High efficiency polarizing beamsplitter

Details High efficiency polarizing beamsplitter High efficiency polarizing beamsplitter

1981-10-05

1985-03-12

Arnold, Bruce Y.

350170, 350173, G02B 2710

Patent

active

045041237

ABSTRACT:
A high contrast Brewster angle polarizing beamsplitter in which splitting occurs on the internal surface of a dielectric material having a higher-refractive-index than the surrounding medium. The Brewster angle resulting from the incidence of electromagnetic radiation on the dielectric interface of the higher-refractive-index material to the lower-refractive-index medium is smaller than the one attained when using the external surface and thus results in a more compact beamsplitter configuration. A beamsplitter structure is also provided for obtaining one of the transmitted components that is collinear with the original beam.

REFERENCES:
patent: Re30513 (1981-02-01), Bleukens et al.
patent: 3711791 (1973-01-01), Erickson
patent: 3934210 (1976-01-01), Yarborough et al.
patent: 3982203 (1976-09-01), de Wit
patent: 3983507 (1976-09-01), Tang et al.
patent: 4006426 (1977-02-01), Lacour
patent: 4025194 (1977-05-01), Teppo
Jenkins et al., Fundamentals of Optics, p. 491, Third Ed., McGraw-Hill, 1957.

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