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作者:Trail, Dustin; McCollom, Thomas M.
作者单位:University of Rochester; University of Colorado System; University of Colorado Boulder
摘要:The properties of high-temperature lithospheric fluids within the early Earth are poorly known, yet many origin-of-life scenarios depend upon their characteristics. These fluids represent a key communication pathway between Earth's interior and hydrothermal pools. We use zircon chemistry, experiments, and modeling to infer the character of lithospheric fluids approaching 4 billion years. We constrain oxygen fugacity, chlorine content, and temperature, which allow us to model the solubility and...
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作者:He, Liuyue; Li, Zhongbin; Jia, Qian; Xu, Zhenci
作者单位:Wuhan University; Tongji University; University of Hong Kong
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作者:Hu, Hai; Chen, Na; Teng, Hanchao; Yu, Renwen; Xue, Mengfei; Chen, Ke; Xiao, Yuchuan; Qu, Yunpeng; Hu, Debo; Chen, Jianing; Sun, Zhipei; Li, Peining; Garcia de Abajo, F. Javier; Dai, Qing
作者单位:Chinese Academy of Sciences; National Center for Nanoscience & Technology, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Stanford University; Barcelona Institute of Science & Technology; Universitat Politecnica de Catalunya; Institut de Ciencies Fotoniques (ICFO); ICREA; Chinese Academy of Sciences; Institute of Physics, CAS; Aalto University; Huazhong University of Science & Technology; Huazhong University of Science & Technology
摘要:Negative refraction provides a platform to manipulate mid-infrared and terahertz radiation for molecular sensing and thermal emission applications. However, its implementation based on metamaterials and plasmonic media presents challenges with optical losses, limited spatial confinement, and lack of active tunability in this spectral range. We demonstrate gate-tunable negative refraction at mid-infrared frequencies using hybrid topological polaritons in van der Waals heterostructures. Specific...
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作者:Mega, Emiliano Rodriguez
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作者:Sternbach, A. J.; Moore, S. L.; Rikhter, A.; Zhang, S.; Jing, R.; Shao, Y.; Kim, B. S. Y.; Xu, S.; Liu, S.; Edgar, J. H.; Rubio, A.; Dean, C.; Hone, J.; Fogler, M. M.; Basov, D. N.
作者单位:Columbia University; University of California System; University of California San Diego; Columbia University; Kansas State University; Simons Foundation; Flatiron Institute; Max Planck Society
摘要:We visualized negative refraction of phonon polaritons, which occurs at the interface between two natural crystals. The polaritons-hybrids of infrared photons and lattice vibrations-form collimated rays that display negative refraction when passing through a planar interface between the two hyperbolic van der Waals materials: molybdenum oxide (MoO3) and isotopically pure hexagonal boron nitride (h11BN). At a special frequency co0, these rays can circulate along closed diamond-shaped trajectori...
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作者:Stokstad, Erik