Study of the injection molding of a polarizing beam splitter

Study of the injection molding of a polarizing beam splitter

We describe the replication of a relief grating that behaves like a polarizing beam splitter by injection molding. Measurements of the grating master, nickel shim, and replica, performed by atomic force microscopy, allow establishing a limit for the injection molding technique (currently used in CD...

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Veröffentlicht in:Applied Optics 2006-01, Vol.45 (1), p.100-103
Hauptverfasser: Jose de Carvalho, Edson, Braga, Edmundo da Silva, Cescato, Lucila H
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container_title Applied Optics
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creator Jose de Carvalho, Edson
Braga, Edmundo da Silva
Cescato, Lucila H
description We describe the replication of a relief grating that behaves like a polarizing beam splitter by injection molding. Measurements of the grating master, nickel shim, and replica, performed by atomic force microscopy, allow establishing a limit for the injection molding technique (currently used in CD fabrication) to aspect ratios of approximately 0.15. Although this limit strongly reduces the diffraction efficiency of the elements as well as their polarizing properties, extinction ratios of approximately 10:1 were measured for the replicas in a large range of wavelengths.
doi_str_mv 10.1364/AO.45.000100
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title Study of the injection molding of a polarizing beam splitter
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