Available Technologies (through the UA Office of Technology Transfer)

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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

Inexpensive External Cavity Diode Laser

Sat, 2018-07-21 17:40
ua18-247 - Title:  Inexpensive External Cavity Diode Laser   Invention:  Researchers at the University of Arizona have developed an inexpensive and compact platform for robust compact laser sources.  The novel laser platform provides continuous-wave (CW) and single-frequency operation with efficient further frequency agility using external cavities.  The lasers are inexpensive to make and perform the same functions with the same characteristics as much more expensive lasers.   Background:  Although trapped ions systems represent one of the very promising avenues for scalable quantum systems technology and have demonstrated high-fidelity multi-qubit operations, the laser systems used in this application can occupy a significant fraction of the researchers' time, attention, and resources in dealing with beam misalignment, power instabilities, and frequency locking/re-locking.  With growing commercial interest in quantum technology, there is a compelling need and demand for robust compact laser sources to enable scalability.   Advantages: * easy to fabricate * inexpensive and compact * single frequency operation   Applications: *  consumer electronics *  atomic and molecular spectroscopy *  quantum communications   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-247  

Polarization State Scrambler Using Birefringent Phase Mask

Sat, 2018-07-21 17:40
ua19-001 - Title:  Polarization State Scrambler   Invention:  A University of Arizona researcher has designed a device to efficiently convert partially polarized and polarized light into unpolarized light.  The passive device provides almost instantaneous conversion of polarization, as opposed to the current methods which use a modulator that requires a signal generator and drive electronics. The novel device will be very useful for telecom, imaging, and illumination.   Background:  In fiber optic communication systems, light signals are highly sensitive to polarization impairments such as polarization mode dispersion and polarization dependent loss. Lithium Niobate (LiNbO3) scramblers, which operate as a tunable waveplate that modulates the polarization state of light, are often utilized to mitigate some of the problems by converting a fixed incoming polarized light into random or pseudo-random polarized light at different times. In telecommunications, the scrambling rate should be faster than the inverse gain recovery time of the fiber amplifier. The scrambler should have low cost, low wavelength and temperature sensitivity and long lifetime.   Advantages: *  passive - no power required *  nearly instantaneous conversion of polarization *  easy to reproduce in high volumes   Applications: *  telecommunications *  imaging *  illumination   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA19-001

High Speed Raytracing Method

Sat, 2018-07-21 17:40
ua18-196 - Title:  High Speed Raytracing Method   Invention:  University of Arizona researchers have developed methods and associated devices and systems that greatly reduce the computational operations of a ray tracing system by modifying the representations of the optical surfaces and contours in the optical system based on the illumination source.  Using the novel method, more than 800 iterations were completed in less than 6 seconds.  In comparison, commercial software programs took around 2.22 hours on high precision settings with a single CPU core to complete the same computation.   Background:  Ray tracing techniques used to design optical systems compute the paths of optical rays as they propagate through the system with regions of varying propagation velocity, absorption characteristics, and reflecting surfaces.  Typically, many rays (e.g., hundreds, thousands, or up to billions) are traced through the system making the ray tracing operations computationally expensive.   Advantages: *  Over 1000 times faster than conventional ray-tracing software *  Can be implemented in digital electronic circuitry, computer software, firmware, or hardware   Applications: *  Optical design   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-196  

Implementing Multiplication and Division in Optics

Wed, 2018-07-11 17:42
ua18-191 - Title:  Implementing Multiplication And Division In Optics   Invention:  This invention is an all-optical approach to implementing mathematical operations on a circuit board in a computer. It uses the non-linear response to light of certain types of thin film materials in a novel approach to multiply & divide numbers in an all-optical mathematical circuit. The approach is an analogue method which implies a constant time for mathematical operation and will not increase as the problem size increases in scale   Background:  One of the major challenges in electronic computation is the optimization problem occurring in a large data set where each variable depends on or has influence on other variables. Probabilistic graphical models (PGMs) are tools that are used to compute probability distributions over large and complex interacting variables.  Electronic central processing units (CPUs) are not the best tools to address these problems because of  heat generation and bandwidth limitations of electronic devices as they get smaller and faster.   Advantages: * no heat generation * extremely fast * does not slow down as the problem size increases   Applications: * mathematical circuits handling large data sets * probabilistic graphical models (PGMs)   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-191

