Phase shifting mirrors for CO2 lasers for cutting applications

1st November 2019
Alex Lynn

In laser cutting applications using CO2 lasers, circularly polarised light can be used for example to achieve a uniform and axis independent cut. One way of achieving circularly polarised light at 10.6um is to use a phase shifting mirror. 

Through use of a coating which can be applied to both copper and silicon substrates, circular polarisation is achieved by a λ/4 phase shift of the incident linearly polarised light.

LASER COMPONENTS can manufacture phase shifting mirrors in customer specified dimensions, radii of curvature, wavelengths and retardations.

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