The University of Arizona

Corning Incorporated

Photon-X, Inc.

Canon Kabushiki Kaisha

E.i. Dupont De Nemours and Company

Other

Honeywell International Inc.

Clariant Finance (Bvi) Limited

Robert Andrew Norwood

Nasser N Peyghambarian

Roland Himmelhuber

Louay A Eldada

Stanley K H Pau

Robert M Blomquist

Dong-Chul Pyun

Thomas L Koch

Palash Gangopadhyay

Linan Jiang

Tristan Stephen Kleine

Anthony F Garito

Christopher Todd DeRose

Jun Kato

Baopei Xu

Laura E Anderson

Liliana Ruiz Diaz

Mamoru Miyawaki

Lawrence W Shacklette

Renyuan Gao

Richard S Glass

Russell Witte

Kazuya Takayama

Ragnar Olafsson

Anna Panackal

Dong-Chul “Jeffrey” Pyun

Soha Namnabat

Donald S Bitting

Kyung-Jo Kim

Leonardo Gabriel Montilla

Charles M Ingram

Zhaohui Wang

Charles Greenlee

Alexander Ashton Miles

Jason Holman

Alejandra Lopez-Santiago

Jared J Griebel

Ralph R Dammel

Terje A Skotheim

Douglas A Loy

Chia-Chi Teng

Jayan Thomas

Khanh Kieu

Stephen M Emo

Pierre-Alexandre Jean Blanche

Xiushan Zhu

Yasufumi Enami

Erfan M Fard

Kyle Carothers

Nicholas George Pavlopoulos

Sifang Cui

Akram A Khosroabadi

Abhinav Nishant

Savas Tay

Robert M Mininni

Shing Yin

Cathy Glass

Louay Eidada

Brian Brown

Shabnam Virji

Meade H Rudasill

Tobias Kochenderfer

Shabnam Virji-Khalfan

David H Sossen

Woo Jin Chung

Julie Ilana Frish

Adam G Simmonds

Kyungjo Kim

Nicholas Lyons

Lindsey Holmen

The present invention is directed to refractive index contrast ('RIC') polymers and methods for producing and using the same. In one particular embodiment, RIC polymers of the invention can be used as waveguides. RIC polymers of the invention are produced from a monomeric mixture comprising a first monomer and a second monomer comprising an acid-labile protecting group, where a first polymer produced from the first monomer has a different refractive index compared to the refractive index of a second polymer produced from the second monomer. The base refractive index of RIC polymers can be tuned by controlling the amount of the first and the second monomers. Furthermore, the refractive index of the waveguide can be modulated by the amount of acid-labile protecting group removal.

Refractive index contrast polymers and methods for producing and using the same

The present invention provides a composition comprising a plurality of magnetic nanocomposite particles. The magnetic nanocomposite particle comprises a magnetic metallic nanoparticle and a plurality of organic polymer ligands attached to its surface. The composition can also include a host matrix, such as a polymer, in which the magnetic nanocomposite particles are interspersed therein. The compositions of the invention have the Verdet constant of at least 5000°/T-m.

High verdet constant nanoparticles and methods for producing and using the same

The present invention provides certain CHIP films and coatings, as well as the preparation and uses thereof. Chalcogenide hybrid organic/inorganic polymers or CHIPs may be suitable for use in antireflection coatings for use with infrared optics, for example as applied to lenses for infrared cameras. The coatings may be applied with spin coating and have a thickness related to the quarter wavelength of the desired infrared wavelengths.

Chalcogenide hybrid organic/inorganic polymers films and coatings and the use thereof

The present invention provides certain polymeric materials, precursors thereof as well as the preparation and uses thereof.