Methods for Simple in Vivo Microscopic Imaging Devices

Wed, 2018-07-11 17:41
ua18-188 - Title:  Methods For Simple In Vivo Microscopic Imaging Devices   Invention:  University of Arizona researchers have designed a novel confocal microscope that does not use any detection apertures or slits for confocal optical sectioning, providing a simple and small microscope at low cost.  The aperture-less confocal microscope can be configured for oblique tissue imaging, as a module inside a smartphone, or for low-cost confocal endomicroscopy.    Background:  In conventional confocal microscopy devices, a point beam is scanned by beam scanning devices such as galvo scanners and polygon mirrors to obtain two-dimensional confocal images. This has been improved with designs for a scan-less confocal microscope that illuminates a line beam through a diffraction grating to obtain two dimensional confocal images without having to use any beam scanning devices.  However, the scan-less confocal needs precision alignment of the detection slit, which requires use of precision translation stages and high-quality lenses around it. These additionally components have been hampering further reduction of the device cost and size.   Applications: *  dermatology *  endoscopy *  fingerprint imaging Advantages: *  no scanning required *  easy alignment and assembly *  low cost *  can be miniaturized   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-188    

Rotationally Shift Invariant and Multi-Layered Microlens Array

Wed, 2018-07-11 17:41
ua18-192 - Title: Rotationally Shift Invariant and Multi-Layered Microlens Array   Invention: This invention describes a nontraditional use of the Gabor Superlens and is a configuration of multiple microlens array structures.  The rotationally shift invariant and multiple microlens array system provides  full-field of view imaging wherein all of the incoming light (i.e., light from all directions), in a solid angle of 4pi steradians, is focused inside the optics.   Background: LiDAR and other sensing technologies have need for the collection of light reflected from a scene in full 4Pi steradians with one optical system, but achieving such systems has remained challenging. It has traditionally been considered impossible because it was believed that detectors must be placed outside the optics, blocking the incoming light. Therefore, there is a need for an optical design wherein the detectors are positioned to provide full-field of view imaging and/or photo collection without blocking any of the incoming light.    Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu Refer to case number UA18-192

Handheld Ultrasound Transducer Array for 3D Transcranial Ultrasound and Acoustoelectric Imaging and Related Modalities

Wed, 2018-07-11 17:41
ua17-164 - Title: Handheld Ultrasound Transducer Array for 3D Transcranial Ultrasound and Acoustoelectric Imaging and Related Modalities   Invention: This invention is a hand-held ultrasound array that utilizes acoustoelectric technology to develop accurate, real-time and volumetric images of the human skull in order to diagnose and treat brain disorders.   Background: Acoustoelectric imaging utilizes an interaction between local pressure (pulsed ultrasound) and resistivity to detect and image tissue densities. Functional magnetic imaging, positron emission tomography, and optical imaging of intrinsic signals suffer from limited resolution on the order of a spatial resolution and the “inverse problem.” Magnetoencephalography improves resolution, but the equipment is bulky, expensive, and does not solve the inverse problem. Therefore, there is an unmet need to improve mapping of electrical brain activity on a detailed scale.   Applications:   Advantages:   Licensing Manager: Rakhi Gibbons RakhiG@tla.arizona.edu (520) 626-6695

Imaging Agents for Detection and Treatment of Breast Cancer

Mon, 2018-07-02 17:41
ua17-180 - Title: Imaging Agents for Detection and Treatment of Breast Cancer   Invention: The invention is a breast cancer metastasis-targeting agent capable of identifying boundaries between normal and diseased tissues. These synthesized agents will bind to tumor cells, allowing surgeons to reliably remove diseased tissues.   Background: Surgical biopsy of the sentinel lymph nodes (SLN) is an invasive and expensive burden for patients. It is common for patients to feel short-term pains, swelling and bruising after their SLN biopsy. Numerous untargeted agents, like sulfur colloids, blue dyes and nanomaterials, have been used to identify SLN while lymph node mapping remains an industry standard for the prognosis of breast cancer. Through targeted identification of auxiliary lymph node (ALN) metastasis, this technology can eliminate the need for sentinel node excision, which reduces the risk of pain or infection.   Applications:   Advantages:   Licensing Manager: Laura Silva LauraS@TLA.arizona.edu (520) 626-1557

