Available Technologies (through the UA Office of Technology Transfer)

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Fabrication of Polymer Waveguide Interconnect Between Chips With a Gap/Step Using Flexible Polymer Dry Film Resist for Photonic Integrated Circuits (Pics)

Thu, 2018-11-29 17:43
ua18-107 - Title: Fabrication Of Polymer Waveguide Interconnect Between Chips With A Gap And/Or Step   Invention: This technology describes a new method to form a stable physical barrier between chips within a photonic integrated circuit (PIC), utilizing polymer dry film negative resist. The technique enables the  fabrication of polymer waveguide interconnects.   Background: The current standard of applying polymer dry film resists works well for a single chip However, when there is a gap or step between two chips, the resist can break at the gap/step upon removing the backing.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Integrated Optical I/O Port Combiner

Thu, 2018-11-29 17:43
ua18-206 - Title:  Integrated Optical I/O Port Combiner   Invention:  Researchers at the University of Arizona have designed a polarization splitter rotator (PSR) that enables use of a single optical port for input and output signals simultaneously.  This allows the output ports to connect to a wider variety of components and frees up other I/O ports for additional functions, or reduces the number of optical I/O ports required on a photonic integrated circuit.   Background:  Polarization splitter rotators (PSR) are used to separate the different polarization states of a beam of light entering the input port of the rotator, into different output ports on a photonic integrated circuit (PIC). These are generally used in one direction only, and lack efficiency.   Advantages:  *  Reduces the required number of optical I/O ports (or roughly doubles the number of available I/O ports) *  Increases the utilization of the capacity available on the chip *  Eliminates cross-talk and Bragg grating effect   Applications: *  Photonic integrated circuits (PICs) *  Telecommunications   Contact:  Amy Phillips aphillips@optics.arizona.edu Refer to case number UA18-206

Laser Beam for External Position Control and Traffic Management of On-Orbit Satellites

Fri, 2018-10-26 17:42
ua19-036 - Title: Laser Beam for External Position Control and Traffic Management of On-Orbit Satellites   Invention: This invention is a satellite control system. The system consists of a customized “smart skin” containing solar panels, power and control circuitry, and an embedded secondary propulsion system. A laser is used from a ground station or another spacecraft and is beamed towards the satellite. The satellite has onboard photovoltaics that act as a wake-up laser receiver. This approach enables a laser ground station or a spacecraft to broadcast commands to the spacecraft in times of emergency that would trigger operation of the secondary propulsion system to perform impulse maneuvers, altitude control maneuvers, and corrections.   Background: This technology offers several benefits over existing techniques, such as low initial investment, low power usage, high bandwidth, and high security. The “over-congestion” of key satellite orbits greatly decreases their utility, as collisions become far more likely. Adding an actuated reflector to the spacecraft will enable laser ranging and two-way communication between ground station and the spacecraft, in a secure manner not currently available to RF communication systems. There is a need to develop secondary and backup systems to effectively move these satellites and perform traffic management of derelict satellites so that collision risks are minimized or eliminated.   Applications: • On-Orbit Satellites • Optical Communication Technology • Small Electronic Devices • Government & Military • Commercial & Private Entities   Advantages: • Low cost • Long-distance • Increased data • High bandwidth • Secure Transmission   Licensing Manager: Bob Sleeper RobertS@tla.arizona.edu 520-626-4604

Novel Polymers for Mid-and Long-Wave Infrared Imaging

Wed, 2018-10-03 17:42
ua19-032 - Title: Novel Polymers for Mid- and Long-Wave Infrared Imaging   Invention:  New polymer compositions that are transmissive for mid-wave infrared (3-5 microns) and long-wave infrared (8-12 microns) sensing and imaging.   Background: Infrared imaging conventionally uses expensive inorganic transmissive materials for lenses, such as chalcogenide glass and amorphous germanium, which require cutting and polishing.  This inventive polymer-based transmissive medium can be formed using scalable, inexpensive polymer production processes.   Applications: • LiDAR • Electronics • Optics   Advantages: • Inexpensive • Useful for mid- or long-wave IR applications Licensing Manager: Laura Silva LauraS@tla.arizona.edu 520-626-1557

A Photorefractive, High Refractive Optical Polymers From Styrenic Sulfide Monomers

