Fabrication of Diffractive Patterns on Aspheric Mirror Substrates

This technology is a novel way of printing diffractive pupils through a means of maskless lithography on any surface.

Background:
Currently, the fabrication of diffractive pupils is limited to planar surfaces because there are many issues and restrictions with printing diffractive pupils on aspheric mirror surfaces. Printing diffractive structures on a spherical mirror is an inconvenient method currently and causes asymmetric distortion in telescopes.

Applications:

• Printing of diffractive pupils
• Clearer imaging
• Precision and accuracy of exoplanets

Advantages:

• Not limited to binary structures, rotational or planar surfaces
• Reduces cost and weight
• Expands the field-of-view
• Occurrence of asymmetric pupils become impossible
• Reduces asymmetric distortion