Available Technologies (through the UA Office of Technology Transfer)

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Multi-Static/vlbi Imaging Radar for Characterizing Space Objects

Thu, 2018-04-12 17:45
ua18-117 - Title: Multi-Static/VLB Imaging Radar for Characterizing Space Objects   Invention: This invention is a methodology for using multi-static, long baseline imaging radar for the tracking, imaging and classification of Near-Earth Objects (NEOs).   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 but still problematic because of their high speed. Traditional techniques for tracking these satellites are not sufficient enough to provide high-resolution images, meaning small objects are often missed. The technique presented here will allow researchers and defense agencies to locate space objects and track them in a more timely manner.   Applications:   Advantages:   Licensing Manager: John Geikler JohnG@tla.arizona.edu (520) 626-4605

Method for Detection of Defects in Semiconductors Using a Novel Multiphoton Microscope

Wed, 2018-04-11 09:03
ua18-096 - Title:  Method For Detection Of Defects In Semiconductors   Invention:  This is a system that uses a multi-photon microscope to scan and detect defects in thin films of semiconducting materials including polymers and crystals.  The novel detection technique identifies areas exhibiting anomalies for further inspection with 2 micron resolution.   Background:  Conventional methods of measuring a spectrum from a sample using multi-photon microscopy (MPM) typically involve setting galvanometers at their highest speed with lowest pixel resolution to scan a whole area quickly,  But that imaging technique takes an average of the surface of the sample and does not properly illuminate certain regions for a sufficient period of time to catch all defects.  Random sampling also misses many defects.   Applications: *  Defect detection in materials   Advantages: *  Higher detection rate *  Provides analysis of the defect *  Works for silicon wafers, amorphous silicon, thin films of polymers and copolymers, blends that include fullerenes,  and semiconductor crystals   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-096    

Polygon X-Prism for Imaging and Display Applications

Wed, 2018-04-11 09:03
ua18-132 - Title:  Polygon X-Prism for Imaging and Display Applications   Invention:  The invention is a prism with more than three output facets, by including additional optical interfaces inside the cube.  For example, all six facets of the cube can be used such that one facet is the input and five facets are the outputs.  The invention can apply to even large polygonal prisms, utilizing all facets of the polygonal prism.   Background:  A conventional x-prism splits an incoming light beam into three beams with equal path lengths and different directions.  When operated in revers, the x-prism acts as a combiner that combines three lights beams from different directions into one beam with equal path lengths.  In some applications, however, it is beneficial to split an incoming light beam into more than three components using a passive optical element that has a compact form factor.    Applications: *  multi-color projectors *  passive optical routers *  beam combiner *  full spectrum camera *  imaging polarimeter   Advantages: *  passively splits or combines beams *  compact   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-132

Polarization Preserving Bidirectional Isolator

Wed, 2018-04-11 09:03
ua18-066 - Title:  Polarization Preserving Bidirectional Isolator   Invention:  The invention is a bidirectional isolator that can be a stand-alone component, or used to stabilize the output of  a bi-directional ultra fast fiber laser.  The use of the isolator in such a laser allows the various modes to oscillate with fixed phases with respect to one another and constructively interfere with one another, producing an intense burst or pulse of light.    Background:  Polarization effects can cause unwanted power and frequency modulation in laser systems generally.  In bi-directional lasers, this can cause the lasers to become unstable.  Conventional means of isolating the polarization state of the light within the bidirectional laser are expensive and difficult to align.   Applications: *  Bi-directional ultra fast pulsed lasers *  Spectroscopy *  Precision range-finding *  Pump-probe experiments using asynchronous sampling Advantages: *  Inexpensive and compact *  Easier to align, and keep aligned *  Accommodates self-starting *  Low insertion loss, high extinction ratio   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-066  

Multi-Zone Diffractive Mask for Fine Control of Light Amplitude and Phase

Wed, 2018-04-11 09:03
ua15-207 - Title: Diffractive Optical Element for Blocking Light Invention: The invention is a mask that can be used in an optical setup to diffract an amount of light based on wavelength. The mask is placed within the focal plane to solve the size-chromaticity problem by using this phase technique. This will achieve better resolution and high start to planet contrast. Background: In the study of the Sun’s corona, light from the central portion of the sun needs to be blocked while the light of study needs to be transparent. A coronagraph achieves this. In addition, exoplanet finding is extremely popular but is also negatively affected by unwanted starlight. Masks that diffract light at certain wavelengths can help detect planets previously hidden by starlight. Applications: Advantages:

