Broadband polarizer made using ion exchangable fusion drawn glass sheets
AssigneeCorning Incorporated
InventorsNicholas Francis Borrelli, Nakia Leigh Heffner, Joseph Michael Matusick, Joseph Francis Schroeder, III, Thomas Philip Seward, III, Natesan Venkataraman
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Abstract
The disclosure is directed to broadband, glass optical polarizers and to methods for making the glass optical polarizers. The glass optical polarizer includes a substantially bubble free fusion drawn glass having two pristine glass surfaces and a plurality of elongated zero valent metallic particle polarizing layers.
Claims18
A glass optical polarizer comprising a substantially bubble free fusion drawn glass comprising two pristine glass surfaces and a plurality of polarizing layers comprising elongated metallic particles, wherein the polarizer has a contrast ratio of at least about 20 dB and a % transmission of at least about 75% over a wavelength range of about 900 nm to about 2,000 nm.
A glass optical polarizer comprising a substantially bubble free fusion drawn glass comprising two pristine glass surfaces and a plurality of polarizing layers comprising elongated metallic particles, wherein each of the polarizing layers has a thickness of about 0.2 μm to about 0.5 μm, and wherein each of the polarizing layers are situated within about 1.0 μm to about 2.0 μm of at least one of the pristine glass surfaces.
A glass optical polarizer comprising a substantially bubble free fusion drawn glass comprising two pristine glass surfaces and a plurality of polarizing layers comprising elongated metallic particles, wherein the fusion drawn glass comprises about 60 mol % to about 70 mol % SiO2, about 13 mol % to about 15 mol % Na2O, about 7.0 mol % to about 15 mol % Al2O3, less than about 8.0 mol % B2O3, less than about 8.0 mol % MgO, less than about 2.0 mol % K2O, less than about 1.0 mol % CaO and less than about 0.5 mol % SnO2.
Dependencies are inferred from the claim text.