Corning Incorporated

Thomas Philip Seward, Iii

Nicholas Francis Borrelli

Joseph Francis Schroeder, Iii

George Halsey Beall

Natesan Venkataraman

David L Morse

Roger J Araujo

Joseph Michael Matusick

Nadja Teresia Lönnroth

Nakia Leigh Heffner

Ming-Jun Li

Charlene Marie Smith

Daniel Aloysius Nolan

Vitor Marino Schneider

Alexander Mikhailovich Streltsov

Robert Adam Modavis

David John McEnroe

Alranzo Boh Ruffin

Xiao Li

Photosensitive lithium zinc aluminosilicate glasses that can be selectively irradiated and cerammed to provide patterned regions of glass and lithium-based glass ceramic, and composite glass articles made from such glasses and glass ceramics are provided. The lithium zinc aluminosilicate glass can be negatively photosensitive or positively photosensitive to radiation having a wavelength in a range from about 248 nm to about 360 nm.

Photosensitive glasses and glass ceramics and composite glass materials made therefrom

An article includes an optical transforming layer and a guide region positioned inside and adjacent to at least a portion of a perimeter of the optical transforming layer. The guide region comprises an inlet end positioned adjacent to a first surface of the optical transforming layer and an outlet end positioned adjacent a second surface of the optical transforming layer. The guide region propagates light from the inlet end to the outlet end such that the light is directed from the first surface to the second surface. The guide region includes a phase-separated glass comprising a continuous network phase and a discontinuous phase. A relative difference in index of refraction between the continuous network phase and the discontinuous phase is greater than or equal to 0.3%. The discontinuous phase comprises elongated shaped regions aligned along a common axis and having an aspect ratio greater than or equal to 10:1.

Optical transforming article

Photosensitive lithium zinc aluminosilicate glasses that can be selectively irradiated and cerammed to provide patterned regions of glass and lithium-based glass ceramic, and composite glass articles made from such glasses and glass ceramics are provided. Compressive and tensile stress at the interface of the lithium-based glass-ceramic and lithium zinc aluminosilicate glass may be used to frustrate crack propagation in such a composite glass/glass ceramic article. Methods of making composite glass articles comprising such lithium-based glass ceramics and lithium zinc aluminosilicate glasses are also provided.

A photochromic glass that includes a base glass and a photochromic agent is described. The base glass is a modified boroaluminosilicate glass and the photochromic agent is a nanocrystalline cuprous halide phase. The photochromic glass exhibits a sharp cutoff in the UV or short wavelength visible portion of the spectrum along with an absorption band at longer wavelengths in the visible. The nanocrystalline cuprous halide phase includes Cu, which provides states within the bandgap of the cuprous halide that permit the glass to absorb visible light. Absorption of visible light drives a photochromic transition without compromising the sharp cutoff. The nanocrystalline cuprous halide phase may optionally include Ag.

Photochromic glass with sharp cutoff

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.

Broadband polarizer made using ion exchangable fusion drawn glass sheets

Broadband polarizer made using ion exchangeable fusion drawn glass sheets

The invention is directed to a glass composition and articles made from the composition that are both polarizing and photorefractive. The glass has, for example, a composition consisting essentially of, in weight percent ('wt. %') of 70-73 SiO, 13-17% BO, 8-10% NaO, 2-4% AlO, 0.005-0.1% CuO, &#x3c;0.4% Cl, 0.1-0.5% Ag, 0.1-0.3% Br. In another embodiment the composition consists essentially of 70-77% SiO, 13-18% BO, 8-10% NaO, 2-4% AlO, 0.005-0.1% CuO, &#x3c;0.4% Cl, 0.1-0.5% Ag, 0.1-0.3% Br. The glass can be used make articles or elements that can exhibits both the photorefractive effect and the polarizing effect within a single element or article, and can be used to make a variety of optical elements including Bragg gratings, filtering elements, and beam shaping elements and light collection elements for use in display, security, defense, metrology, imaging and communications applications.

Polarizing photorefractive glass

This invention relates to a method of rendering fused silica resistant to compaction caused by UV laser beam irradiation. The method of the invention results is a fused silica member that is desensitized to compaction caused by the long-term exposure to UV laser beams. The invention includes a means to pre-compact fused silica members using high energy radiation.

Fused silica having high resistance to optical damage

Fused silica stepper lens for photolithographic application are disclosed which are resistant to laser-induced damage, specifically, compaction or densification which can lead to an increase in the optical path length of the lens. The figure compares the phase front distortions of a standard fused silica with the phase front distortions observed in two inventive stepper lens fused silica.

Silica with low compaction under high energy irradiation

A method of rendering fused silica resistant to compaction caused by UV laser beam irradiation. The method of the invention results in a fused silica member that is desensitized to compaction caused by the long-term exposure to UV laser beams. The invention includes a means to pre-compact fused silica members using high energy radiation.

Production of fused silica having high resistance to optical damage

A birefringent waveplate is composed of an integral, transparent, glass body having a thermally developed dispersed phase therein composed of particles having a high aspect ratio and being oriented and aligned in one direction, whereby the glass body is rendered birefringent so that polarized components of light transmitted through the glass body have a phase shift introduced.

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Elmira, NY, United States of America

Thomas Philip Seward, Iii