Diffraction limited centimeter scale radiator: metasurface grating antenna for phased array LiDAR

Posted by UCSB

Kavli Affiliate: Larry Coldren | First 5 Authors: Weiqiang Xie, Jinxi Huang, Tin Komljenovic, Larry Coldren, John Bowers | Summary: In this paper, we demonstrate a radiation-strength-chirped metasurface centimeter-long grating antenna, whose beam quality is approaching the diffraction limit in its footprint with 90 percent efficiency.Instead of chirping the duty cycle to tune radiation strength, […]


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Control of hidden ground-state order in NdNiO$_3$ superlattices

Posted by Cornell

Kavli Affiliate: Ankit Disa | First 5 Authors: Ankit S. Disa, Alexandru B. Georgescu, James L. Hart, Divine P. Kumah, Padraic Shafer | Summary: The combination of charge and spin degrees of freedom with electronic correlations in condensed matter systems leads to a rich array of phenomena, such as magnetism, superconductivity, and novel conduction mechanisms. […]


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Classifying Signatures of Sudden Ionospheric Disturbances

Posted by klaurent Stanford

Kavli Affiliate: Philip H. Scherrer | First 5 Authors: Sahil Hegde, Monica G. Bobra, Philip H. Scherrer, , | Summary: Solar activity, such as flares, produce bursts of high-energy radiation that temporarily enhance the D-region of the ionosphere and attenuate low-frequency radio waves. To track these Sudden Ionospheric Disturbances (SIDs), which disrupt communication signals and […]


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The LSST Dark Energy Science Collaboration (DESC) Science Requirements Document

Posted by dbos Stanford

Kavli Affiliate: Patricia Burchat | First 5 Authors: The LSST Dark Energy Science Collaboration, Rachel Mandelbaum, Tim Eifler, Renée Hložek, Thomas Collett | Summary: The Large Synoptic Survey Telescope (LSST) Dark Energy Science Collaboration (DESC) will use five cosmological probes: galaxy clusters, large scale structure, supernovae, strong lensing, and weak lensing. This Science Requirements Document […]


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Harnessing Avidity: Quantifying Entropic and Energetic Effects of Linker Length and Rigidity Required for Multivalent Binding of Antibodies to HIV-1 Spikes

Posted by klaurent Caltech

Kavli Affiliate: Pamela J. Bjorkman | First 5 Authors: Tal Einav, Shahrzad Yazdi, Aaron Coey, Pamela J. Bjorkman, Rob Phillips | Summary: Due to the low density of envelope (Env) spikes on the surface of HIV-1, neutralizing IgG antibodies rarely bind bivalently using both antigen-binding arms (Fabs) to crosslink between spikes (inter-spike crosslinking), instead resorting […]


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Absolute and arbitrary orientation of single molecule shapes

Posted by klaurent Caltech

Kavli Affiliate: Paul W. K. Rothemund | First 5 Authors: Ashwin Gopinath, Chris Thachuk, Anya Mitskovets, Harry A. Atwater, David Kirkpatrick | Summary: DNA origami is a modular platform for the combination of molecular and colloidal components to create optical, electronic, and biological devices. Integration of such nanoscale devices with microfabricated connectors and circuits is […]


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Characterization of lemniscate atmospheric aberrations in Gemini Planet Imager data

Posted by klaurent Stanford

Kavli Affiliate: Bruce A. Macintosh | First 5 Authors: Alexander Madurowicz, Bruce A. Macintosh, Jean-Baptiste Ruffio, Jeffery Chilcote, Vanessa P. Bailey | Summary: A semi analytic framework for simulating the effects of atmospheric seeing in Adaptive Optics systems on an 8-m telescope is developed with the intention of understanding the origin of the wind-butterfly, a […]


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Observation of a Dirac nodal line in AlB2

Posted by klaurent Tokyo

Kavli Affiliate: Kentaro Hori | First 5 Authors: Daichi Takane, Seigo Souma, Kosuke Nakayama, Takechika Nakamura, Hikaru Oinuma | Summary: We have performed angle-resolved photoemission spectroscopy of AlB2 which is isostructural to high-temperature superconductor MgB2. Using soft-x-ray photons, we accurately determined the three-dimensional bulk band structure and found a highly anisotropic Dirac-cone band at the […]


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PhyStat-$ν$ 2016 at the IPMU: Summary of Discussions

Posted by klaurent Tokyo

Kavli Affiliate: Mark Hartz | First 5 Authors: Yoshi Uchida, Mark Hartz, R. Phillip Litchfield, Callum Wilkinson, Asher Kaboth | Summary: The presentations, discussions and findings from the inaugural `PhyStat-$nu$’ workshop held at the Kavli Institute for the Physics and Mathematics of the Universe (IPMU) near Tokyo in 2016 are described. PhyStat-$nu$ was the first […]


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