Bidirectional Self-Starting Ultrafast Fiber Laser

Wed, 2018-04-11 09:02
ua18-067 - Title: Bidirectional Self-Starting Ultrafast Fiber Laser   Invention: This technology is a bidirectional, self-starting, ultrafast fiber that has a mode-locked operation that is assisted by polarization multiplexing optical fibers. It has a specialized non-reciprocal element, which assigns a polarization to a propagation direction and forces the laser to operate in two separate polarizations in at least one part of the cavity.   Background: Starting mode-locked operation in a bidirectional fiber laser requires a control system or a technician, and fiber laser systems are typically complex in design. Alignment is difficult and needs to be tweaked often. The invention presented here has solutions for both of these issues by being self-starting and utilizing components that drastically simplify the system design and alignment.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Amplification of the Incidence Angles of a Light Beam to Cover Up to 4pi Steradians

Wed, 2018-04-11 09:02
ua18-108 - Title: Amplification of the Incidence of a Light Beam to Cover Up to 4Pi Sterdians   Invention: The invention employs a means of preventing total internal reflection and allows the beam to exit the material to steer at a wider diffraction angle, increasing the incidence angle of a light beam for spatial light modulators and integrated phase arrays.   Background: Non-mechanical beam steering requires efficient diffraction and a high angle of incidence. At high angles, the diffracted beam becomes trapped between interfaces and can’t exit the material. To allow access to the beam, total internal reflection must be avoided.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Calibration Method for Photon Counting Detectors

Wed, 2018-04-11 09:02
ua18-137 - Title: Calibration Method for Photon Counting Detectors Invention: This technology is a calibration method that could be a game changer for adoption of photon counting-based imagery. It solves long-standing challenges in the calibration of detectors used in medical imaging devices and is also useful for security screenings and other imaging photon counting detectors. The present method is simple to use, requires less time than conventional calibration methods, and is easy to implement, while also pushing the current state of the art into additional applications. Background: The calibration process for photon counting-based imagery has been a hindrance to its broader adoption.  The relative signal strengths of the light sensors within the photon counting detectors are used to estimate the position and energy attributes of each gamma-ray interaction.  Several methods consisting of simple linear combinations of signals are conventionally used to estimate gamma-ray interaction position for monolithic crystal gamma-ray detectors.  In order to apply these methods, detector calibration is necessary to determine the detector sensors response as a function of gamma-ray interaction position.  However, each of these methods has significant disadvantages, such as being very time consuming or being unable to calibrate depth of interaction information. Accordingly, what is needed is an improved method for calibrating gamma-ray and photon counting detectors. Applications: Advantages: Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Single-Chip ASLM

Wed, 2018-04-11 09:02
ua18-077 - Title:  Single Chip ASLM   Invention:  Researchers at the University of Arizona have developed an apparatus and means of using DMDs and DLP chips in more than just a binary manner.  The novel apparatus and means produces a spatial light modulator that also acts as an angular light modulator.   Background:  The Digital Micromirror Device (DMD) is a type of Spatial Light Modulator (SLM) composed of an array of micromirrors. Each mirror, acting as a pixel in a display, is a binary switch rotating between two states located at +12 degrees and -12 degrees (specific product dependent), effectively “on” and “off” states.  The DMD is typically used as a binary device.   Applications: *  LiDAR *  Beam steering   Advantages: *  High speed with a wide angular range *  Inexpensive compared to conventional devices   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-077

Field Steering ASLM

Wed, 2018-04-11 09:02
ua18-078 - Title:  Field Steering ASLM   Invention:  Researchers at the University of Arizona have developed an apparatus and means of using DMDs and DLP chips in more than just a binary manner.  The novel apparatus and means produces a spatial light modulator that also acts as an angular light modulator.  One set of embodiments allows an entire field of an image to be steered for illumination or detection.   Background:  The Digital Micromirror Device (DMD) is a type of Spatial Light Modulator (SLM) composed of an array of micromirrors. Each mirror, acting as a pixel in a display, is a binary switch rotating between two states located at +12 degrees and -12 degrees (specific product dependent), effectively “on” and “off” states.  The DMD is typically used as a binary device.   Applications: *  LiDAR *  Beam steering   Advantages: *  High speed with a wide angular range *  Inexpensive compared to conventional devices   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-078