Smallsat SSA Station

Thu, 2018-06-21 17:41
ua18-138 - Title: VLBI Multi-Platform Imaging Radar   Invention: This technology is a methodology for using multi-static, long baseline interferometry imaging radar with balloon CubeSat satellites for the tracking, imaging, and classification of space objects, particularly objects that are in geosynchronous Earth orbit (GEO).   Background: Since the launch of Sputnik in 1957, mankind has progressively added more satellites, and consequently more debris, into Earth’s orbit. As of 2013, NASA has tracked over 500,000 pieces of debris larger than the size of an average marble, and this number is constantly increasing. The amount of satellites and debris have posed a problem with the ability to track and image objects, especially those that are small. Traditional techniques for tracking these satellites are not sufficient enough to provide high-resolution images and small objects are often missed. This technique improves on a previously disclosed VLBI imaging technique (UA18-117) to better measure objects in geosynchronous Earth orbit, or those objects that do not move relative to the ground-based array.   Applications:   Advantages:   Licensing Manager: John Geikler JohnG@tla.arizona.edu (520) 626-4605

Differential Target Antenna Coupling (Dtac)

Wed, 2018-06-20 17:40
ua10-042 - Title: Differential Target Antenna Coupling (DTAC) Method for Subsurface Analyses Invention: UA developed an electromagnetic geophysical system that has significantly improved subsurface target sensing and imaging capabilities compared to conventional subsurface measurement systems such as ground penetrating radar. The Differential Target Antenna Coupling (DTAC) method in a vertical array provides a number of important advantages over the large-offset horizontal array for some applications. Advantages: The vertical array, DTAC method can be adapted to rapidly moving measurements, such as from a helicopter. The DTAC method is not sensitive to the orientation of the measurement system and it is relatively insensitive to variations in the background resistivity. The vertical array, DTAC method is also insensitive to surface clutter, such as fences, steel buildings, and vehicles. Applications Suitable transmitter moments can be selected for effective study of near-surface targets (civil engineering, water resource, and environmental characterization) as well as deep targets (mining and other natural-resource exploration) Technology Identification Number: UA10-041 Inventors: 1.       Ben Sternberg 2.       Steve Dvorak   Licensing Manager: John Geikler johng@tla.arizona.edu Ofc: 520-626-4605  

Method of Rapid Nanophotonic Design and a Nanophotonic Waveguide to Fiber Coupler

Wed, 2018-06-13 17:44
ua18-119 - Title:  Method of Rapid Nanophotonic Design and Nanophotonic Coupler   Invention:  Researchers at the University of Arizona have developed a rapid design approach for designing nanophotonic devices.  The invention is a novel implementation of  an iterative optimal approach related to the known coupled dipole modeling approach.  The novel implementation is several orders of magnitude faster than finite difference time domain approaches.   Background:  Most current approaches to the design of nanophotonic devices are based on 2D systems and use slow simulation routines such as finite difference time domain (FDTD).  While these approaches are suitable for the design of 2D structures using lithographic approaches, they are not well suited for the design of 3D structures.   Applications: *  biological sensing *  optical computing *  superresolution microscopy *  compact waveguide-to-fiber couplers   Advantages: *  several orders of magnitude faster than conventional approaches *  better performance of 3D nanostructures   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-119    

Low-Cost, Compact Chromatic Confocal Microscope

Wed, 2018-06-13 17:44
ua18-151 - Title: Low-Cost, Compact Chromatic Confocal Microscope   Invention: Researchers at the University of Arizona have designed a high light efficiency, high resolution confocal microscope that has no moving parts. The new design is high-speed, has axial scanning, is compact, and low-cost.   Background: Current state-of-the-art scanning confocal microscopes use axial and lateral scanning techniques, such as DMDs for lateral scanning and a tunable light source and chromatic objective lens for axial scanning.  These methods are faster than prior efforts, but are expensive and have low light efficiency.  MEMS pinhole arrays have also been used for snapshot 3D imaging, but the lateral resolution is low and also suffers low light efficiency.  Light source arrays have improved the light efficiency, but do not adequately address the axial scanning. Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Identification and Control of Myopic Progression Using Distortion

