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“#Monolayer transition metal dichalcogenide lens for high resolution imaging” Schematic of femtosecond laser fabrication of a monolayer TMDC lens. Inset: (i) AFM image of a monolayer TMDC single crystal, and (ii) Schematic of femtosecond laser-induced generation of MOx nanoparticles. Credit: Han Lin, Zai-Quan Xu, Guiyuan Cao, Yupeng Zhang, Jiadong Zhou, Ziyu Wang, Zhichen Wan, Zheng…
“#Researchers design efficient low-cost system for producing power at night” Researchers have designed an off-grid, low-cost modular energy source that uses radiative cooling to efficiently produce power for lighting at night. Credit: Lingling Fan and Wei Li, Stanford University Researchers have designed an off-grid, low-cost modular energy source that can efficiently produce power at night….
“#Optics research demonstrates waveguides that guarantee stable propagation of azimuthons” Azimuthon transition between dipole and hexapole, from Zhang et al, doi 10.1117/1.AP.2.4.046002. Credit: Zhang et al. The optical vortex plays an increasingly important role in optical information processing. As an information carrier, it improves the capacity of channels and offers an independent aspect for analysis—different…
“#Ultraviolet communication to transform Army networks” Credit: The Army Research Laboratory Of ever-increasing concern for operating a tactical communications network is the possibility that a sophisticated adversary may detect friendly transmissions. Army researchers developed an analysis framework that enables the rigorous study of the detectability of ultraviolet communication systems, providing the insights needed to deliver…
“#Scientists create compact particle accelerators that drive electron beams nearer speed of light” Credit: University of Manchester Scientists have successfully developed a pocket-sized particle accelerator capable of projecting ultra-short electron beams with laser light at more than 99.99% of the speed of light. To achieve this result, the researchers have had to slow down light…
“#Light swirls provide insights into the quantum world” Credit: CC0 Public Domain A new method uses swirls of light to enable researchers to observe previously invisible quantum states of electrons. The method was developed by physicists from Martin Luther University Halle-Wittenberg (MLU) and an international team of researchers. It promises to deliver new insights into…
“#Using air to amplify light” New hollow-core optical fibers that are filled with either air or gas. Credit: Alain Herzog/2020 EPFL In a promising breakthrough for the future of communications, EPFL researchers have developed a technology that can amplify light in the latest hollow-core optical fibers. “The idea had been going around my head for…
“#Understanding vacuum fluctuations in space” Artistic depiction of the electron wave function (red and yellow colours) dressed by a sheet of virtual photons (blue). Extremely rapid deactivation of the coupling strips these photons off the electrons, unveiling otherwise inaccessible properties of the deep-strongly light-matter coupled quantum state. Credit: J. Mornhinweg (2020). An international research team…
“#Materials science researchers develop first electrically injected laser” Schematic illustration of electrically injected germanium-tin laser and its power output versus current and spectrum characteristics. Credit: University of Arkansas Materials science researchers, led by electrical engineering professor Shui-Qing “Fisher” Yu, have demonstrated the first electrically injected laser made with germanium tin. Used as a semiconducting material…
“#Innovative method offers a new way of studying developmental cardiac biomechanics, live in 4-D” Mouse embryo and heart with blood flow. Credit: Wang and Larina How a valveless embryonic heart tube pumps blood is a long-standing scientific mystery. Thanks to innovations in light-based technology, fresh insights are now available into the biomechanics of mammalian cardiogenesis—and…