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UrduStudy by researchers at the University of Campinas published in Physical Review Letters discusses both light dispersion by vibrations inside the device and light dissipation to the exterior, an aspect rarely studied hitherto
Tag: OPTICS
Dresden researchers develop new strategy for efficient OLED active matrix displays
In the group of Prof. Karl Leo, physicists, material scientists and engineers are working jointly on the development of novel organic materials and devices for high performance, flexible and possibly even biocompatible electronics and optoelectronics of the future. Increasing the…
Intriguing particles emerge when two photons couple
Researchers exploring the interactions between light particles, photons and matter find that optical microresonators host quasiparticles made by two photons.
Researchers detects chiral structures using vortex light
Recently, the Laboratory of Micro and Nano Engineering, School of Engineering Science, University of Science and Technology of China (USTC) has made important progress in the field of structural chirality detection research using vortex light and found that photon orbital…
Plastic solar cells combine high-speed optical communication with indoor energy harvesting
Around the world there are currently more than 18 billion internet-connected mobile devices. In the next 10 years, anticipated growth in the Internet of Things (IoT) and in machine-type communication in general, will lead to a world of hundreds of…
Virtually unlimited solar cell experiments
Researchers at Osaka University use machine learning to design and virtually test molecules for organic solar cells, which can lead to higher efficiency functional materials for renewable energy applications
Bottling the world’s coldest plasma
Laser-cooled plasma-in-a-bottle could answer questions about the sun, fusion power
Second order optical merons, or light pretending to be a ferromagnet
The scientists have demonstrated how to structure light such that its polarization behaves like a collective of spins in a ferromagnet forming half-skyrmion (also known as merons). To achieve this the light was trapped in a thin liquid crystal layer…
Through the looking glass: Artificial ‘molecules’ open door to ultrafast polaritonic devices
Researchers from Skoltech and the University of Cambridge have shown that polaritons, the quirky particles that may end up running the quantum supercomputers of the future, can form structures behaving like molecules – and these “artificial molecules” can potentially be…
Considering disorder and cooperative effects in photon escape rates from atomic gases
Investigating more complex models of photon escape rates from cold atomic gases could help researchers learn more about light-matter interactions
From microsaws to nanodrills: laser pulses act as subtle machining tools
Industrial-grade materials processing on the sub-micron scale is enabled by spatially structured ultrashort laser pulses
New type of bone cell could reveal targets for osteoporosis treatment
Researchers at the Garvan Institute of Medical Research have discovered a new type of bone cell that may reveal new therapeutic approaches for osteoporosis and other skeletal diseases. The new cells, which the researchers term ‘osteomorphs’, are found in the…
NTU scientists develop laser system that generates random numbers at ultrafast speeds
An international team of scientists has developed a system that can generate random numbers over a hundred times faster than current technologies, paving the way towards faster, cheaper, and more secure data encryption in today’s digitally connected world. The random…
Light unbound: Data limits could vanish with new optical antennas
New research throws wide open the amount of information that can be simultaneously transmitted by a single light source
Buckyballs on DNA for harvesting light
Supramolecular structure boosts efficiency of light harvesting for solar cells
Paul Alivisatos and Michael Grätzel win the Frontiers of Knowledge Award in Basic Sciences
The award has gone in this thirteenth edition to the two scientists who developed new nanomaterials with applications in solar energy and cutting-edge electronics
Accelerator physics: Experiment reveals new options for synchrotron light sources
An international team has shown through a sensational experiment how diverse the possibilities for employing synchrotron light sources are.
Optical frequency combs found a new dimension
Periodic pulses of light forming a comb in the frequency domain are widely used for sensing and ranging. The key to the miniaturisation of this technology towards chip-integrated solutions is the generation of dissipative solitons in ring-shaped microresonators. Dissipative solitons…
Seeing stable topology using instabilities
Scientists decipher fingerprints of topological phases of light in nonlinear optical instabilities
OIDA Virtual Workshop on Developments in Co-Packaging Technologies for Data Centers
Highly-anticipated event will address integration of photonic functionality into data center roadmaps
Researchers develop tiny sensor for measuring subtle pressure changes inside the body
Advanced polymer optical sensor is designed to be implanted for long-term health monitoring
3D microscopy clarifies understanding of body’s immune response to obesity
CHAMPAIGN, Ill. — Researchers who focus on fat know that some adipose tissue is more prone to inflammation-related comorbidities than others, but the reasons why are not well understood. Thanks to a new analytical technique, scientists are getting a clearer…
Photosynthetic bacteria-based cancer optotheranostics
Cancer is one of the most thought-provoking healthcare problems throughout the world. The development of therapeutic agents with highly selective anti-cancer activities is increasingly attractive due to the lack of tumor selectivity of conventional treatments. Scientists at Japan Advanced Institute…
A sharper look at the interior of semiconductors
A high-resolution imaging technique can be used to investigate materials in a non-destructive manner and with nanometer precision
A performance leap for Graphene modulators in next generation datacom and telecom
Over the past years, global data traffic has experienced a boom, with over 12.5 billion connected devices all over the world. The current world-wide deployment of the 5G telecommunications standard is triggering the need for smaller devices with enhanced performances,…
Ultrabright dots see beyond skin deep
