Moxtek, Inc.

Moxek, Inc.

Shaun Patrick Ogden

R Stewart Nielson

Brian Bowers

Bradley R Williams

Hua Li

Bin Wang

Anubhav Diwan

Matthew C George

Eric W Gardner

Bob West

Liang Gao

Steven D Liddiard

Erik C Bard

Charles R Jensen

Fred Lane

Mathew Free

Matt Free

David Vern Nelson

Matthew R Linford

Ted Wangensteen

David S Crawford

Arturo Reyes

Bradley R Willliams

Kerry Olivier

A metasurface optical device can include an array of pillarson a first-sideof a substratealigned with an apertureof, or proximate to, a blocking-layer. The blocking-layercan located on the first-sideof the substrate, on a second-sideof the substrateopposite of the first-side, or both. The blocking-layercan prevent light from transmitting through the device in undesirable locations. The blocking-layercan be opaque to incident light and can include an absorptive-layer. Thus, the blocking-layercan have dual functions—blocking and absorbing light.

Metasurface with an absorptive aperture border

A method of making a polarizer can include applying a liquid with solid inorganic nanoparticles dispersed throughout a continuous phase, then forming this into a different phase including a solid, interconnecting network of the inorganic nanoparticles. This method can improve manufacturability and reducing manufacturing cost. This method can be used to provide an antireflective coating, to provide a protective coating on polarization structures, to provide thin films for optical properties, or to form the polarization structures themselves.

Polarizer nanoimprint lithography

A method for making a wire grid polarizer (WGP) can provide WGPs with high temperature resistance, robust wires, oxidation resistance, and corrosion protection. In one embodiment, the method can comprise: (a) providing an array of wires on a bottom protection layer; (b) applying a top protection layer on the wires, spanning channels between wires; then (c) applying an upper barrier-layer on the top protection layer and into the channels through permeable junctions in the top protection layer. In a variation of this embodiment, the method can further comprise applying a lower barrier-layer before applying the top protection layer. In another variation, the bottom protection layer and the top protection layer can include aluminum oxide. In another embodiment, the method can comprise applying on the WGP an amino phosphonate then a hydrophobic chemical.

Durable, high performance wire grid polarizer having barrier layer

Polarizing optical devices described herein, and polarizing optical devices resulting from methods described herein, can be small and can have high heat tolerance. Wires of wire grid polarizers can be attached directly to prisms of the polarizing optical devices, allowing for small size. Multiple polarizing optical devices can be attached by adhesive-free bonding techniques, allowing high heat tolerance.

Miniature, durable polarization devices

Durable, high performance wire grid polarizer

A cube wire grid polarizer or an embedded wire grid polarizer can include an adhesive-free, direct bond between the wire grid polarizer and piece(s) of glass. Consequently, index of refraction mismatch can be avoided and the polarizer can have improved high temperature tolerance. The polarizer can include multiple layers over the wire grid polarizer, with the top of these layers polished, then directly bonded to the piece of glass. Material of the top layer can be selected such that thickness of this layer is not critical, thus allowing polishing.

Adhesive-free polarizer

A wire grid polarizer (WGP) can include a heat-dissipation layer. The heat-dissipation layer can enable the WGP to be able to endure high temperatures. The heat-dissipation layer can be located (a) over an array of wires and farther from a transparent substrate than the array of wires; or (b) between the array of wires and the transparent substrate. The heat-dissipation layer can be a continuous layer. The heat-dissipation layer can have a high electrical resistivity and a high coefficient of thermal conductivity.

Wire grid polarizer heat sink having specified reflective layer, absorptive layer, and heat-dissipation layer

A wire grid polarizer and method of making a wire grid polarizer can protect delicate wires of the wire grid polarizer from damage. The wire grid polarizer can include a protective-layer located on an array of wires. The array of wires can further be protected by a chemical coating on an inside surface of the air-filled channels, closed ends of the air-filled channels, damaged wires of the array of wires in a line parallel to an edge of the wire grid polarizer, or combinations thereof. The method can include (i) providing the wire grid polarizer, (ii) applying the protective-layer, by physical vapor deposition or chemical vapor deposition but excluding atomic layer deposition, onto the array of wires, (iii) cutting the wire grid polarizer wafer into multiple wire grid polarizer parts, then (iv) protecting the array of wires.

Wire grid polarizer with protected wires

Durable, high performance wire grid polarizer having permeable junction between top protection layer

A cube polarizing beam splitter (PBS) can have one or more of the following characteristics: high contrast (Tp/Ts), acceptance of a large range of incident angles, broadband, and symmetry. The cube PBS can include a pair of wire-grid polarizers sandwiched between a first prism and a second prism. There can be a boundary layer between the wire-grid polarizers. An optical path length of a transmitted beam can be equal or very close to an optical path length of a reflected beam.

Symmetric cube polarizing beam splitter

A wire grid polarizer (WGP) can have improved performance due to a high aspect ratio (e.g. &#x3e;3, &#x3e;5, &#x3e;10, &#x3e;15, &#x3e;20, or &#x3e;30), where aspect ratio equals T/W, T is a sum of a thickness of wires of the first arrayplus a thickness of wires of the second array(i.e. T=Th+Th), and W is a maximum width of wires of the first arrayand/or of the second arraySuch high aspect ratio can be achieved with two arrays of wiresandeach capped by a thin filmand

Multiple-stack wire grid polarizer

A wire grid polarizer (WGP)can include a reflective layersandwiched on each side by a pair of transparent layers (-and-). An index of refraction of each outer transparent layerorcan be greater than an index of refraction of the adjacent inner transparent layeror, respectively. Material composition of the outer transparent layersandcan be the same, material composition of the adjacent inner transparent layersandcan be the same. There can be high reflection of one polarization (e.g. Rs1&#x3e;93% and Rs2&#x3e;93%) for light incident on either side of the WGP.

Growing community of inventors

Saratoga Springs, UT, United States of America

Shaun Patrick Ogden