Electronics and Electro-Optics
33 Results were found on Technologies
Sub Category Name
Energy Harvesting Module and Low Power Rectifier Circuit
RADIO frequency (RF) energy harvesting has garnered much interest in recent years as our lives have become more connected. Whether it be smart homes, industry 4.0, wearables or sport-tech; objects which were once inanimate are brought to life with electronics such as sensors, and low-power transceivers. This evolution of ‘things’ is commonly referred to as […] Read More >
Advancements in Metrology through Interferometry with Doubled Imaging Area (IDIA)
Metrology, the science of measurement, plays a crucial role in various fields, including manufacturing, healthcare, and materials science. Accurate and efficient imaging techniques are essential for characterizing materials and biological samples. Traditional interferometric methods often face limitations in field of view (FOV) and acquisition speed, hindering their application in dynamic and large-scale measurements. The recent […] Read More >
Calibration of Fiber Optic Sensor Underground
The precise geolocation of underground fiber optic telecom cables is crucial for operator maintenance, to avoid construction-related damage, and to minimize costs during network upgrades. Our innovative calibration technology provides non-instrusive high-accuracy localization of subsurface fiber optic cables, using only video inputs and ambient urban under any noise conditions. In addition, the same data are […] Read More >
Traffic Monitoring Using Fiber Optic Sensor
The rapid development of smart cities and their infrastructure requires innovative solutions for traffic monitoring. Fiber optic sensors offer a high-precision, reliable, anonymous, and cost-effective method for real-time traffic data acquisition and analysis. We have developed an AI-based technology, using fiber-optic sensors for comprehensive traffic monitoring systems, enhancing traffic management and safety. UNMET NEED Current […] Read More >
Caches With Many Ways: 16-way Associativity for the Price of 2-way Associativity
Cache design must meet many conflicting demands: high hit rates, low cost, low power, low latency and high throughput. We propose a novel cache design for 16-way associativity with cost and power consumption like 2-way associativity. UNMET NEED We propose a novel cache design with the following features: • High effective cache capacity • Misses […] Read More >
Dense Speed of Sound Shift Imaging for Ultrasonic Thermometry
During thermal therapeutic applications such as high-intensity focused ultrasound (HIFU), hyperthermia, and cryoablation, it is crucial to monitor internal tissue temperature to provide feedback on the procedure. Non-invasive MRI techniques for thermal monitoring are limited by their availability and cost. Ultrasonic thermometry is an emerging adaptable alternative due to the advantages of ultrasound in accessibility, […] Read More >
Using Eye-Tracking in VR to Identify Subject Preferences to Optimize Personalization
The implementation of virtual reality (VR) has been spreading in many research fields and healthcare applications. In order to better personalize the presented content, there is a need to identify the subjective experience at each time point. Previous studies with eye-tracking (ET) have demonstrated its links to preferences; therefore, collecting ET data during VR experiences […] Read More >
Spatially Targeted Transfection of Mammalian Cells
Mammalian cell transfection with DNA, RNA, small molecules, and proteins is a widely used molecular biology technique. The primary method of cell transfection is electropermeabilization, which increases the permeability of the cell membrane, allowing chemicals, drugs or DNA to be introduced into the cell. Bulk electroporation has been used for DNA transfection in suspension cells […] Read More >
Image Processing – Non-Local Image Dehazing
Prof. Shai Avidan Tel Aviv University, School of Electrical EngineeringHaze limits visibility and reduces image contrast in outdoor images. The degradation is different for every pixel and depends on the distance of the scene point from the camera. This dependency is expressed in the transmission coefficients, that control the scene attenuation and amount of haze […] Read More >
Online Training of Stereo Self-Calibration usingMonocular Depth Estimation
Stereo imaging is the most common passive method for producing reliable depth maps. Calibration is a crucial step for every stereo-based system, and despite all the advancements in the field, most calibrations are still done by the same tedious method using a checkerboard target. Monocular-based depth estimation methods do not require extrinsic calibration but generally […] Read More >
Partially coherent radar for car applications
Many different approaches for mapping nearby moving objects are under fast development nowadays due to a number of highly important emerging applications, including autonomous cars and many others. The majority of existent proposals for solving the problem are based on optical imaging with subsequent post processing. While this concept already delivered impressive working prototypes (e.g. […] Read More >