Chalcogenide hybrid inorganic/organic polymers (CHIPS) for infrared optical materials and devices

A method of forming an optical interconnect between first and second photonic chips located on an optical printed circuit board (OPCB) includes applying a coupling agent to a bonding surface of a flexible, freestanding polymer waveguide array film having at least one polymer waveguide disposed therein. The waveguide array film is placed onto the first and second photonic chips so that the waveguide array film extends over a gap and/or a step between the first and second photonic chips to thereby form a bonding interface between the bonding surface of the waveguide array film and the first and second photonic chips. The coupling agent is selected such that optical coupling between the first and second photonic chips arises simultaneously with formation of the bonding interface.

Assembly of flexible optical waveguides and photonic chips for optical interconnection packaging

A method for establishing optical coupling between spatially separated first and second planar waveguides includes arranging an optical interconnect on the first planar waveguide. The optical interconnect has first and second end portions and an intermediate portion. Each of the end portions has an inverse taper. The second planar waveguide is arranged on the optical interconnect so that the second planar waveguide overlaps with one of the inverse tapered end portions but not the other inverse tapered end portion to thereby enable an adiabatic transition of an optical signal from the first planar waveguide to the second planar waveguide via the optical interconnect. The first and second planar waveguides have different refractive indices at an operating wavelength and the optical interconnect have a higher refractive index at the operating wavelength than the refractive indices of a core of the first planar waveguide and a core of the second planar waveguide.

Chip-to-chip optical interconnection using high refractive index couplers

Linear acylindrical lens (and array/system employing a plurality of such lens elements) containing liquid silicone rubber material for use in solar applications, as well as a low-cost silicone based optical lightguide(s) configured to channel and concentrate solar light with about 90% optical efficiency. The lens includes a transparent glass substrate (with an optional coating), which mechanically supports a moldable flexible silicone lenslet optical quality and is bonded to it with the use of plasma and in absence of adhesive material. When injection molding of lightguide(s) is employed, the lightguide shape can be formed variably to provide for integration of multiple lightguide s into an array with alignment tolerances that are looser than in a solar concentrator employing glass waveguides. Optical system employing such (arrayed) linear lens(es) concatenated with corresponding (arrayed) lightguides, juxtaposed with micro-CPV cells and conventional PV-cell(s) to capture diffused light.

Systems for radiative power concentration

Chalcogenide hybrid inorganic/organic polymers (CHIPs) for infrared optical materials and devices

In accordance with a method of forming a waveguide in a polymer film disposed on a substrate, a plurality of regions on a polymer film are selectively exposed to a first dosage of radiation. The polymer film is formed from a material having a refractive index that decreases by exposure to the radiation and subsequent heating. At least one region of the polymer film that was not previously exposed to the radiation is selectively exposing to a second dosage of radiation. The second dosage of radiation is less than the first dosage of radiation. The polymer film is heated to complete curing of the polymer film.

High-throughput manufacturing of photonic integrated circuit (PIC) waveguides using multiple exposures

A method of fabricating an optical connection to at least one planar optical waveguide integrated on a planar integrated circuit (PIC) uses a machine vision system or the like to detect one or more positions at which one or more optical connections are to be made to at least one planar optical waveguide located on the PIC. A spatial light modulator (SLM) is used as a programmable photolithographic mask through which the optical connections are written in a volume of photosensitive material using a photolithographic process. The SLM is programmed to expose the photosensitive material to an illumination pattern that defines the optical connections. The programming is based at least in part on the positions that have been detected by the vision system. The optical connections are printed by exposing the photosensitive material to illumination that is modulated by the pattern with which the SLM is programmed.

Fabrication of optical interconnect structures for a photonic integrated circuit

A flexible polymer waveguide array structure serves as a stitch or jumper on an optical printed circuit board (OPCB). The flexible polymer waveguide array structure can be attached to the OPCB so that it can provide a chip-to-OPCB optical connection. The waveguide(s) in the flexible polymer waveguide array structure may be prefabricated before the flexible polymer waveguide array structure is attached to the OPCB. Alternatively, the waveguides may be fabricated after the flexible polymer waveguide array structure has been attached to the OPCB. The waveguide(s) may be subsequently formed using a printing process such as photolithography. As a consequence of forming the waveguide(s) after attachment of the flexible polymer waveguide array to the OPCB, the precision in the lateral alignment that is required when placing the flexible polymer waveguide array structure on the OPCB is generally significantly less than is required when the waveguide(s) are prefabricated.

