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Aspheric Optics for the Far Infrared Range

19 Sep 2016

For most situations, spherical optics are used to focus laser beams.  For applications requiring a very short focal length, spherical aberrations can become an issue.

Aspheric lenses with at least one free-form surface produced using CNC polishing techniques can greatly reduce this effect. Ideally, aspherical lenses replace a system of several spherical lenses, thereby reducing weight and losses through surface scattering.  

LASER COMPONENTS offers aspheric lenses for use in the FIR range in the following materials:  ZnSe, Ge, Si, CaF2, Cu and Al.  For a substrate with diameter 150mm a shape deviation of ½ fringe and a surface roughness is < 30 Å RMS can be achieved.

The aspheres can be coated according to customer request for all wavelengths from 2µm to 16µm.

http://www.lasercomponents.com/uk/optics/laser-optics/ir-laser-optics/

CONTACT DETAILS
Laser Components (UK) Ltd
Goldlay House
114 Parkway
Chelmsford
Essex
CM2 7PR
United Kingdom
Tel: +44 1245 491 499
Fax: +44 1245 491 801
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