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Categories: Energy: Technology, Physics: Optics

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Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Engineering: Nanotechnology Physics: General Physics: Optics
Published

Polaritons open up a new lane on the semiconductor highway      (via sciencedaily.com)     Original source 

On the highway of heat transfer, thermal energy is moved by way of quantum particles called phonons. But at the nanoscale of today's most cutting-edge semiconductors, those phonons don't remove enough heat. That's why researchers are focused on opening a new nanoscale lane on the heat transfer highway by using hybrid quasiparticles called 'polaritons.'

Physics: Acoustics and Ultrasound Physics: Optics
Published

Soundwaves harden 3D-printed treatments in deep tissues      (via sciencedaily.com)     Original source 

Engineers have developed a bio-compatible ink that solidifies into different 3D shapes and structures by absorbing ultrasound waves. Because the material responds to sound waves rather than light, the ink can be used in deep tissues for biomedical purposes ranging from bone healing to heart valve repair.

Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Physics
Published

Bowtie resonators that build themselves bridge the gap between nanoscopic and macroscopic      (via sciencedaily.com)     Original source 

Two nanotechnology approaches converge by employing a new generation of fabrication technology. It combines the scalability of semiconductor technology with the atomic dimensions enabled by self-assembly.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Engineering: Graphene Physics: Optics
Published

Chemists create organic molecules in a rainbow of colors      (via sciencedaily.com)     Original source 

Chemists have now come up with a way to make molecules known as acenes more stable, allowing them to synthesize acenes of varying lengths. Using their new approach, they were able to build molecules that emit red, orange, yellow, green, or blue light, which could make acenes easier to deploy in a variety of applications.

Physics: Optics
Published

Breakthrough in photoactivatable nanomedicine for the treatment of age-related macular degeneration      (via sciencedaily.com)     Original source 

Researchers have developed a light-activatable prodrug nanomedicine for age-related macular degeneration (AMD) therapy. Through the intravenous injection of the nanomedicine and application of light irradiation to diseased eyes, anti-angiogenic and photodynamic combination therapy can be activated, offering a minimally invasive alternative for the treatment of AMD and other ocular disorders characterized by abnormal blood vessel growth.

Physics: Optics
Published

Laser additive manufacturing: Listening for defects as they happen      (via sciencedaily.com)     Original source 

Researchers have resolved a long-standing debate surrounding laser additive manufacturing processes with a pioneering approach to defect detection.

Physics: Optics
Published

A farsighted approach to tackle nearsightedness      (via sciencedaily.com)     Original source 

As humans age, our eyes adjust based on how we use them, growing or shortening to focus where needed, and we now know that blurred input to the eye while the eye is growing causes myopia. It is so specific that the eye grows exactly to compensate for the amount and the direction of blur. Researchers have built a high-frequency ultrasonography system to measure eye size and how quickly eyes grow to better understand myopia and its contributing factors.

Physics: General Physics: Optics
Published

Optical data storage breakthrough      (via sciencedaily.com)     Original source 

Physicists have developed a technique with the potential to enhance optical data storage capacity in diamonds. This is possible by multiplexing the storage in the spectral domain.

Chemistry: General Energy: Technology Space: Exploration Space: General Space: The Solar System
Published

Tracking undetectable space junk      (via sciencedaily.com)     Original source 

Satellite and spacecraft operators may finally be able to detect small pieces of debris orbiting Earth using a new approach. Colliding pieces of space debris emit electric signals that could help track small debris littering Earth's orbit, potentially saving satellites and spacecraft.

Chemistry: Biochemistry Energy: Technology Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Quantum physics: Superconducting Nanowires Detect Single Protein Ions      (via sciencedaily.com)     Original source 

An international research team has achieved a breakthrough in the detection of protein ions: Due to their high energy sensitivity, superconducting nanowire detectors achieve almost 100% quantum efficiency and exceed the detection efficiency of conventional ion detectors at low energies by a factor of up to a 1,000. In contrast to conventional detectors, they can also distinguish macromolecules by their impact energy. This allows for more sensitive detection of proteins and it provides additional information in mass spectrometry.