Optical printed circuit board with polymer array stitch

A method of forming an optical interconnect between first and second photonic chips located on an optical printed circuit board includes applying a flexible, freestanding film onto the first and second chips so that the film extends over a gap and/or step between the chips. The film includes a photosensitive layer having a refractive index that decreases by exposure to radiation and a backing layer. The film is exposed to a flood exposure having a radiation dosage penetrating the backing layer and only a surface sublayer of the photosensitive layer. After curing the film, the backing layer is removed so that the photosensitive layer remains on the first and second chips. The photosensitive layer is selectively exposed to a second radiation dosage to define waveguide core(s) in unexposed regions of the photosensitive layer below the surface sublayer. The photosensitive layer is heated to cure the selectively exposed portions.

Fabrication of polymer waveguide interconnect between chips with a gap and/or step

An athermal optical waveguide structure such as an optical add drop multiplexer (OADM) or the like is fabricated by a method that includes forming a lower cladding layer on a substrate. A waveguiding core layer is formed on the lower cladding layer. An upper cladding layer is formed on the waveguiding core layer and the lower cladding layer a sol-gel material. The sol-gel material includes an organically modified siloxane and a metal oxide. A thermo-optic coefficient of the sol-gel material is adjusted by curing the sol-gel material for a selected duration of time at a selected temperature such that the thermo-optic coefficient of the sol-gel material compensates for a thermo-optic coefficient of at least the waveguiding core layer such that an effective thermo-optic coefficient of the optical waveguide structure at a specified optical wavelength and over a specified temperature range is reduced.

Athermal silicon optical add-drop multiplexers based on thermo-optic coefficient tuning of sol-gel material

Copolymerization of elemental sulfur with functional comonomers afford sulfur copolymers having a high molecular weight and high sulfur content. Nucleophilic activators initiate sulfur polymerizations at relative lower temperatures and in solutions, which enable the use of a wider range of comonomers, such as vinylics, styrenics, and non-homopolymerizing comonomers. Nucleophilic activators promote ring-opening reactions to generate linear polysulfide intermediates that copolymerize with comonomers. Dynamic sulfur-sulfur bonds enable re-processing or melt processing of the sulfur polymer. Chalcogenide-based copolymers have a refractive index of about 1.7-2.6 at a wavelength in a range of about 5000 nm-8&#x3bc;&#x3b9;&#x3c4;&#x3b9;. The sulfur copolymer can be a thermoplastic or a thermoset for use in elastomers, resins, lubricants, coatings, antioxidants, cathode materials for electrochemical cells, dental adhesives/restorations, and polymeric articles such as polymeric films and free-standing substrates. Optical substrates are constructed from the chalcogenide copolymer and are substantially transparent in the visible and infrared spectrum.

Copolymerization of elemental sulfur to synthesize high sulfur content polymeric materials

Devices are disclosed for obtaining data of a sample, particularly data capable of being processed to produce an image of a region of the sample. An exemplary device includes a light-beam source, an acoustic-wave source, an optical element, and an acoustic detector. The optical element is transmissive to a light beam produced by the light-beam source and reflective to acoustic waves produced by the acoustic-wave source. The optical element is situated to direct the transmitted light beam and reflected acoustic wave simultaneously along an optical axis to be incident at a situs in or on a sample to cause the sample to produce acoustic echoes from the incident acoustic waves while also producing photoacoustic waves from the incident light beam photoacoustically interacting with the situs. The acoustic detector is placed to receive and detect the acoustic echoes and the photoacoustic waves from the situs. The acoustic detector can comprise one or more hydrophones exploiting the acousto-electric effect.

Ultrasonic/photoacoustic imaging devices and methods

Growing community of inventors

Tucson, AZ, United States of America

Robert Andrew Norwood