items comprise parabolic mirrors machined by diamond turning technique and coated with protected gold and silver coatings.
varna Aluminum Substrate Mirrors
varna Available in 30o, 60o, or 90o Off-Axis
varna Mounting Plates Also Available

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You can customise this product to your needs. If you do not find suitable specifications for your application please contact us for custom solution.

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Laser optics direct from stock. All products are inspected at metrology laboratory, certified and delivered worldwide direct from European Union.