Dynamic structured light projector based on resonance domain diffractive optical elements
The field is the 3D scanning for sensing, imaging, 3D printing and computer-integrated manufacturing. We develop a critical device for dynamic creation of the structured light (SL) patterns that was a bottleneck in triangulation-based 3D sensing with active illumination. Resorting to matured technology of lasers arrays as well as to emerging academically proven technology of […] Read More >
Passive communications with time-varying metamaterials
The coming years will see a revolution by connecting everything to anyone, and RFID and similar technologies, will lead this 300B$ USD industry and 50B connected devices. Examining existing RFID standards suggests that the leading standard, called EPC Gen 2, is a standard in the 900MHz frequency which allows hundreds of tags to be read […] Read More >
A Software Only Anti-Spoofing Defense System for In-Car CAN Bus Networks
Modern cars have multiple dedicated computers under the hood called “electronic control units” (ECUs). These ECUs control many aspects of the car’s operation and are connected to each other in a network that typically uses the CAN bus protocol, which bus is a serial protocol with no security components. Replacing CAN bus with another technology […] Read More >
Subharmonic Wireless Locking of THz transmitter
A novel method for wireless sub-harmonic locking a radiating free-running VCO single source or phased-array at THz frequenciesNeed and AdvantagesAlthough many significant challenges remain, results suggest that CMOS THz ICs are inevitability. Still, the lack of efficient, high-power (watt-level) sources remains the most conspicuous impediment to further progress. Promising applications for terahertz technology include non-ionizing […] Read More >
Multi Focus Imaging using Optical Phase Mask
Abstract A method for extended depth of field imaging based on image acquisition through a thin binary phase plate followed by fast automatic computational post-processing is presented. By placing a wavelength dependent optical mask inside the pupil of a conventional camera lens, one acquires a unique response for each of the three main color channels, […] Read More >
Improvements in BOTDA for fiber optic sensors
TechnologyThis method is based on the Brillouin effect in optical fibers. By using a simple single mode optical fiber, strain is measured in a distributed manner along the entire fiber length, simultaneously, in high repetition rate. By attaching/planting the optical fiber to/in a mechanical structure, its mechanical behavior can be dynamically measured. The Need While […] Read More >
INFERRING THE PERIODICITY OF DISCRETE SIGNALS
A method for testing a signal comprises obtaining a signal, determining whether the signal has at least one period, measuring that period and providing the measurement as output. A power spectral density estimation can be used for signals having a single period, and an autocorrelation function with slicing can be used in an iterative procedure […] Read More >
High Temperature superconducting wires on Sapphire
Next generation of superconducting wires – double-sided coated superconductor tapes on sapphire that will be much simpler to fabricate, will have a lower cost, and much lower AC losses compared with current technologies. We are targeting the electricity market addressing a growing problem of blackouts due to power surges. Using our innovation to introduce revolutionary […] Read More >
Diffractive Optics based on metamaterials
A new technology for producing flat optical components based on optical metasurfaces. These components can potentially serve high resolution imaging, spectrometry, light processing and beam shaping devices. The optical metasurfaces that we develop are composed of closely spaced optical nanoantennas which can be deposited on a wide variety of rigid and flexible surfaces. The engineered nanoantennas […] Read More >
Microelectromechanical Systems (Mems) Sensors and Actuators
TechnologyMy research activity in the area of design and modeling of micro- and nanoelectromechanical systems (MEMS/NEMS) combines both theoretical and applied aspects and falls in several directions. The overall scope of the research is in the development of new approaches to actuation and sensing and their implementation in micro devices. In the realm of micro […] Read More >
Super Organic Tunable and White-Light Emitting Diode (OLED) by a Natural Chromophore Separation Matrix
The Technology A bio-organic framework of mucin, controlling electronic interactions between two or more energetically interacting materials, is presented. The hydrophilic mucins act as a host material for introduced nano-sized hydrophobic dyes. These can be combined in any proportion to generate photo-luminescent emitters fully tunable to any visible wavelength. The technology can provide a process […] Read More >