A polymer that is custom designed to produce light that penetrates murky environments has shown promise in bioimaging trials, where it can detect nano-sized particles underneath the surface of realistic tissue models. Recent studies have demonstrated that fluorescent probes —…
U.S. Congressional Optics and Photonics Caucus to host virtual launch event 24 February 2021
Caucus Aims to Increase Investments and Advance Policies Supporting Light-based Technologies
Light used to detect quantum information stored in 100,000 nuclear quantum bits
Researchers have found a way to use light and a single electron to communicate with a cloud of quantum bits and sense their behaviour, making it possible to detect a single quantum bit in a dense cloud. The researchers, from…
The light side of the Force: Creating a metal with laser light
From smartphones to computer processors – much of the technology we nowadays use heavily features transistors. They connect many of the different materials that make up these devices, and are essential for any kind of data processing. Because they are…
Strathclyde physics professor wins international award for contribution to optics
A Professor in the Department of Physics at the University of Strathclyde has received a prestigious international award in recognition of his contribution to the field of optics. Professor Martin Dawson, Director of Research at Strathclyde’s Institute of Photonics and…
Capturing free-space optical light for high-speed wifi
Plasmonic speed enhancements previously constrained to nanoscale phenomena are replicated on macroscopic devices
CLEO 2021 to engage global audience with all-virtual format
The premier conference on lasers and electro-optics to showcase latest innovations and interactive virtual exhibit
Highly efficient metasurface poised to improve communication and biosensing
Nanostructured thin film works over an unprecedented centimeter-scale area
Vibrating 2D materials
Current electronic components in computers, mobile phones and many other devices are based on microstructured silicon carriers. However, this technology has almost reached its physical limits and the smallest possible structure sizes. Two-dimensional (2D) materials are therefore being intensively researched.…
Scientists create liquid crystals that look a lot like their solid counterparts
A team at the University of Colorado Boulder has designed new kinds of liquid crystals that mirror the complex structures of some solid crystals–a major step forward in building flowing materials that can match the colorful diversity of forms seen…
Silicon chip provides low cost solution to help machines see the world clearly
Researchers in Southampton and San Francisco have developed the first compact 3D LiDAR imaging system that can match and exceed the performance and accuracy of most advanced, mechanical systems currently used. 3D LiDAR can provide accurate imaging and mapping for…
Evolution of networking, photonics and artificial intelligence among topics for OFC 2021 Plenary
Luminaries to headline the premier event for optical communications, telecom and data center optics
Object transparency reduces human perception of three-dimensional shapes
Transparent objects look flattened
THz spectroscopy tracks electron solvation in photoionized water
THz wave absorption signal with a unique two-step decay characteristic in the time domain was demonstrated, revealing fundamental aspects of the charge transport process in water.
Physicists finesse the storing of light to create rainbows of colour
Physicists at the University of Bath have found a way to use resonance to harness the energy of light more effectively inside microresonators
3D-printed spectrometer on a 100 x100 μm² footprint
Femtosecond direct laser writing as a 3D printing technology has been one of the key building blocks for miniaturization in modern times. It has transformed the field of complex microoptics since the early 2000s. Especially medical engineering and consumer electronics…
Efficiency limits of next-generation hybrid photovoltaic-thermal solar technology
Solar energy is one of the most abundant renewable energy sources, and effective solar technologies have great potential to alleviate the grand challenges of rising global energy demands, while reducing associated emissions. Solar energy is capable of satisfying the electrical…
Recent Progress of Skin-integrated Electronics for Intelligent Sensing
Detection of biophysical and biochemical signals deep in the body through the body surface is critical for health care. Current clinically available monitoring systems typically rely on heavy equipment that are not suitable for long-term and real-time monitoring of patients.…
Silicon waveguides move us closer to faster, light-based logic circuits
For decades, the speed of our computers has been growing at a steady pace. The processor of the first IBM PC released 40 years ago, operated at a rate of roughly 5 million clock cycles per second (4.77 MHz). Today,…
Radiative cooling and solar heating from one system, no electricity needed
Study describes passive cooling system that aims to help impoverished communities, reduce cooling and heating costs, lower CO2 emissions
‘Multiplying’ light could be key to ultra-powerful optical computers
An important class of challenging computational problems, with applications in graph theory, neural networks, artificial intelligence and error-correcting codes can be solved by multiplying light signals, according to researchers from the University of Cambridge and Skolkovo Institute of Science and…
Breakthrough in quantum photonics promises a new era in optical circuits
Method to enable quantum optical circuits that use photons–heralds a new future for secure communication and quantum computing
Switching nanolight on and off
Columbia researchers discover a new way to program light on an ultra-small scale
Scientists optimized technology for production of optical materials for microelectronics
Scientists of Far Eastern Federal University (FEFU) have advanced the technology of high-speed sintering for optical ceramics (Nd3+:YAG), i.e. active elements generating laser emission in the near-infrared wavelength range (1.06 μm) for cutting the edge microelectronics and medicine. The researchers…
Imaging the first moments of a body plan emerging in the embryo
WOODS HOLE, Mass. — Egg cells start out as round blobs. After fertilization, they begin transforming into people, dogs, fish, or other animals by orienting head to tail, back to belly, and left to right. Exactly what sets these body…