Mon, 2018-09-17 17:41
ua17-144 - Title: A photo-definable high refractive index optical polymer from styrenic sulfide monomers   Invention: This is a novel method to create optical polymer with regions of high and low refractive index.   Background: The inventors were motivated by large technological motivation for optical polymers that are low-cost and have variable refractive index, especially in telecommunication. They have demonstrated the synthesis of a new compound, a new type of polymer, which can be used on the fabrication of new optical devices.    Applications: •       Novel way to make new polymers that can have variable refractive index •       Create new optical devices Advantages: •       High refractive index •       Refractive index is tunable during the polymerization process   Licensing Manager:  Laura Silva LauraS@tla.arizona.edu 520-626-1557    

Technique for Replication of Volume Holographic Optical Elements

Thu, 2018-09-06 17:45
ua18-195 - Title: Technique for Replication of Volume Holographic Optical Elements   Invention: Researchers at the University of Arizona (UA) have developed a method to replicate HOEs in a manner that eliminates the problems with contact copy techniques, and introduces additional functionalities not possible to achieve with those techniques. The UA’s novel process replicates volume holographic optical elements (HOEs) based on optical contact with the master HOE. Unlike common industry variants, no physical contact is required between the master HOE and the copy HOE.   Background: Hologram replication is an important topic when considering mass-production of volume holographic optical elements (HOEs) of all shapes and sizes. The current standard is the replication technique known as contact copy, which involves making direct contact with the copy HOE is order to create the master HOE. Contact copy and variant methods face issues with the fabrication process, complexity of design, speed of systems and sensitivity problems due to mechanical vibration.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu Refer to case number UA18-195

Hybrid Mod-Enmat Lens

Tue, 2018-09-04 17:41
ua18-223 - Title: Hybrid MOD-Enmat Lens   Invention: Researchers at the University of Arizona have designed an optical device comprising a MOD-DFL and an achromatizing compensation mechanism that reduces refractive dispersion created by the MOD-DFL, thereby reducing the focal range of the MOD-DFL.  A method is also provided of using the optical device in an image processing system to obtain images of an object and processing the images to perform image enhancement.   Background:  A multiple-order diffractive Fresnel lens (MOD-DFL) operates over a set of higher diffracted orders where each order contains a wavelength of peak diffraction efficiency and each of these wavelengths come to a common focus.  For a singlet design, refractive dispersion quickly becomes an undesirable characteristic of the MOD-DFL over large wavelength bandwidths, increasing the focal range across the bandwidth. In practice, this increase in focal range is detrimental to most imaging systems.  It is caused by refractive dispersion from the MOD-DFL lens material.  A need exists for a MOD-DFL having reduced refractive dispersion, and consequently, a reduced focal range.      Advantages: * Reduces focal dispersion * Allows for large aperture, light weight lenses   Applications: * Ground-based telescopes * Space-based telescopes * Spectrometers   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-223

Radial Streaking Artifact Reduction Using Phased Array Beamforming

Wed, 2018-08-29 17:41
ua18-220 - Title: Radial Streaking Artifact Reduction Using Phased Array Beamforming   Invention: This invention is a method and software for mitigating the streaking artifact in radial magnetic resonance imaging (MRI). After being tested on MRI scanners and compared to current coil based methods, this new method, known as B-STAR, utilizes phased array beamforming and reduces streak artifacts without any noticeable loss in signal levels.   Background: When taking images of large areas of the human body, like the abdomen, obstruction will occur in a streaking artifact. This streaking artifact makes the image difficult to read and significantly lowers the quality, which can result in an incorrect diagnosis, inevitably slowing down the treatment and healing process for a patient. Therefore there is a need for a strategy that can mitigate the streaking artifacts in MRI.   Applications:   Advantages:   Licensing Manager: Bob Sleeper RobertS@tla.arizona.edu (520) 626-4604

Optical Printed Circuit Board With Polymer Array Switch

Wed, 2018-08-15 17:46
ua16-203 - Title: Optical Printed Circuit Board with Polymer Array Switch   Invention: Researchers at the University of Arizona have developed a flexible polymer waveguide array structure that 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. Using an array of small polymer waveguides stitched together onto one circuit board, it provides a solution to the losses and manufacturing difficulties of conventional polymer waveguides, efficiently coupling to individual optical devices, such as silicon photonic chips, and propagating light over distances ranging up to tens of centimeters.   Background: Polymer waveguides are useful for making connections among optical devices at short distances (1mm-10mm). However, at long distances (greater than 10mm), current polymer waveguides experience a number of disadvantages including long exposure times, higher losses, and difficult manufacturing options to reduce losses. The technology presented here solves these issues.   Applications:   Advantages:   Contact:  Amy Phillips AmyP@tla.arizona.edu refer to case number UA16-203