Concave Diffraction Gratings by High-Precision Injection Moulding

As an example of the applicable process chain, a concave grating (1175 grooves/mm) with an active area of approx. 24 mm to 24 mm has been replicated by means of electroplating and further by injection moulding with polycarbonate, resulting in a surface accuracy even below 4 µm peak-to-valley (PV). T...

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Bibliographic Details
Main Authors: Manuel Walch, Alexander Wörle
Format: Article
Language:English
Published: MDPI AG 2019-04-01
Series:Proceedings
Subjects:
Online Access:https://www.mdpi.com/2504-3900/2/13/717