USA As Represented by Secretary of the Navy

Geo-centers, Inc.

Jawad Naciri

Banahalli R Ratna

Brett D Martin

Christopher M Spillmann

Jeffrey R Deschamps

Scott A Trammell

Jesse A Frantz

Jason D Myers

Robel Y Bekele

Jakub Kolacz

Jasbinder Singh Sanghera

Henry G Gotjen

Paul T Charles

Jake Fontana

Ian D Giles

Jeffrey C DePriest

Jeffrey C Depriest

Hong Guk Jeon

Leslie Brandon Shaw

Patrick N Keller

L Brandon Shaw

Ranganathan Shashidhar

Jason Auxier

David A Cylinder

Jing C Zhou

Joel M Schnur

George P Anderson

Michael A Markowitz

Alberto Piqué

Steven R Flom

Thomas L Fare

Nicholas A Charipar

Martin H Moore

Jonathan Selinger

Gregory P Crawford

Sebastian Pfeiffer

Gusphyl Justin

This disclosure concerns electrically conducting poly(pyrazoles). The concept of oligomerizing and polymerizing substituted aminopyrazole derivatives combined with a monomer activation procedure involving base-mediated conversion of the protonated pyrazole ring nitrogen to amine salt was developed. This disclosure concerns the specific chemistries needed for the synthesis of a pyrazole monomer used in the polymer synthesis. The procedure used for blending the novel polypyrazoles with other compounds needed for construction of solar cells for testing was developed. This disclosure concerns the concept of using these types of heteroatom-rich, electron-deficient oligomers or polymers as n-dopable or p-dopable electron acceptors in photovoltaic cells. This disclosure concerns synthesizing the starting monomer compounds and polypyrazoles.

Electrically conducting poly(pyrazoles)

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

An interpenetrating network (IPN) polymer membrane material includes a soft polyurethane interspersed with a crosslinked conducting polymer. The material can be reversibly 'switched' between its oxidized and reduced states by the application of a small voltage, &#x2dc;1 to 4 volts, thus modulating its diffusivity.

Fabrics with interpenetrating polymer networks of breathable elastomeric composites for nanoscale diffusion control and protection

Modulating fabric diffusivity using tether-containing conducting polymers

An apparatus having: a vessel for containing a suspension of a liquid and solid particles; a tube having a narrowed portion to draw the suspension from the vessel into the tube when a gas flows through the tube; an aerosol generator coupled to the tube for forming an aerosol from the suspension; a dehydrator coupled to the aerosol generator for removing the liquid from the aerosol forming a dried aerosol; a multiple-pass spectroscopic absorption cell coupled to the dehydrator to pass the dried aerosol into the absorption cell; and a Fourier transform spectrometer coupled to the absorption cell to measure an absorption spectrum of the dried aerosol.

Apparatus for generating and optically characterizing an aerosol

Breathable elastomeric composites with tether-containing conducting polymers for nanoscale diffusion control and protection

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

An electrically conducting organic oligomer made from the steps of preparing an acidic aqueous solution with a monomer; preparing the acidic aqueous solution by mixing a solution of about 1.6 wt % HCl in DI water with a monomer; forming about a 0.3 M solution preparing a second aqueous solution with a sodium persulfate oxidant; mixing the acidic aqueous solution with the second aqueous solution; and allowing a reaction to proceed at about 40&#xb0; C.

Electrically conducting oligo(pyrazoles)

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 making a chalcogenide glass waveguide in a liquid crystal-based non-mechanical beam steering device that permits steering in the mid-wave infrared. The waveguide core, the subcladding, or both comprise a chalcogenide glass. A mask is used to produce a tapered subcladding. Also disclosed is the related non-mechanical beam steering device that includes a chalcogenide waveguide.

Metallic nanorods are welded together in a controllable fashion. A suspension of metallic nanorods coated with an anionic polymer is contracted with linking molecules each comprising a liquid crystal with at least two available carboxylic acid moieties. The nanoparticles to self-assemble into dimers. Irradiation of the dimers with femtosecond radiation forms a metallic junction between them and welds the dimers into fused dimers.

Programmable assembly and welding of metallic nanoparticles into discrete nanostructures

An optical system has a beam-steering device having a planar waveguide region between a tapered incoupler and a tapered outcoupler that respectively define opposing incoupler and outcoupler facets of the BS device. Each region has a substrate, a subcladding layer over the substrate, a core layer over the subcladding, and a top cladding layer over the core. Within the incoupler, at least one of the subcladding and the top cladding has a material having a refractive index that varies with an applied field (e.g., an electric field) applied at the incoupler. The optical system also has a field-applying device that applies the applied field at the incoupler, an output detector that generates a feedback signal based on detected outgoing light output from the outcoupler, and a controller that controls the field-applying device based on the feedback signal to alter the light output from the outcoupler.

Technique for dynamically controlling the incoupler of a beam-steering device

Growing community of inventors

Arlington, VA, United States of America

Jawad Naciri