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.....»»
Some plants do not shed their leaves in autumn, for good reason
Retention of dead biomass by plants is common in the temperate herbaceous flora and can be related to certain plant traits, indicating relevance to ecosystem functioning. These are the main findings of an experimental study on more than 100 plant spe.....»»
Theoretical and experimental physics team up in the search for particle flavor change
An important recent discovery in physics came from measuring neutrinos—neutral, weakly interacting particles—produced by the sun. Nuclear reactions in the sun produce only electron neutrinos. According to the standard model, neutrinos come in thr.....»»
Mathematics formula K-theory used to advance understanding of topological materials
Terry Loring, distinguished professor of mathematics and statistics, published and co-authored a new research piece involving his research on K-theory with the major advances in applications to critical problems in physics......»»
New metalens lights the way for advanced control of quantum emission
Quantum emission is pivotal to realizing photonic quantum technologies. Solid-state single photon emitters (SPEs), such as hexagonal boron nitride (hBN) defects, operate at room temperature. They are highly desirable due to their robustness and brigh.....»»
NASA"s deep space communications to laser boost
Set to launch this fall, NASA's Deep Space Optical Communications (DSOC) project will test how lasers could speed up data transmission far beyond the capacity of current radio frequency systems used in space. Known as a technology demonstration, DSOC.....»»
Stealth swimmers: The fish that hide behind other fish to hunt
A new study provides the first experimental evidence that the trumpetfish, Aulostomus maculatus, can conceal itself by swimming closely behind another fish while hunting—and reduce the likelihood of being detected by its prey. The study, involving.....»»
Experimental constraints on the viscosity of the Earth"s inner core
Although many geodynamical mechanisms have been proposed regarding the origin of the observed complex structure of Earth's inner core, no clear consensus has been reached. This is partly due to the lack of accurate knowledge of the viscosity in the i.....»»
In some materials, immutable topological states can be entangled with other manipulable quantum states
Rice University physicists have shown that immutable topological states, which are highly sought for quantum computing, can be entangled with other manipulable quantum states in some materials......»»
Harnessing the power of light: Advancements in photonic memory for faster optical computing
Technological advancements like autonomous driving and computer vision are driving a surge in demand for computational power. Optical computing, with its high throughput, energy efficiency, and low latency, has garnered considerable attention from ac.....»»
Telecom-band-integrated multimode photonic quantum-memory
Quantum memory that depends on quantum-band integration is a key building block used to develop quantum networks that are compatible with fiber communication infrastructures. Quantum engineers and IT specialists have yet to create such a network with.....»»
Millimeter-scale meron lattices that can serve as spin injectors for LEDs
Merons, topological structures based on in-plane magnetized magnetic materials, could have numerous valuable applications, particularly for carrying information or storing magnetic charge. Most past realizations of these structures, however, were lim.....»»
Recent advances in, and perspectives on, photonic bound states in the continuum
The interactions between light and matter are a central research focus in the field of photonics. Resonant cavities with high quality factors (Q) are capable to confine light effectively and exhibit ultra-long radiation lifetimes, making them essenti.....»»
A demonstration of substituent effects in anti-aromatic compounds
Circularly conjugated compounds with 4n+2 pi-electrons are known as aromatic compounds. They are generally stable and are found in our surroundings. Conversely, anti-aromatic compounds with 4n pi-electrons have been conventionally considered unstable.....»»
Enhanced light absorption in thin silicon photodetectors with photon-trapping structures
Photonic systems are quickly gaining traction in many emerging applications, including optical communications, lidar sensing, and medical imaging. However, the widespread adoption of photonics in future engineering solutions hinges on the cost of man.....»»
The US government is taking a serious step toward space-based nuclear propulsion
"NASA is looking to go to Mars with this system." Enlarge / Artist concept of Demonstration for Rocket to Agile Cislunar Operations (DRACO) spacecraft, which will demonstrate a nuclear thermal rocket engine. (credit: DARPA).....»»
Super flexible Arc browser drops waitlist as it hits 1.0
Experimental browsers, they grow up so fast. The Browser Company has been building Arc for several months now, and today the ultra-customizable app is graduating out of beta. more… The post Super flexible Arc browser drops waitlist as it hits 1.0.....»»
Phase-tailored assembly and encoding of dissipative soliton molecules
Streams of ultrashort light pulses delivered from mode-locked laser resonators stimulate potential applications in ultrafast science and information technology. Here the elementary pulse entity, termed dissipative solitons in contrast to the pure sol.....»»
3D-printed facet-attached microlenses (FaML) could overcome photonic packaging challenges
Photonic integrated circuits (PICs) are on the verge of significant disruption through the unlocking of novel applications. This success largely relies on advanced wafer-level miniaturized photonic device fabrication, combining outstanding functional.....»»
Study demonstrates construction of monoatomic lead layers with specially developed method for the first time
In a recent publication in the journal Advanced Materials Interfaces, the research team led by first author Dr. Philip Schädlich, a research associate at the Professorship of Experimental Physics, presents a method for the detailed structural analys.....»»
Fabrication of nanoscale photonic crystals with an ultrafast laser
The light control performance of photonic crystals is closely related to their lattice constant, which typically requires the lattice constant to be in the same order of magnitude as the working wavelength. In crystal materials, the photonic crystal.....»»