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The interaction of solids with high-intensity ultra-short laser pulses has enabled major technological breakthroughs over the past half-century. On the one hand, laser ablation of solids offers micromachining and miniaturization of elements in medical or telecommunication devices. On the other hand, accelerated ion beams from solids using intense lasers may pave the way for new […] Since the inception of microcomb, whose generation relies on Kerr nonlinearity in microresonator, the coherent soliton state has attracted intense research. Although the operation of sub-comb outputs is straightforward, as a noncoherent comb state, it was often overlooked in previous techniques. Go to Source Researchers have developed new optical tweezers that can stably trap particles that are large—about 0.1 mm—and irregularly shaped. While conventional optical tweezers use highly focused laser beams to trap micro- or nano-scale rod shaped or spherical particles, the advance could expand light-based trapping to a wider range of objects such as groups of cells, bacteria […] The intricate dance of atoms fusing and releasing energy has fascinated scientists for decades. Now, human ingenuity and artificial intelligence are coming together at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) to solve one of humankind’s most pressing issues: generating clean, reliable energy from fusing plasma. Go to Source […] Scientific discovery doesn’t always require a high-tech laboratory or a hefty budget. Many people have a first-rate lab right in their own homes—their kitchen. Go to Source A team of physicists from the University of Alabama in Huntsville and the Advanced Propulsion Laboratory at Applied Physics, in New York, has developed a model that shows it might be possible to create a subluminal warp drive. Go to Source Researchers at Pohang University of Science and Technology (POSTECH) have achieved a breakthrough in surpassing the limitations of traditional acoustic metalenses. They have successfully developed the first wide field-of-hearing metalens. Their research has been published in Nature Communications. Go to Source A research team from the Department of Functional Composites in Composites Research Division at Korea Institute of Materials Science (KIMS) has successfully developed electromagnetic wave absorbers based on metal-organic frameworks (MOFs) that enhance dielectric and magnetic losses in the gigahertz (GHz) frequency band. The research was published in the journal Advanced Composites and Hybrid Materials […] The elements in the periodic table are divided into metals, semimetals and non-metals. The distinction is based on their chemical and physical properties and is determined, in particular, by the movement of electrons and the materials’ ability to conduct electrical energy: metals are excellent conductors, semimetals have limited conductivity, non-metals are insulating materials, they do […] Diamond is the hardest material found in nature—diamond also has the highest thermal conductivity, allowing the most heat to flow through it rapidly. Go to Source Using interference between two lasers, a research group led by scientists from RIKEN and NTT Research have created an “optical conveyor belt” that can move polaritons—a type of light-matter hybrid particle—in semiconductor-based microcavities. This work could lead to the development of new devices with applications in areas such as quantum metrology and quantum information. Go […] A team of scientists at the Department of Energy’s SLAC National Accelerator Laboratory are developing new methods to probe the universe’s minute details at extraordinary speeds. Go to Source MIT physicists and colleagues have created a five-lane superhighway for electrons that could allow ultra-efficient electronics and more. The work, reported in the May 9 issue of Science, is one of several important discoveries by the same team over the last year involving a material that is essentially a unique form of pencil lead. Go […] When materials are subjected to extreme environments, they face the risk of mixing together. This mixing may result in hydrodynamic instabilities, yielding undesirable side effects. Such instabilities present a grand challenge across multiple disciplines, especially in astrophysics, combustion and shaped charges—a device used to focus the energy of a detonating explosive, thereby creating a high […] Every computing system, biological or synthetic, from cells to brains to laptops, has a cost. This isn’t the price, which is easy to discern, but an energy cost connected to the work required to run a program and the heat dissipated in the process. Go to Source |
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