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.....»»
Researchers manufacture first-ever droplet-etched quantum dots that glow in C-band optical light
Paderborn researchers from the Department of Physics and the Institute for Photonic Quantum Systems (PhoQS) have succeeded in manufacturing quantum dots—nanoscopic structures where the material's quantum properties come into play—that glow in the.....»»
Researchers demonstrate direct comparison of spin-squeezed optical lattice clocks at record precision level
Although today's best optical atomic clocks can be used to make extremely precise measurements, they are still limited by the noise from the spin statistics of the many atoms they interrogate, known as quantum projection noise (QPN). But by leveragin.....»»
Spectropolarimetric imaging: A magical way to get multidimensional information
In the world of optics, capturing high-dimensional optical information is crucial for understanding and characterizing various targets across different scenes. This includes important aspects like irradiance, spectrum, space, polarization, and phase......»»
A new dynamic probe of electric forces between molecules
Molecules in water and other polar media are subject to strong electric forces. Such forces originate from their liquid environment, which at ambient temperature undergoes ultrafast structural fluctuations. A new method maps the optical absorption of.....»»
Researchers demonstrate noise-free communication with structured light
The patterns of light hold tremendous promise for a large encoding alphabet in optical communications, but progress is hindered by their susceptibility to distortion, such as in atmospheric turbulence or in bent optical fiber......»»
Superlubricity coating could reduce economic losses from friction and wear
Scientists at the Department of Energy's Oak Ridge National Laboratory have invented a coating that could dramatically reduce friction in common load-bearing systems with moving parts, from vehicle drive trains to wind and hydroelectric turbines. It.....»»
Shrinking endoscopes with meta-optical fibers
Ultra-compact, agile endoscopes with a large field of view (FoV), long depth of field (DoF), and short rigid tip length are essential for developing minimally invasive operations and new experimental surgeries. As these fields develop, the requiremen.....»»
Revolutionizing optical control with topological edge states
Nanophotonics and topology have generated significant interest due to the unique properties they offer. One area of focus is the investigation of topological edge states (TESs). These states have captured widespread attention because they are very re.....»»
Optical memristors review: Shining a light on neuromorphic computing
AI, machine learning, and ChatGPT may be relatively new buzzwords in the public domain, but developing a computer that functions like the human brain and nervous system—both hardware and software combined—has been a decades-long challenge. Engine.....»»
An optical method to polarize free electrons in a laboratory setting
Polarized electrons are electrons in which spins have a "preferred" orientation or are preferentially oriented in a specific direction. The realization of these electrons has notable implications for physics research, as it can pave the way toward th.....»»
IPC sector comes knocking for oToBrite"s iToF camera module
OToBrite, known as the ADAS optical sensor system supplier of Chinese automaker startup XPeng, has released an indirect Time of Flight (iToF) camera module. Besides officially shipping to the smart medical industry at the end of 2022, the industrial.....»»
Wafer-level backend house VisEra puts focus on automotive
VisEra Technologies, a provider of wafer-level backend services for optical thin films, has shifted its focus to automotive applications in an effort to offset a decline in handset demand......»»
Volcano rumbles near Mexico City, coating towns with ash, disrupting flights
Towering a few hours from one of the world's largest cities, the Popocatepetl volcano has been coating nearby towns with ash and disrupting flights at Mexico City's airport, the busiest in Latin America......»»
Ligand-nanocrystal interactions under visible light irradiation
When designing optoelectronic devices, such as solar cells, photocatalysts, and photodetectors, scientists usually prioritize materials that are stable and possess tunable properties. This allows them precise control over optical characteristics of t.....»»
Multifunctional interface enables manipulation of light waves in free space
Recent technological advances have given us a remarkable ability to manipulate and control light waves, opening up numerous applications in various fields, such as optical communication, sensing, imaging, energy, and quantum computing. At the heart o.....»»
With Tesla reconciling with Largan, will Asia Optical be dropped?
Market sources recently pointed out that Taiwan-based Largan Precision has privately settled its patent infringement "warning" against EV leader Tesla regarding automotive lenses. According to sources, Largan has already obtained most of Tesla's auto.....»»
Study reveals generation mechanism of radiative effects on novel active optical hyperspectral LiDAR system
Both the geometric and spectral information of the target are available with the hyperspectral light detection and ranging (LiDAR) in a single measurement. This advanced technique extends the scope of imaging spectroscopy to spectral three-dimensiona.....»»
Topologically structured light detects the position of nano-objects with atomic resolution
Optical imaging and metrology techniques are key tools for research rooted in biology, medicine and nanotechnology. While these techniques have recently become increasingly advanced, the resolutions they achieve are still significantly lower than tho.....»»
Researchers use structured light on a chip in another photonics breakthrough
In everyday life we experience light in one of its simplest forms—optical rays or beams. However, light can exist in much more exotic forms. Thus, even beams can be shaped to take the form of spirals; so-called vortex beams, endowed with unusual pr.....»»
An edible CBD coating could extend the shelf life of strawberries
Soon, you'll be able to get a box of freshly picked, sweet strawberries from the grocery store or local farm stand. But it's disappointing when you get them home and find that the ones at the bottom have started to rot. To increase the berries' shelf.....»»