Universal broadband polarizer, devices incorporating same,...

Details Universal broadband polarizer, devices incorporating same,... Universal broadband polarizer, devices incorporating same,...

2007-09-11

2007-09-11

Lavarias, Arnel (Department: 2872)

Optical: systems and elements

Diffraction

From grating

C359S486010

Reexamination Certificate

active

10775356

ABSTRACT:
A polarization dependent device suitable for effecting at least one polarization of a broadband portion of electromagnetic radiation incident upon the device is disclosed. This device includes a substrate, and a plurality of regions of differing refractive indices positioned in an alternating manner and substantially adjacent to the substrate to effect the at least one polarization impinging on the regions. The plurality of regions are oriented with respect to the at least one polarization of the broadband portion of the electromagnetic radiation so as to effect the at least one polarization of the broadband portion of the electromagnetic radiation impinging on the regions.

REFERENCES:
patent: 5245471 (1993-09-01), Iwatsuka et al.
patent: 6288840 (2001-09-01), Perkins et al.
patent: 6813077 (2004-11-01), Borrelli et al.
patent: 2004/0125449 (2004-07-01), Sales
Robert Guenther, Modern Optics, 1990, John Wiley and Sons Inc, pp. 524-525.

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