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Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

20/04/2021 - 22/04/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Wire grid polarisers from Laser Components

Wire grid polarisers from Laser Components

Laser Components’ partner Dynasil Optometrics has developed a special holographic technique to produce infrared wire grid polarisers with sub-micron grid spacing. Using technology similar to that used to produce their range of holographic diffraction gratings, coherent laser beams are projected onto a photo-resist coated substrate to produce a precise pattern of equally spaced grooves. 

The resulting sinusoidal relief profile is aluminium coated using a proprietary process to create the array of parallel conductors. This process is suitable for a wide range of infra-red materials, even those that do not lend themselves to the ruling process.

Holographic wire grid polarisers are available with a spacing of 2700g/mm for optimum short wavelength efficiency.

 

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