An Add-On Optical Interferometer Chamber to Phase Microscopes for Sub-Nanometer 3D and Dynamic Information
TechnologyAn add-on optical module for microscopes allowing for single frame and dynamic capture of amplitude and phase profiles of transparent or semi-transparent biological and non-biological samples. This easyto-use interferometric device is simply positioned in the camera port of a conventional inverted microscope, enabling quantitative structural, thickness and refractive index measurements in a noncontact, label-free manner. […] Read More >
Magnetic Devices based on Extraordinary Hall Effect
The Invention Magnetic based sensors and memory elements based on the Extraordinary Hall Effect (EHE). Non-volatile memories can be constructed by utilizing anisotropic thin films resulting in stable hysteresis which can represent binary states. Extremely sensitive sensors can be constructed which generate voltage as a function of magnetic disturbances. Potential Applications Memory devices complementing or […] Read More >
High Speed Photonic Digital-To-Analog Conversion
The Technology A novel integrated optical modulator based on a multi-electrode Mach-Zehnder modulator has been developed at Tel-Aviv University. The device has superior performance in terms of linearity, dynamic range and implementation simplicity. These improvements are achieved by utilizing a unique mapping method between the analog input and the digital sequence applied to the device, […] Read More >
Hardware Accelerators for Data Structures
We developed the first parallel architecture for a dynamic data-structure for approximate membership (i.e., a Bloom filter that also supports deletions). UNMET NEEDThe filter architecture supports multiple operations per cycle while preserving sequential order with a fixed and stable throughput that does not depend on the type of operations, the workload, or how populated the […] Read More >
Incidental Detection of Colon Cancer Using AI Analysis of Abdominal CT Scans
Detecting colon cancer in general abdominal CT scans, i.e. without bowel emptying performed before colonoscopy, is extremely challenging. With nowadays technology, it is not possible to automatically detect cancer in the large intestine without prior preparation of the intestine as required in colonoscopy. A study has revealed that more than 20% of malignant findings in […] Read More >
Cost-Effective Distributed Acoustic Sensing
Optical fibers are widely known in their ability to transfer huge amounts of data efficiently and cost-effectively. As the backbone of our communications networks, optical fibers are everywhere: underground or aerial in our streets, underwater in the oceans, along highways, railways, pipelines, power lines and fences, in campuses and in data centers. Optical fibers are […] Read More >
A Lensless Polarization Camera
Polarization imaging is a technique that creates a pixel-map of the polarization state in a scene. Although invisible to the human eye (and for most conventional cameras), polarization can assist various sensing and computer vision tasks. Existing polarization cameras acquire the additional modality using either spatial or temporal multiplexing, which increases the camera volume, weight, […] Read More >
LWIR / FIR / THz Detectors and Sources For High Sensitivity Remote Sensing
The discoveries of novel materials and physical phenomena continuously drive technological advancements and their applications. So is the case for Terahertz (THz) optoelectronics, operating roughly in the frequency range of f≈0.5-35THz. In this spectral range radiation penetrates through opaque materials without the risk of ionization, making THz radiation highly attractive for technological applications, such as […] Read More >
An On-Chip Sub-THz Scalable Beam Steering Antenna Array
We present a novel way of distributing signal to an antenna array without the use of power dividers. In our proposed method, we use the leaked fundamental from a non-linear harmonic generator circuit as an input to drive the next element in the chain. As a proof of concept, we show this distribution method at […] Read More >
Broad-Bandwidth, Long-Haul, Underwater Fiber-Optic Sensing System
An optical fiber can be described as a glass pipeline which can guide light over great distances with very little loss. In addition to being the central communication channel of the information era, it has another very interesting application. This application is called distributed sensing. By launching into the fiber specially designed pulse sequences of […] Read More >
METHOD FOR GENERATION OF CONTROLLED THz WAVES
We present a method for the generation of THz pulses with tailored temporal shape from nonlinear metasurfaces. The method is based on single-cycle THz emission by the metasurface inclusions. We show that the spatial amplitude and phase structure of the nonlinear response is mapped to the temporal shape of pulses emitted at certain angles. We […] Read More >