Techniques for the Rejection of Daylight to Enhance Daytime Satellite Detection

Wed, 2018-04-11 09:02
ua18-145 - Title: Techniques For The Rejection of Daylight To Enhance Daytime Satellite Detection   Invention: This technology describes a new technique that helps reject scattered daylight from the sky to enhance visibility of satellites and space debris during daylight hours. This technology can improve satellite detection, reliability and accuracy. This daytime tracking can be used to monitor and maintain custody of high interest objects during the daytime.   Background: The difficulty of detecting satellites during the daytime is well documented due to the brightness and color of the sky, as well as high variability. Previous techniques looked to track satellites during the daytime while utilizing spectral differences between satellites and the sky. The technology presented here seeks to maintain variability and provide higher reliability when tracking high interest objects during the day.   Applications:   Advantages: Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Fabrication of Diffractive Patterns on Aspheric Mirror Substrates

Wed, 2018-04-11 09:02
ua18-146 - Title: Fabrication of Diffractive Patterns on Aspheric Mirror Substrates   Invention: This technology is a novel way of printing diffractive pupils through a means of maskless lithography on any surface.   Background: Currently, the fabrication of diffractive pupils is limited to planar surfaces because there are many issues and restrictions with printing diffractive pupils on aspheric mirror surfaces. Printing diffractive structures on a spherical mirror is an inconvenient method currently and causes asymmetric distortion in telescopes.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Digital Fringe Projection and Multi-Spectral Polarization Imaging for Rapid 3D Reconstruction

Wed, 2018-04-11 09:02
ua18-085 - Title: Digital Fringe Projection and Multi-Spectral Polarization Imaging for Rapid 3D Reconstruction   Invention: The invention embodies methods, devices and systems that utilizes Digital Fringe Projection (DFP) to generate three dimensional (3D) images of an object based on measurement of polarizations and/or color light in a single shot. Unlike conventional techniques, which require sequential measurements, the novel systems acquire high dynamic range information in a single shot and can be applied to rapidly changing scenes and objects. It’s fast, portable, compact, and has low power consumption.   Background: Three dimensional (3D) imaging techniques have applications in industrial metrology, virtual and augmented reality, remote sensing, medical diagnostic, biometrics and homeland security. To achieve 3D imaging, existing techniques, such as light detection and ranging (LIDAR), stereovision, light field or plenoptics imaging, structured light illumination and digital fringe projection (DFP), have been developed. However, LIDAR, structured light illumination and DFP often require scanning and acquisition of multiple frames. Stereovision requires more than one camera at different locations to provide accuracy. Plenoptics imaging requires complex algorithms and computation hardware for 3D reconstruction; in addition, the spatial resolution is reduced.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu Refer to case number UA18-085

Narrow-Linewidth Vertical External Cavity Surface Emitting Laser

Wed, 2018-04-11 09:02
ua18-101 - Title:  Narrow Line-width Vertical External Cavity Surface Emitting Laser   Invention:  The invention uses a strategic placement of the gain chips, cavity mirrors, and polarization elements to address the thermal management issues and eliminate or mitigate mode hopping issues. With the novel architecture, the lasers can be stabilized to provide mode-hop free operation with a narrow line-width of 10 MHz, thus improving the overall efficiency of such systems.   Background:  A major technical challenge in high-power VECSELs is thermal management. The heat dissipated in small volume/area of the semiconductor device must be removed with minimum temperature rise and can require a complex, costly and bulky solution. One approach to manage heat dissipation is to use multiple VECSEL devices in the laser resonator to achieve higher output powers, so that heat dissipation is distributed among multiple devices. However, such multi-device VECSEL configurations suffer from longitudinal mode hopping and standing wave problems.  Mode hopping issues can also occur in a single-device VECSEL configuration, where the gain chip is placed at the cavity fold. The invention addresses the thermal management issues and eliminate or mitigate mode hopping issues.   Advantages: *  good thermal management *  mode-hopping mitigated *  narrow line-width *  high power   Applications: *  Guide stars for telescopes *  Adaptive optics *  Optical pumping *  Satellite communications   Contact: Amy Phillips amyp@tla.arizona.edu Refer to case number UA18-101

Optical Gating of Electron Pulses for Femtosecond and Attosecond Electron Microscopy and Diffraction Imaging Applications

Wed, 2018-04-11 09:02
ua18-144 - Title: Optical Gating of Electron Pulses for Femtosecond and Attosecond Electron Microscopy   Invention: This technology provides a novel twist on the conventional optical gating technique and results in electron pulses of less that 100 femtoseconds. 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 Refer to case number UA18-144

