Special request

Newport is pleased to discuss special and unusual applications that are not addressed by our catalog items.

Special sizes and materials
In the Product Tables, we have listed the gratings and substrate sizes most frequently used, but you are not restricted to these sizes or materials. Gratings on special substrate sizes or materials are available upon request.

Special coatings
All reflectance gratings listed in the Product Tables are priced to include a standard aluminum (Al) reflectance coating. Gratings can also be replicated in gold (Au), or overcoated with magnesium fluoride (MgF₂), silicon dioxide (SiO₂) or protected silver (Ag) to enhance reflectivity in certain spectral regions.

Custom master gratings
In some instances, none of the hundreds of master gratings we have in stock meet specifications, so a new master may be required. Newport is capable of producing custom-designed ruled and holographic master gratings. Please contact us to discuss your application and specifications.

Catalog numbers for custom masters are given below.

35-97-01	Master ruling fee for ruled masters, plano or concave, other than echelles
35-97-02	Master ruling fee for ruled echelle masters
35-97-03	Master recording fee for plano holographic masters
35-97-04	Master recording fee for concave holographic masters
35-97-99	Master fee (other)

Our ruling engines and holographic recording chambers can produce master gratings to meet a wide range of specifications. If you do not see a grating in this catalog that meets your requirements, please contact us to discuss a custom master grating.