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UrduRealizing the potential of self-driving cars hinges on technology that can quickly sense and react to obstacles and other vehicles in real time. Engineers from The University of Texas at Austin and the University of Virginia created a new first-of-its-kind…
Tag: OPTICS
Electrons riding a double wave
Research team presents a new type of particle accelerator
Thin is now in to turn terahertz polarization
Rice lab’s discovery of ‘magic angle’ builds on its ultrathin, highly aligned nanotube films
Opening up possibilities with open-top optofluidic device
Co-planar optoelectrowetting device allows for droplet access from above that increases microfluidic input/output system integration configurations while achieving faster droplet speeds
Out of thick air: Transforming CO2 into light-emitting carbon
Breakthrough by uOttawa researchers sees creation of light-emitting solid carbon from CO2 gas
New research may revolutionise cataract treatment
Breakthrough by experts supports drug therapy as alternative to surgery
Thermoplasmonic sensor for the detection of phase transitions in nanoscale materials
A joint paper by Kazan Federal University and King’s College London appeared in ACS Photonics
Silicon chips combine light and ultrasound for better signal processing
The continued growth of wireless and cellular data traffic relies heavily on light waves. Microwave photonics is the field of technology that is dedicated to the distribution and processing of electrical information signals using optical means. Compared with traditional solutions…
Laser light makes a comeback (literally)
Researchers from Osaka University discover phenomenon of reciprocating propagation of laser pulse intensity in free space
Complex shapes of photons to boost future quantum technologies
As the digital revolution has now become mainstream, quantum computing and quantum communication are rising in the consciousness of the field. The enhanced measurement technologies enabled by quantum phenomena, and the possibility of scientific progress using new methods, are of…
UMD team demonstrates swarm of photons that somersault in lockstep
Spinning or rotating objects are commonplace, from toy tops, fidget spinners, and figure skaters to water circling a drain, tornadoes, and hurricanes. In physics, there are two kinds of rotational motion: spin and orbital. Earth’s motion in our solar system…
A new way to make AR/VR glasses
University of Rochester researchers combine freeform optics and a metasurface to avoid ‘bug eyes’
Applying UV light to common disinfectants makes them safer to use
Over 400 common disinfectants currently in use could be made safer for people and the environment and could better fight the COVID-19 virus with the simple application of UVC light, a new study from the University of Waterloo shows. Benzalkonium…
Reducing blue light with a new type of LED that won’t keep you up all night
To be more energy efficient, many people have replaced their incandescent lights with light-emitting diode (LED) bulbs. However, those currently on the market emit a lot of blue light, which has been linked to eye troubles and sleep disturbances. Now,…
Germany grants the Optics University Center and Campus at Leibniz University Hannover
German Science Council recommends an investment of 54.2 million Euro to build the research building OPTICUM
An easy-to-use platform is a gateway to AI in microscopy
Software using artificial intelligence, AI, is revolutionizing how microscopy images are analysed. For instance, AI can be used to detect features in images (i.e., tumours in biopsy samples) or improve the quality of images by removing unwanted noise. However, non-experts…
Transport phenomena at the nanoscale
Transient grating spectroscopy is an elegant method that uses two laser pulses to activate a medium by creating an interference pattern made of parallel stripes of excitations that can be thermal, electronic, magnetic or even structural. The modulation depth of…
Study could lead to production of more efficient optoelectronic devices
Resonant-tunneling diodes are used in high-frequency oscillators, wave emitters and detectors, logic gates, photodetectors, and optoelectronic circuits. The study was a collaboration between Brazilian and German researchers.
Boosting fiber optics communications with advanced quantum-enhanced receiver
Technology could avert capacity crunch by enhancing bandwidth while reducing energy consumption
Combining light, superconductors could boost AI capabilities
Optoelectronic integration at low temperatures using superconductors may be easier than at room temperatures using semiconductors.
Found: A fast and accurate way to optimize fusion energy devices
PPPL develops a model once thought to be impossible for delivering radio waves to heat tokamak plasmas.
New nanoscale device for spin technology
Spin waves could unlock the next generation of computer technology, a new component allows physicists to control them
Two research projects to be receive funds from Samsung Science & Technology Foundation
DGIST announced that Prof. June.M. Kwak, and Prof. Chang-Hee Cho are selected for the research funding program sponsored by ‘Samsung Science & Technology Foundation’. Prof. Kwak was selected for the Basic Science Research and will be carrying out the project…
Keeping it fresh: New AI-based strategy can assess the freshness of beef samples
Scientists combine spectroscopy and deep learning in an efficient technique for detecting spoiled meat
2D materials for conducting hole currents from grain boundaries in perovskite solar cells
Grain boundaries (GBs) in PSCs have been found to be detrimental to the photovoltaic performance of the devices. Numerous papers reported that the defects in perovskite GBs should be passivated by suitable materials, such as quaternary ammonium halide, fullerene derivatives…
Smart glass has a bright future
Light modulation via optical MEMS microshutter and micromirror arrays could provide huge energy savings
Researchers realize synthetic gauge fields in single optomechanical resonator
The research team led by Prof. GUO Guangcan and Dr. DONG Chunhua from the University of Science and Technology of China realized synthetic gauge fields in a single optomechanical resonator by controlling geometric phase with the multimode interaction in the…
Spin-to-charge conversion achieves 95% overall qubit readout fidelity
The team led by Professor DU Jiangfeng and Professor WANG Ya from the Chinese Academy of Sciences (CAS) Key Laboratory of Microscale Magnetic Resonance of the University of Science and Technology of China put forward an innovative spin-to-charge conversion method…
Development of a broadband mid-infrared source for remote sensing
A research team of the National Institutes of Natural Sciences, National Institute for Fusion Science and Akita Prefectural University have successfully demonstrated a broadband mid-infrared (MIR) source with a simple configuration. This light source generates highly-stable broadband MIR beam at…
NTU Singapore scientists design ‘smart’ device to harvest daylight
Device can be used to illuminate dark, underground spaces in daytime
NIST ‘agricomb’ measures multiple gas emissions from … cows
After the optical frequency comb made its debut as a ruler for light , spinoffs followed, including the astrocomb to measure starlight and a radar-like comb system to detect natural gas leaks . And now, researchers have unveiled the “agricomb”…
Why are optical refractive indices so small?