Label-Free Single Molecule Spectroscopy and Detection

Tue, 2018-03-27 21:51
ua18-063 - Title: Label-Free Single Molecule Spectroscopy and Detection   Invention: Our invention incorporates FLOWER with dual frequency comb spectroscopy for molecular detection as well as identification.  Recently, we have improved the signal to noise ratio of these measurements more than 1000 times using frequency locking feedback control in combination with innovative data processing techniques.  Background: FLOWER is the acronym for a label-free biological and chemical sensing system known as a Frequency Locked Optical Whispering Evanescent Resonator that integrates microtoroid optical resonators with frequency locking feedback control, which aids the suppression of noise.  Light is evanescently coupled into the microtoroid using an optical fiber.  As particles bind, the resonance frequency of the microtoroid changes, enabling sensitive detection of binding events with resolution down to the macromolecule level and signal to noise ratio of 5.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

Flexible Curved Reflector Elements

Sun, 2018-03-18 20:41
ua17-117 - Title:  Flexible Curved Reflector   Invention:  University of Arizona researchers have developed novel methods, devices and systems to provide coatings and thin film layers on arbitrarily sized and arbitrarily shaped curved optical surfaces by, in part, using a deposition technique to provide a coating on a flexible substrate (e.g. glass) that can be subsequently shaped to conform to a particular curved surface.  This is an effective, versatile, and low cost solution for providing optical coatings for curved surfaces of arbitrarily large size.   Background:  Regardless of the particular method that is used to form thin film layers, it is generally difficult and expensive to provide complex multil-ayer coatings onto arbitrary curved surfaces, especially large curved substrates such as those used in solar power systems.  In such scenarios, the dimensions of the coating are often limited to the size of the equipment that is used for depositing the thin film layers.  In essence, it becomes more difficult and expensive, and in case of very large optics, impossible, to meet the size and optical characteristics requirements of such coatings using conventional methods and equipment.   Advantages: *  inexpensive *  accommodates arbitrarily large surfaces *  accommodates arbitrarily shaped surfaces   Applications: * solar power systems (e.g., concentrated photovoltaic systems) *  telescopes *  laser systems   Status:  Provisional patent application has been filed; system has been demonstrated   Contact:  Amy Phillips amyp@tla.arizona.edu Refer to case number UA17-117

Flexible Curved Optics Elements With Laminate

Sun, 2018-03-18 20:41
ua18-079 - Title: Flexible Curved Reflector Elements   Invention: The invention is a means of allowing a substrate like glass, a mirror or plastic, to flex after a coating is applied.   Background: Flexible glass is employed as a substrate for vapor deposited thin films to create low-cost curved mirrors in shapes like parabolic, hyperbolic, etc. The elasticity of substrate material may be exploited to create free-standing contours defined by an underlying mechanical constraint. These flexible mirrors may be tiled as a means of laminating larger curved surfaces. This invention eliminates the need for deposition of complex multilayer coatings by allowing for standard deposition onto a flat flexible glass substrate and forms flexible glass onto an underlying supporting substrate.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu

A Locking Clamp That Enables High Thermal and Vibrational Stability for Kinematic Optical Mounts

Sun, 2018-03-18 20:41
ua18-088 - Title: A Locking Clamp that Enables High Thermal and Vibrational Stability for Kinematic Optical Mounts   Invention: This technology is a simple apparatus that reduces the angular drift of an optical mount when subjected to thermal or vibrational perturbations. The novel device provides inexpensive mounts with the ability to achieve <2 μrad/C drift when exposed to unbalanced thermal shock either to one part of the mount itself or to the entire optical system.   Background: Current commercial kinematic optical mounts suffer from instability when exposed to fluctuations in temperature and vibrations. Often, the only way to mitigate the negative effects of such perturbations is through purchasing expensive high-end custom mounts.    Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu Refer to case number UA18-088

3D Printing Contact Lens

Sun, 2018-03-18 20:41
ua18-092 - Title: 3D Printing Contact Lens   Invention: This invention utilizes a pulsed laser to locally cure optical materials used in fabricating freeform optics, specifically contact lenses.   Background: Producing contact lenses is an expensive and time consuming process. However, the need and popularity for contact lenses is rising every year. This technology seeks to alleviate the costs of manufacturing contact lenses by offering a new mode of producing them via 3D printing.   Applications:   Advantages:   Licensing Manager: Amy Phillips AmyP@tla.arizona.edu