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.....»»
Crystals hold a secret history of volcanoes—and clues about future eruptions
Imagine you had a crystal ball that revealed when a volcano would next erupt. For the hundreds of millions of people around the world who live near active volcanoes, it would be an extremely useful device......»»
Scientists demonstrate first experimental evidence of non-Hermitian edge burst in photonic quantum walks
In a new Physical Review Letters study, scientists have demonstrated the first experimental observation of non-Hermitian edge burst in quantum dynamics using a carefully designed photonic quantum walk setup......»»
Unraveling the fundamental principles of eutectic solidification with real-time, nanoscale imaging
During eutectic solidification, a mixture of two or more solids self-assemble, forming composite microstructures ranging from ordered layers to intricate maze-like patterns that underlie properties like tensile strength or ductility......»»
Nanoscale silver exhibits intrinsic self-healing abilities without external intervention
As an innovative concept in materials science and engineering, the inspiration for self-healing materials comes from living organisms that have the innate ability to self-heal. Along this line, the search for self-healing materials has been generally.....»»
ChemCam hits 1 million laser shots on Mars since 2012
The ChemCam instrument, developed at Los Alamos National Laboratory, recently zapped its laser for the 1 millionth time on Mars. Sitting on top of NASA's Curiosity rover, ChemCam has been helping make groundbreaking discoveries since 2012......»»
Sony’s new 4K laser projectors have the processing brains of its Bravia OLED TVs
Sony announced two new high-end 4K laser projectors, the Bravia 8 and Bravia 9, that feature the same XR processing as its high-performing Bravia TVs......»»
Long-range-interacting topological photonic lattices breaking channel-bandwidth limit
Topological physics, which focuses on physical quantities that remain invariant under deformations, has garnered widespread interest in different areas of physics—photonics, quantum computing, solid-state physics, acoustics, and electronic circuits.....»»
Scientists demonstrate octave-spanning soliton frequency combs on thin-film lithium niobate
The invention of optical frequency combs revolutionized frequency metrology and time-keeping. Miniaturization of such combs onto photonic chips, primarily leveraging the microresonator Kerr soliton frequency comb, expands on these functionalities by.....»»
New method captures the stochastic dynamics in coherent X-ray imaging at the nanoscale
Coherent X-ray imaging has emerged as a powerful tool for studying both nanoscale structures and dynamics in condensed matter and biological systems. The nanometric resolution together with chemical sensitivity and spectral information render X-ray i.....»»
Study: Giant ultrafast dichroism and birefringence with active nonlocal metasurfaces
The fine and efficient control of the properties of light at ultrafast speed down to the picosecond timescale is a challenging task, crucial for many scientific applications and technologies. For instance, in free-space optical links, manipulating on.....»»
Polymer foam aims to transform oil spill cleanup
University of Waterloo researchers have developed a new material that can absorb more than eight times its weight in oil, offering a new solution in preventing groundwater contamination from spills or accidents. The study, "Fabrication of Triblock El.....»»
The world"s fastest single-shot 2D imaging technique films ultrafast dynamics in flames
Candle flames and airplane engines produce tiny soot particles from polycyclic aromatic hydrocarbons (PAHs) as their precursors, both of which are harmful to humans and the environment. These carbon-based particles are also common in space, making up.....»»
Natural piezoelectric effect may build gold deposits
How does an unreactive, barely soluble metal end up forming giant chunks? Enlarge / A lot of gold deposits are found embedded in quartz crystals. (credit: Pierre Longnus) One of the reasons gold is so valuable is because.....»»
Cold-atom simulator demonstrates quantum entanglement between electronic and motional states
Researchers from the Institute for Molecular Science have revealed quantum entanglement between electronic and motional states in their ultrafast quantum simulator, generated by the repulsive force due to the strong interaction between Rydberg atoms......»»
High-sensitivity laser heterodyne radiometer developed for remote sensing of atmospheric water vapor, isotopes
A research team led by Prof. Gao Xiaoming from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences developed a near-infrared laser heterodyne radiometer (LHR), that could greatly improve water vapor measurements in the atmosph.....»»
Researchers explore design of polar crystalline solids of pure molecular materials
Harmeet Bhoday, a Missouri S&T Ph.D. student in chemistry from Chandigarh, India, was the lead author of an article titled "Perfect Polar Alignment of Parallel Beloamphiphile Layers: Improved Structural Design Bias Realized in Ferroelectric Crystals.....»»
Samsung adds two more ultra short throw projectors to its Premiere lineup
The Samsung Premiere 9 and Premiere 7 add two very capable laser projectors to the company's ultra short throw lineup......»»
A leap forward in nanotechnology: Growing special micro-crystals for better devices
In a paper published in the journal Advanced Materials, Dr. Atikur Rahman's research group from the Physics department at IISER Pune, India, along with collaborators, report a new way to grow special crystals called CsPbBr3 nanoplatelets......»»
Researchers demonstrate metasurfaces that control thermal radiation in unprecedented ways
Researchers with the Advanced Science Research Center at the CUNY Graduate Center (CUNY ASRC) have experimentally demonstrated that metasurfaces (two-dimensional materials structured at the nanoscale) can precisely control the optical properties of t.....»»
Quality control: Neatly arranging crystal growth to make fine thin films
Table salt and refined sugar look white to our eyes, but that is only because their individual colorless crystals scatter visible light. This feature of crystals is not always desirable when it comes to materials for optical and electrical devices, h.....»»