Dispersion prisms

Dispersion Prisms are most commonly used for wavelength separation. The Equilateral Prisms listed are supplied in three types of material, UV fused silica for use in the ultraviolet and infrared (170-2500), and flint glasses for visible spectrums. The Equilateral Prisms listed are uncoated. Surface reflection losses may affect throughput, therefore a range of antireflective coatings can be applied at short notice (see coatings section).

The Pellin-Broca “constant-deviation” Prism, also manufactured in UV fusd silica, is used as a monochromator and laser-line selector. Pellin-Broca Prisms output is always taken at 90º to the input. The wavelength transmitted varies as the prism is rotated. The Pellin-Broca Prism operates at Brewster’s angle for 240nm and has very high transmittance (p-polarisation) throughout the spectrum.

Specific requirements
We can manufacture Dispersion Prisms to any size at short notice so if your requirements are not listed please contact us by telephone/ fax or email: stockrequirement@knightoptical.co.uk

Options available
  · AR coating (see coatings)
  · Mirror Coating (see coatings)

See also
Diffraction Gratings