An optical coating like no other
For more than a century, optical coatings have been used to better reflect certain wavelengths of light from lenses and other devices or, conversely, to better transmit certain wavelengths through them. For example, the coatings on tinted eyeglasses.....»»
Precision coating boosts nanomedicine
A study published in the International Journal of Nanotechnology has looked at the controlled synthesis and coating of magnetic nanoparticles (MNPs), specifically using oleic acid (OA) and polyethylene glycol (PEG). These two well-studied polymers ca.....»»
Process for the optical analysis of trace gases optimized
Laser-based absorption spectroscopy is an important method for determining the concentration of gas components in a sample. Modern devices are highly specialized for detecting very specific gases, such as trace gases in the atmosphere, in combustion.....»»
Multi-point temperature measurements in packed beds using phosphor thermometry and ray tracing simulations
A team of researchers has proposed an indirect optical method for determining internal temperatures of opaque packed beds based on phosphor thermometry. This method enables simultaneous multi-point measurements using an image-based separation of the.....»»
Prescription lenses for Apple Vision Pro are cheaper than expected
Apple has announced two lens families for its forthcoming Apple Vision Pro, a Reader option and full Zeiss prescription lenses, both for considerably less than predicted.A Zeiss optical insert lens, at least similar to the ones being prepared for Vis.....»»
Researchers develop efficient and accessible single-molecule platform for detecting various amylin species
A research team led by The Hong Kong University of Science and Technology (HKUST) has developed an optical plasmonic tweezer-controlled Surface-Enhanced Raman Spectroscopy (SERS) platform that utilizes on-and-off control of light to probe various amy.....»»
What to do if your iPhone 15 is peeling on the edge of the back glass
There are spotty reports that back-glass coating is peeling off some iPhone 15 units — but the actual issue is slightly less dramatic than that. Here's what to do if you see it on yours.iPhone 15 pro peeling - image credit mr_rakue on RedditReports.....»»
The use of deep learning for phase recovery
Light, as an electromagnetic field, has two essential components: amplitude and phase. However, optical detectors, usually relying on photon-to-electron conversion (such as charge-coupled device sensors and the human eye), cannot capture the phase of.....»»
Geometric origin of intrinsic dark counts in superconducting nanowire single-photon detectors
In a recent leap forward for quantum computing and optical technologies, researchers have uncovered an important aspect of photon detection. Superconducting nanowire single-photon detectors (SNSPDs), pivotal in quantum communication and advanced opti.....»»
Enantiomeric lead-free double perovskites rationally designed by achiral-chiral cation intercalation
Chiral optical materials have attracted great attention in multiple disciplines due to their wide application value in fields such as remote sensing, three-dimensional display, information communication, and optical information storage. With the stro.....»»
Engineers pair laser light to crystal lattice vibrations to enhance optical properties of 2D material
Engineers at Columbia University and theoretical collaborators at the Max Planck for the Structure and Dynamics of Matter have found that pairing laser light to crystal lattice vibrations can enhance the nonlinear optical properties of a layered 2D m.....»»
All-optical object identification and three-dimensional reconstruction based on optical computing metasurface
As object identification and three-dimensional (3D) reconstruction techniques become essential in various reverse engineering, artificial intelligence, medical diagnosis, and industrial production fields, there is an increasing focus on seeking vastl.....»»
Generation of lossy mode resonances using perovskite nanofilms
In recent research, scientists have unlocked the potential of a remarkable material called perovskite to revolutionize the world of optical sensing. Their study is published in the journal Opto-Electronic Advances......»»
Mineral coatings could enable shelf-stable mRNA therapies
A protective mineral coating identified by University of Wisconsin–Madison biomedical engineering researchers could allow powerful messenger RNA therapeutics like COVID-19 vaccines to be stored at room temperature, making them more accessible to lo.....»»
Research team develops optical technique for simultaneously producing and shaping gigahertz burst pulses
The generation and manipulation of high-repetition pulses hold great promise across various applications, including high-speed photography, laser processing, and acoustic wave generation. Gigahertz (GHz) burst pulses, with intervals ranging from ~0.0.....»»
Wearable sensors for advanced plant phenotyping
In response to increasing global food demands, improving crop yields through efficient phenotyping is imperative. Optical imaging-based phenotyping has markedly progressed plant breeding and crop management, yet encounters limitations in spatial reso.....»»
Addressing post-harvest storage issues of Shiranui mandarins
Citrus packed and marketed in the United States is generally washed and sanitized on a commercial packing line for decay control, food safety, and appearance reasons. The purpose of a new study was to evaluate the use of different coating protocols a.....»»
Newly developed material gulps down hydrogen, spits it out, protects fusion reactor walls
University of Wisconsin–Madison engineers have used a spray coating technology to produce a new workhorse material that can withstand the harsh conditions inside a fusion reactor......»»
A new method to fabricate optical devices that more closely match their design specifications
Photolithography involves manipulating light to precisely etch features onto a surface, and is commonly used to fabricate computer chips and optical devices like lenses. But tiny deviations during the manufacturing process often cause these devices t.....»»
New technology for microscopy analysis provides precise maps of cell membrane lipid rafts
A research team led by Professor Dae-ha Seo at the Department of Physics and Chemistry, Daegu Gyeongbuk Institute of Science and Technology, has successfully developed a new technology for optical microscopy analysis—known as lipid-MAP—which can.....»»
Conjoined "racetracks" make new optical device possible
When we last checked in with Caltech's Kerry Vahala three years ago, his lab had recently reported the development of a new optical device called a turnkey frequency microcomb that has applications in digital communications, precision time keeping, s.....»»