Anti-Reflection – Standard Stamp
NIL Technology offers a wide range of standard stamps with Anti-Reflection (AR) structures. The AR Standard Stamp portfolio contains stamps for making AR structures for both AR in the visible range, as well as in the near infrared range. The standard stamps are offered in different size formats. All stamps can be supplied in larger sizes upon request and in special formats of laser cut from the formats specified below.
The AR structures are based on the moth-eye design, the best of which can reduce the reflectivity from a PMMA surface to below 0.2% in the visible and near infrared range.
The AR standard stamps can be delivered with or without anti-sticking coating.
Note that the AR standard stamps are only for test and product development purposes. A commercial use of the AR standard stamp structures requires a royalty agreement
Specifications for AR stamps for the visible range
|Specifications||Type B||Type A||Type C|
|Grating type||Hexagonal Array||Hexagonal Array||Hexagonal Array|
|Pitch||300 nm||250 nm||250 nm|
|Average height||300 nm||350 nm||350 nm|
|Stamp thickness||300 µm||300 µm||300 µm|
|Stamp size||70 mm x 70 mm||120 mm x 120 mm||250 mm x 250 mm|
|Active area||50 mm x 50 mm||100 mm x 100 mm||200 mm x 200 mm|
|Expected %R PMMA||Less than 0.6%||Less than 0.2%||Less than 0.2%|
Specifications for AR stamp for the near infrared range
|Grating type||Hexagonal Array|
|Average height||Larger than 700 nm|
|Stamp thickness||300 µm|
|Stamp size||100 mm x 100 mm|
|Active area||80 mm x 80 mm|
|Expected %R acrylic polymer @ 900 nm|
Expected %R acrylic polymer @ 1500 nm
|Less than 0.2%|
Less than 0.3%