Electronic Optical Materials
20 Results were found on Technologies
Sub Category Name
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 frequencies Need and Advantages Although 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 […] 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
Technology This 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 […] Read More >
Microelectromechanical Systems (Mems) Sensors and Actuators
Technology My 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 […] Read More >
High Speed Photonic Digital-To-Analog Conversion
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, and by […] Read More >
Direction of Arrival Deception Using Metasurfaces
The invention of radars was soon followed by extensive research and development of counter measures, the most well-known being the invention of stealth technology. By employing special geometric designs and carefully selected materials, a reduction of the target’s radar cross section and the resulting backscattered energy was successfully achieved, substantially reducing distances between the radar […] Read More >
LWIR / FIR / THz Detectors and Sources For High Sensitivity Remote Sensing
MIR-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 MIR-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 MIR-THz […] 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 >