Pink Floyd’s Dark Side of the Moon cover, voted the greatest classical rock album of all time, intended to portray the prism and dispersion of light into a rainbow as a certain metaphorical symbolism and a light show that was…
Sussex scientists develop ultra-thin terahertz source
Physicists from the University of Sussex have developed an extremely thin, large-area semiconductor surface source of terahertz, composed of just a few atomic layers and compatible with existing electronic platforms. Terahertz sources emit brief light pulses oscillating at ‘trillion of…
Topological protection of entangled two-photon light in photonic topological insulators
In a joint effort, researchers from the Humboldt-Universität (Berlin), the Max Born Institute (Berlin) and the University of Central Florida (USA), have revealed the necessary conditions for the robust transport of entangled states of two-photon light in photonic topological insulators,…
Laser lights the way
A new way to observe laser interactions could improve laser-based manufacture
Electromagnetic fields of nanostructures visualized in 3D for the first time
Scientists from Graz, Austria, succeeded for the first time in visualizing temporal distortions of the atomic lattice on the surface of materials in three dimensions.
Skoltech scientists use machine learning to help doctors find veins for no-fuss blood draws
Researchers from Skoltech have developed an early prototype of a medical imaging system that uses neural networks to analyze near-infrared images of veins and project a venous pattern onto a patient’s body – this may make blood draws much easier…
Sorting out nanodiamonds with fluorescent centers
Scientists have developed a method to use lasers to control the movement of nanodiamonds with fluorescent centers. Scientists have long been working on improving their ability to use lasers to move small objects without actually touching them. This method of…
Plasmon-coupled gold nanoparticles useful for thermal history sensing
Researchers have demonstrated that stretching shape-memory polymers embedded with clusters of gold nanoparticles alters their plasmon-coupling, giving rise to desirable optical properties. One potential application for the material is a sensor that relies on optical properties to track an object…
Japan-Germany international joint experiment on space optical communication
NICT’s optical ground station successfully received downlink light from DLR’s small satellite-mounted optical terminal (OSIRISv1)
The case of the cloudy filters: Solving the mystery of the degrading sunlight detectors
More than 150 years ago, the Sun blasted Earth with a massive cloud of hot charged particles. This plasma blob generated a magnetic storm on Earth that caused sparks to leap out of telegraph equipment and even started a few…
Researchers capture first 3D super-resolution images in living mice
New STED technique enables deep-tissue imaging, reveals subcellular dynamics of neurons
Latest innovations in optics and photonics on display at 3rd Virtual OIDA Technology Showcase
Global Event to Feature Five Technology Themes and 27 Presentations by Industry Experts
NIST team compares 3 top atomic clocks with record accuracy over both fiber and air
In a significant advance toward the future redefinition of the international unit of time, the second, a research team led by the National Institute of Standards and Technology (NIST) has compared three of the world’s leading atomic clocks with record…
Optical fiber could boost power of superconducting quantum computers
The secret to building superconducting quantum computers with massive processing power may be an ordinary telecommunications technology – optical fiber. Physicists at the National Institute of Standards and Technology (NIST) have measured and controlled a superconducting quantum bit (qubit) using…
Medical imaging dimensionality mismatch
Researchers investigated observer performance for 2D and 3D image localization tasks; they found that when observers scrolled through a 3D image, there was little evidence of integrating information in the scrolling direction
Recurrent neural network advances 3D fluorescence imaging
Rapid 3D microscopic imaging of fluorescent samples has gained increasing importance in numerous applications in physical and biomedical sciences. Given the limited axial range that a single 2D image can provide, 3D fluorescence imaging often requires time-consuming mechanical scanning of…
Taking microelectronics to a new dimension
Metallic microstructures are the key components in almost every current or emerging technology. For example, with the next wireless communication standard (6G) being established, the need for advanced components and especially antennas is unbroken. The drive to yet higher frequencies…
Discovery of non-toxic semiconductors with a direct band gap in the near-infrared
New compound may replace toxic mercury cadmium telluride and gallium arsenide in near-infrared devices
Diamond color centers for nonlinear photonics
Researchers at the University of Tsukuba use color center defects in diamonds to demonstrate second-order nonlinear optical effects, which may allow for extremely fast all-optical communication and computation devices.