USA As Represented by Secretary of the Navy

Sunlight Photonics Inc.

Other

University of California

Jesse A Frantz

Jasbinder Singh Sanghera

Jason D Myers

Ishwar Dayal Aggarwal

Robel Y Bekele

Christopher M Spillmann

Jakub Kolacz

Leslie Brandon Shaw

Vinh Q Nguyen

L Brandon Shaw

Colin C Baker

Lynda E Busse

Jawad Naciri

Woohong Kim

Henry G Gotjen

Sergey V Frolov

Allan James Bruce

Michael Cyrus

Rajratan Basu

Catalin M Florea

Daniel L Rhonehouse

Steven C Erwin

Daniel Kinnamon

Walter J Dressick

Guillermo R Villalobos

Bryan Sadowski

Menelaos K Poutous

Geoffrey Chin

Peter Alexander Morrison

Jason Auxier

Christopher John Bardeen

Shyam S Bayya

Banahalli R Ratna

Daniel Joseph Gibson

Rafael R Gattass

Steven R Bowman

Anthony Romano Clabeau

An antireflection optical element formed from an optical material. The optical material includes a first plurality of antireflective surface structures in the form of first protuberances from the optical material. The first plurality of antireflective surface structures are constructed to aid in transmission of a first wavelength range through the optical material. Also included are a second plurality of antireflective surface structures in the form second protuberances from the first plurality of antireflective surface structures. The second plurality of antireflective surface structures are constructed to aid in transmission a second wavelength range through the optical material. The first wavelength range comprises longer wavelengths than the second wavelength range.

Wideband antireflective surface structures for optics and methods of manufacturing the same

Tunable devices and methods for fine tuning the optical responses of thin film devices post fabrication are described. This approach modifies the refractive indices of the chalcogenide glass thin films incorporated into the devices, and using this change in the refractive indices to fine tune the optical responses of the devices. Thermal annealing may be used to modify the refractive index. Thermal annealing provides good uniformity in large-area devices and may be applied to multi-layer structures.

Thermally tuned optical devices containing chalcogenide thin films

Systems and methods are provided for a mechanical actuator based on a fiber optic platform. A material that is configured to be activated by light is incorporated into an optical fiber that serves as both an actuator and a power delivery network. This platform is adaptable to different materials, types of motions, and length scales and allows for precise delivery of photons to the material.

Optomechanical fiber actuator

This application relates generally to an optical fiber for the delivery of infrared light where the polarization state of the light entering the fiber is preserved upon exiting the fiber and the related methods for making thereof. The optical fiber has a wavelength between about 0.9 μm and 15 μm, comprises at least one infrared-transmitting glass, and has a polarization-maintaining (PM) transverse cross-sectional structure. The infrared-transmitting, polarization-maintaining (IR-PM) optical fiber has a birefringence greater than 10and has applications in dual-use technologies including laser power delivery, sensing and imaging.

Infrared-transmitting, polarization-maintaining optical fiber and method for making

Systems and methods are provided for a mechanical actuator based on a fiber optic platform. A material that is configured to be activated by light may be incorporated into an optical fiber that serves as both an actuator and a power delivery network. This platform is adaptable to different materials, types of motions, and length scales and allows for precise delivery of photons to the material.

A liquid crystal (LC) beam steerer includes a waveguide apparatus with a waveguide having a high-index core in contact with a variable-index liquid crystal (LC) cladding, wherein a voltage applied to the LC cladding is effective to steer a beam of light passing through the high-index core. Measuring the bulk birefringence and/or the capacitance characteristics of the LC can facilitate beam steering.

Bulk property feedback for liquid crystal-clad waveguides

A graphene and liquid crystal device comprising a substrate, a layer of graphene on the substrate, and a layer of liquid crystal on the layer of graphene. A graphene and liquid crystal device wherein the layer of graphene is an alignment layer and an electrode for a liquid crystal device.

Concurrent utilization of monolayer graphene as the planar-alignment layers and the transparent conductive electrodes in electro-optic liquid crystal devices

A composition of matter having a coated silicon substrate with multiple alternating layers of polydopamine and polyallylamine bound copper-indium-gallium oxide (CIGO) nanoparticles on the substrate. A related composition of matter having polyallylamine bound to CIGO nanoparticles to form PAH-coated CIGO nanoparticles. A related CIGO thin film made via conversion of layer-by-layer assembled CIGO nanoparticles and polyelectrolytes. CIGO nanoparticles are created via a flame-spray pyrolysis method using metal nitrate precursors, subsequently coated with polyallylamine (PAH), and dispersed in aqueous solution. Multilayer films are assembled by alternately dipping a substrate into a solution of either polydopamine or polystyrenesulfonate and then in the CIGO-PAH dispersion to fabricate CIGO films as thick as 1-2 microns.

Method for fabrication of copper-indium gallium oxide and chalcogenide thin films

The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a seed layer of material deposited on the surface of the optical element. The seed layer is removed during or after the etching, and serves to control etching time as well as the transmission region of the optical element having ARSS. Optical elements having ARSS on at least one surface are also provided.

Seed layer for fabrication of antireflective surface structures on optical elements

A liquid crystal-based non-mechanical beam steering device that permits steering in the mid-wave infrared and has a chalcogenide waveguide. The waveguide core, the subcladding, or both comprise a chalcogenide glass. The liquid crystal-based non-mechanical beam steering device has a tapered subcladding and a liquid crystal layer.

Chalcogenide glass waveguides for refractive non-mechanical beam steerer

Liquid crystal device employing graphene as the planar-alignment agent and electrode

The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a three-dimensional film layer applied to the surface of the optical element. The methods beneficially permit materials that do not exhibit local variation in physical and chemical properties to be provided with ARSS. Optical elements having ARSS on at least one surface are also provided.

Anti-reflective surface structures formed using three-dimensional etch mask

An optical system has a beam-steering device, a light source, and a controller that controls the light source to actively control wavelength of the incoming light to control the output angle of the outgoing light output from the BS device. The BS device may have incoupler, waveguide, and/or outcoupler electrodes, and the system may have corresponding controllable voltage supplies actively controlled by the controller to selectively modify electric fields applied to the BS device to control corresponding operating characteristics of the BS device (e.g., in-plane and/or out-of-plane output angles of the outgoing light and/or device incoupling angle). An alternative optical system has a BS device, a detector array that generates detector signals corresponding to outgoing light received from the BS device, and a controller that processes the detector signals to determine one or more wavelengths of the outgoing light.

Wavelength-based steering of non-mechanical beam-steering devices

A method for creating a random anti-reflective surface structure on an optical fiber including a holder configured to hold the optical fiber comprising a groove and a fiber connector, an adhesive material to hold the optical fiber in the holder and fill any gap between the optical fiber and the holder, a glass to cover the adhesive material and the optical fiber, and a reactive ion etch device. The reactive ion etch device comprises a plasma and is configured to expose an end face of the optical fiber to the plasma. The plasma is configured to etch a random anti-reflective surface structure on the end face of the optical fiber.

Antireflective surface structures for active and passive optical fiber

A system for transmitting power to a remote equipment, the system including a first laser source that generates a first laser beam; a first tracking device operatively connected to the first laser source, wherein the first tracking device controls a direction of the first laser beam; and a first photovoltaic device operatively connected to the remote equipment located remotely from the first laser source and the first tracking device, wherein the first photovoltaic device includes a semiconductor material that generates an electric current in response to absorbing the first laser beam, and wherein a first wavelength of the first laser beam is within an eye-safer range.

Growing community of inventors

Washington, DC, United States of America

Jesse A Frantz