Engineering: Graphene Offbeat: Computers and Math Offbeat: General Physics: Optics
Published

Tiny electromagnets made of ultra-thin carbon      (via sciencedaily.com)     Original source 

Graphene, that is extremely thin carbon, is considered a true miracle material. An international research team has now added another facet to its diverse properties with new experiments: Experts fired short terahertz pulses at micrometer-sized discs of graphene, which briefly turned these minuscule objects into surprisingly strong magnets. This discovery may prove useful for developing future magnetic switches and storage devices.

Physics: Optics
Published

'Doughnut' beams help physicists see incredibly small objects      (via sciencedaily.com)     Original source 

A new laser-based technique can create images of structures too tiny to view with traditional microscopes, and without damaging them. The approach could help scientists inspect nanoelectronics, including the semiconductors in computer chips.

Computer Science: Artificial Intelligence (AI) Engineering: Robotics Research Physics: Optics
Published

A color-based sensor to emulate skin's sensitivity      (via sciencedaily.com)     Original source 

In a step toward more autonomous soft robots and wearable technologies, researchers have created a device that uses color to simultaneously sense multiple mechanical and temperature stimuli.

Computer Science: Virtual Reality (VR) Offbeat: Computers and Math Offbeat: General Physics: Optics
Published

To help autonomous vehicles make moral decisions, researchers ditch the 'trolley problem'      (via sciencedaily.com)     Original source 

Researchers have developed a new experiment to better understand what people view as moral and immoral decisions related to driving vehicles, with the goal of collecting data to train autonomous vehicles how to make 'good' decisions. The work is designed to capture a more realistic array of moral challenges in traffic than the widely discussed life-and-death scenario inspired by the so-called 'trolley problem.'

Chemistry: Biochemistry Computer Science: Artificial Intelligence (AI) Energy: Technology Mathematics: Modeling
Published

Scientists use A.I.-generated images to map visual functions in the brain      (via sciencedaily.com)     Original source 

Researchers have demonstrated the use of AI-selected natural images and AI-generated synthetic images as neuroscientific tools for probing the visual processing areas of the brain. The goal is to apply a data-driven approach to understand how vision is organized while potentially removing biases that may arise when looking at responses to a more limited set of researcher-selected images.

Energy: Alternative Fuels Energy: Technology Environmental: General
Published

Smart microgrids can restore power more efficiently and reliably in an outage      (via sciencedaily.com)     Original source 

A new AI model that optimizes the use of renewables and other energy sources outperforms traditional power restoration techniques for islanded microgrids, a new paper shows. 

Chemistry: Inorganic Chemistry Computer Science: Quantum Computers Energy: Technology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Researchers show an old law still holds for quirky quantum materials      (via sciencedaily.com)     Original source 

Long before researchers discovered the electron and its role in generating electrical current, they knew about electricity and were exploring its potential. One thing they learned early on was that metals were great conductors of both electricity and heat. And in 1853, two scientists showed that those two admirable properties of metals were somehow related: At any given temperature, the ratio of electronic conductivity to thermal conductivity was roughly the same in any metal they tested. This so-called Wiedemann-Franz law has held ever since -- except in quantum materials. Now, a theoretical argument put forth by physicists suggests that the law should, in fact, approximately hold for one type of quantum material, the cuprate superconductors.

Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

What was thought of as noise, points to new type of ultrafast magnetic switching      (via sciencedaily.com)     Original source 

Researchers discover a new type of ultrafast magnetic switching by investigating fluctuations that normally tend to interfere with experiments as noise.

Chemistry: Biochemistry Physics: Optics
Published

Eye-safe laser technology to diagnose traumatic brain injury      (via sciencedaily.com)     Original source 

Researchers have designed and developed a novel diagnostic device to detect traumatic brain injury (TBI) by shining a safe laser into the eye.

Energy: Technology Physics: General Physics: Optics
Published

The secret life of an electromagnon      (via sciencedaily.com)     Original source 

Scientists have revealed how lattice vibrations and spins talk to each other in a hybrid excitation known as an electromagnon. To achieve this, they used a unique combination of experiments on an X-ray free electron laser. Understanding this fundamental process at the atomic level opens the door to ultrafast control of magnetism with light.