Beamsplitters

Some typical beamsplitter types are shown. Dielectric beamsplitters are most efficient with lower absorption losses but generally exhibit color preference.

Metal beamsplitters are almost perfectly neutral on the other hand but are not energy efficient. (lower curves) Either type can be had in almost any reflection/transmission ratio. 1:1, 2:1, etc. Metal beamsplitters are non-polarizing.

33/67 Dielectric beam
splitter 45°
incidence

 

50/50 Dielectric beamsplitter 45° incidence

 

70/30 Dielectric beam splitter 45° incidence

 

Metal beamsplitters are almost perfectly neutral on the other hand but are not energy efficient. (lower curves) Either type can be had in almost any reflection/ transmission ratio. 1:1, 2:1, etc. Metal beam splitters are non-polarizing.





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