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01622 859444
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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.

Knight Optical > Prisms > Dispersing prisms - Equilateral Type

Only UK and EU customers are charged VAT at 17.5%, customers outside the EU and EU customers based outside the UK who have a valid EU VAT number will not be charged VAT

Bulk Discounts!
Where (B) appears next to a price below, bulk prices are available, click the (B) button to view!


PDFPart No.MaterialndvdAperture (mm) width x height prismsPriceQtyBuy
PEF1515
UV-fused silica
1.458
67.7
15 x 15
£57.00

PEF2525
UV-fused silica
1.458
67.7
25 x 25
£65.00

PEF4040
UV-fused silica
1.458
67.7
40 x 40
£95.00

PES1515
SF11
1.785
25.8
15 x 15 (AR on 3 faces, MgF2@550nm)
£30.00

PES2020
SF11
1.785
25.8
20 x 20 (AR on 3 faces, MgF2@550nm)
£33.00

PEG2525
F2
1.62
36.4
25 x 25 (AR on 3 faces, MgF2@550nm)
£36.00

PES3535
N-SF11
1.785
25.8
35 x 35 (No coating )
£38.00

PEG4040
F2
1.62
36.4
40 x 40 (AR on 3 faces, MgF2@550nm)
£48.00

PEG6060
F2
1.62
36.4
60 x 60 (AR on 3 faces, MgF2@550nm)
£78.00

Knight Optical > Prisms > Dispersing prisms - Equilateral Type

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
   
 
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      Knight Optical (UK) Ltd
      Templetree House, Sandway Road, Harrietsham, Kent ME17 1HT. United Kingdom.
      Phone: +44 (0)1622 859444   Fax: +44 (0)1622 859555
      e-mail: info@knightoptical.co.uk   Web design by Smart ePos