The experimental demonstration of topological dissipation in photonic resonators
So far, physicists have primarily studied topological phases in conservatively coupled systems. These are systems with dynamics that do not dissipate and a phase space that does not shrink over time. They are in stark contrast with dissipative system.....»»
3D/4D printed bio-piezoelectric scaffolds show potential in bone tissue engineering
Piezoelectricity has been well recognized as the key factor in bone regeneration. However, the current additive-manufactured scaffolds mainly focus on the reconstruction of bionic topological structure and mechanical microenvironment, while the cruci.....»»
Study reveals older burglars outperform younger counterparts in virtual burglaries
A new study, published in the Journal of Experimental Criminology, examined the development of offense-related expertise in a sample of convicted burglars, depending on their age......»»
Rapid fabrication of a polymer lens on a laser chip for miniaturized spectroscopy
There is a growing demand for portable gas sensors, from both environmental and health sciences users as well as industry. Resonant optical sensors, in particular planar micro-resonators, combine high sensitivity and small footprint, which makes them.....»»
Visualizing the topology of electrons with "3D glasses"
They are seen as a beacon of hope for energy-saving electronics and the high-tech of the future: topological quantum materials. One of their properties is the conduction of spin-polarized electrons on their surface—even though they are actually non.....»»
Engineering dual carriageways for signals: Research expands possibilities for more flexible signaling devices
Routing signals and isolating them against noise and back-reflections are essential in many practical situations in classical communication as well as in quantum processing. In a theory-experimental collaboration, a team led by Andreas Nunnenkamp fro.....»»
Scientists propose new design to implement highly directional single-photon source
A team of researchers from the Institute of Optics of CSIC and the Institute of Photonic Sciences (ICFO) of Barcelona has proposed a new design to implement highly directional single-photon sources, which constitutes an improvement over currently exi.....»»
Decoding the impact flash created by high-velocity impacts
In an experimental study published in PNAS Nexus, researchers explore the visible impact flash that is created by high-velocity impacts......»»
Hyundai union stages strike in South Korea for first time in five years
The government has pushed for reforms in labor unions and vowed strong responses to any illegal demonstration that disrupts public order......»»
A surprising discovery about the magnetic interactions in a Kagome layered topological magnet
A team from Ames National Laboratory conducted an in-depth investigation of the magnetism of TbMn6Sn6, a Kagome layered topological magnet. They were surprised to find that the magnetic spin reorientation in TbMn6Sn6 occurs by generating increasing n.....»»
Researchers discover photonic snake states, a new instrument for unveiling the secrets of light
Light, with its countless colors, is one of the wonders of nature. To truly understand what we see, it is essential to know the precise colors of the light with which we perceive our world. We achieve this by means of optical rules called frequency c.....»»
Multi-dimensional band structure spectroscopy in the photonic synthetic frequency dimension
In the photonic synthetic dimension, the coupling of internal degrees of freedom of photons, such as frequency, spatial mode, and orbital angular momentum, generates extra dimensions in addition to real space. This approach is a powerful tool to inve.....»»
High-power optical continuous-wave waveguiding in a silica micro/nanofiber
Optical MNFs are cylindrical optical waveguides with diameter below or close to the wavelength of the light. Since its first experimental demonstration, low-loss silica MNF has been attracting increasing attention in wide applications from optical se.....»»
Photonic time crystals could open the door to a new branch of optics
Refractive index—the ratio of the speed of electromagnetic radiation in a medium to its speed in a vacuum—can be modulated fast enough to generate photonic time crystals (PTCs) in the near-visible part of the spectrum, a new study published in th.....»»
Study presents ultra-low threshold continuous-wave quantum dot mini-BIC lasers
Lasers with ultra-low threshold and compact size are highly desirable components in photonic integrated circuits, aiming at the application of optical communications, chip-scale solid-state LIDAR and quantum information. The general approach to reali.....»»
NASA’s experimental supersonic jet edges toward first test flight
After six years of development, NASA is hoping to launch the first test flight of its quieter supersonic aircraft this year......»»
Research team solves the riddle of the viscosity jump in the Earth"s lower mantle
An international research team led by Prof. Dr. Tomoo Katsura at the Bavarian Research Institute of Experimental Geochemistry and Geophysics, University of Bayreuth, has discovered why rocks in the Earth's interior suddenly become more viscous at dep.....»»
Experimental constraints on the oxidation state of early magma on the Earth
The link between a planetary interior and its surface is a key to understanding the formation process of the surface environment of the planet......»»
Functional surface refinement: Targeted control of growth dynamics of finest tin layers
Nanometer-scale coatings with functional materials play an important role in many sensory, electronic and photonic applications. An international team of researchers, coordinated by Leibniz IPHT in Jena, Germany, has succeeded for the first time in o.....»»
Photonic chip transforms single beam of light into multiple beams, each with a panoply of different properties
Researchers at the National Institute of Standards and Technology (NIST) have devised a photonic circuit on a chip that transforms a single incoming beam of laser light into a panoply of new beams, each with a host of different optical properties......»»
Scientists develop photonic radar system that can remotely and accurately monitor breathing
Constant monitoring of vital health signs is needed in a variety of clinical environments such as intensive care units, for patients with critical health conditions, health monitoring in aged care facilities and prisons, or in safety monitoring situa.....»»