Physics

Research team develops ultrabroadband edge coupler for highly efficient second harmonic generation

Advanced Photonics Nexus (2022). DOI 10.1117 / 1.APN.1.1.016001″ width=”800″ height=”450″/> Three-dimensional structure of the X-cut edge coupler, consisting of a suspended SiO2 waveguide and a tri-layer SSC. Credit: Liu et al., Advanced Photonics Nexus (2022). DOI 10.1117 / 1.APN.1.1.016001 Thin-film lithium niobate (TFLN) has recently emerged as a versatile nanophotonic platform. With the advantages of …

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STEM trailblazer, physicist Dr. Shirley Ann Jackson retiring after 50 years

After a remarkable career spanning nearly 50 years, STEM trailblazer, physicist and Rensselaer Polytechnic Institute President Dr. Shirley Ann Jackson is retiring. In 1973, Jackson graduated from the Massachusetts Institute of Technology with a doctorate in theoretical elementary particle physics, making her the first Black woman to receive a doctorate in any field from the …

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Curiosity rover takes inventory of key life ingredient on Mars

From a position in the shallow “Yellowknife Bay” depression, NASA’s Mars rover Curiosity used its right Mast Camera (Mastcam) to take the telephoto images combined into this panorama of geological diversity. Credit: NASA / JPL-Caltech / MSSS Scientists using data from NASA’s Curiosity rover have measured the total organic carbon — a key component in …

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Research team captures an elusive shadow: State-by-state gun ownership

Credit: Pixabay / CC0 Public Domain Policymakers are faced with an exceptional challenge: how to reduce harm caused by firearms while maintaining citizens’ right to bear arms and protect themselves. This is especially true as the Supreme Court has hobbled New York State regulations restricting who can carry a concealed weapon. While meaningful legislation requires …

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Are you a Higgs expert? Take this quiz to find out!

Illustration by Sandbox Studio, Chicago 06/28/22 By Kathryn Jepsen July 4 marks the 10thth anniversary of the discovery of the Higgs boson. This 10-question quiz will test your knowledge of the particle — and it may even teach you something new. Click through each of the answers for more information. 1: What does “Higgs” refer …

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Ultrafast world captured with ultrathin films

Credit: Heriot-Watt University A film just 250 nanometers or 0.00025 mm thick has given scientists a sneak peek into the ultrafast world. The film is made of transparent conducting oxides, a class of materials commonly used for smartphone touch screens and photovoltaic systems. Nanophotonics experts from Heriot-Watt’s Institute of Photonics and Quantum Sciences have proved …

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Mesmerizing half-wheel bike shows two halves make a whole – and this applies to physics too

Researchers believe that the wheel was invented in the 4th millennium BC in Lower Mesopotamia, modern-day Iraq, where the Sumerian people inserted rotating axles into solid discs of wood, ushering in a tool that would prove instrumental for mankind. The wheel had a fundamental impact on transport, agriculture, and industry, which makes it arguably the …

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Understanding earthquakes triggered by wastewater injection

Researchers investigated the characteristics of an earthquake that shook Guthrie, Okla., In 2015. Credit: Nicolas Henderson, CC BY 2.0 Since 2009, many central US residents have faced increasing earthquake activity. Research has suggested that these tremors are linked to wastewater injection into deep wells by oil and gas companies. However, the precise dynamics of these …

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Dream of unlimited, clean nuclear fusion energy within reach

Nuclear fusion energy could be a pivotal sustainable energy source to complement renewables. The world’s largest fusion experiment, ITER, is being built in France. Credit: © ITER Organization, www.iter.org/ The old joke is that nuclear fusion is always 30 years away. Yet the dream of abundant clean energy is no laughing matter as we meet …

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