Wed, 2018-06-13 17:44
ua18-153 - Title: Identification and Control of Myopic Progression Using Distortion   Invention: This technology is a method and system to measure eye distortion due to myopia. The system is used to develop novel lenses and therapies to correct and/or stop the distortion’s progression in patients.   Background: Current solutions for measuring one’s eye distortion do not consistently work for individuals, allowing instead the progression of myopia to continue and become more severe. The technology presented here provides a solution for measuring and assessing early onset myopia with the goal of stopping its progression.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Attomicroscopy: Attosecond Electron Microscopy and Diffraction

Wed, 2018-06-13 17:44
ua18-172 - Title: Attomicroscopy: Attosecond Electron Microscopy and Diffraction   Invention: This technology introduces additional novel compontents to the conventional optical gating technique and results in electron pulses of less than 20 femtoseconds and even into the attosecond realm. This provides improved temporal resolution for imaging done by electron microscopy and diffraction imaging.   Background: Traditional electron microscopes are limited in their temporal resolution. The current state of the art has only achieved 200 femtosecond electron pulse widths.  Using faster optical pulses to gate the electron pulses has been limited by the limitations on the optical pulse widths to drive the gating.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Snapshot Interferometer for Surface Profile and Roughness

Wed, 2018-06-13 17:44
ua18-175 - Title: Snapshot Interferometer for Surface Profile and Roughness   Invention: Researchers at the University of Arizona have designed an instrument that can take a “snapshot” of a surface’s profile and roughness simultaneously.  The non-contact metrology tool is high speed with high sensitivity, precision, and resolution.  It can be used with a variety of light sources across various applications.   Background: Metrology is an integral part of the automated manufacturing process. As new processes become automated, new technology must be developed to handle the imaging of more complex parts quickly, while being low-cost, scalable and, in many cases, portable. Instruments exist to measure either surface profile or surface roughness, but it would be more cost efficient to have a single instrument which could do both.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Stochastic Bag Generator (Sbg)

Wed, 2018-06-13 17:44
ua18-177 - Title: Stochastic Bag Generator (SBG)   Invention: This technology is a method of modeling the response of a luggage inspection device based on a variety of contents and packing styles.  The method is used to calibrate inspection instruments' responses, and predict successful inspection.  This allows for better inspection machine design, decreases the number of bags pulled for secondary screening, and increases the effectiveness of identifying threats.   Background: Every year, millions of bags are screened at airports, ports of entry, and even when entering high-security buildings. Bags are often flagged as containing a suspicious item but after a manual check of the bag, the bag actually doesn’t contain any harmful items.  This increases the inspection time and is vulnerable to mistakes.   Applications:   Advantages:   Licensing Manager: Amy Phillips Amyp@tla.arizona.edu

Rotationally Shift Invariant Optical System

Wed, 2018-06-13 17:44
ua18-207 - Title:  Rotationally Shift Invariant Optical System   Invention:  Researchers at the University of Arizona have designed a highly sophisticated LiDAR system that uses a novel optical phased array transmitter in conjunction with a novel spherically shift-invariant (SSI) receiver system to provide depth information over a large 2D scene in a single snapshot.  The field of view of the receiver is increased by the novel optical design to properly focus incoming light from a large set of angles. The system also improves the depth resolution and reduces position ambiguity.   Background: Optical phased arrays have been used for increasing the speed and field of view of LiDAR systems, but the element to element spacing is too large, leading to reduced range and target position ambiguity.  For some applications, SSI systems can increase the field of view, but at large angles, the focal point quickly moves away from the centerline.   Advantages: *  Fast scanning *  Huge field of view *  High resolution with enhanced position accuracy   Applications: *  LiDAR *  Autonomous driving vehicles *  Remote sensing   Contact: Amy Phillips aphillips@optics.arizona.edu Refer to case number UA18-207