June 2019 – Kavli Institute Pre-Print Publications

Wide-angle spectrally selective absorbers and thermal emitters based on inverse opals

Posted by klaurent June 30, 2019Harvard

Kavli Affiliate: Anna V. Shneidman | First 5 Authors: Alireza Shahsafi, Graham Joe, Soeren Brandt, Anna V. Shneidman, Nicholas Stanisic | Summary: Engineered optical absorbers are of substantial interest for applications ranging from stray light reduction to energy conversion. We demonstrate a large-area (centimeter-scale) metamaterial that features near-unity frequency-selective absorption in the mid-infrared wavelength range. […]

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Mesophase Formation Stabilizes High-Purity Magic-Sized Clusters

Posted by klaurent June 26, 2019Cornell

Kavli Affiliate: Richard D. Robinson | Summary:Magic-sized clusters (MSCs) are renowned for their identical size and closed-shell stability that inhibit conventional nanoparticle (NP) growth processes. Though MSCs have been of increasing interest, understanding the reaction pathways toward their nucleation and stabilization is an outstanding issue. In this work, we demonstrate that high concentration synthesis (1000 […]

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Chemically reversible isomerization of inorganic clusters

Posted by klaurent June 26, 2019Cornell

Kavli Affiliate: Richard D. Robinson | Summary:Structural transformations in molecules and solids have generally been studied in isolation, while intermediate systems have eluded characterization. We show that a pair of CdS cluster isomers provides an advantageous experimental platform to study isomerization in well-defined atomically precise systems. The clusters coherently interconvert over an est. 1 eV […]

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The structure of magnetic turbulence in the heliosheath region observed by Voyager 2 at 106 AU

Posted by klaurent June 18, 2019MIT

Kavli Affiliate: John Richardson | Summary:It is currently believed that the turbulent fluctuations pervade the outermost heliosphere. Turbulence, magnetic reconnection, and their link may be responsible for magnetic energy conversion in these regions. The governing mechanisms of such anisotropic and compressible magnetic turbulence in the inner heliosheath (IHS) and in the local interstellar medium (LISM) […]

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The structure of magnetic turbulence in the heliosheath region observed by Voyager 2 at 106 AU

Posted by klaurent June 18, 2019MIT

Kavli Affiliate: John D. Richardson | First 5 Authors: Federico Fraternale, Nikolai V Pogorelov, John D Richardson, Daniela Tordella, | Summary: It is currently believed that the turbulent fluctuations pervade the outermost heliosphere. Turbulence, magnetic reconnection, and their link may be responsible for magnetic energy conversion in these regions. The governing mechanisms of such anisotropic […]

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The Little Phone That Could Ch-Ch-Chroot

Posted by klaurent June 17, 2019MIT

Kavli Affiliate: Mathew Evans | First 5 Authors: Jack Whitter-Jones, Mathew Evans, , , | Summary: Security testing has been a career path that many are beginning to take. In doing so, security testing can hit the realms of many different types of engagements, ranging from web, infrastructure and social engineering. With the risk of […]

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Magnetic turbulence spectra and intermittency in the heliosheath and in the local interstellar medium

Posted by klaurent June 17, 2019MIT

Kavli Affiliate: John Richardson | Summary:The understanding of inertial-scale dynamics in the heliosheath is not yet thorough. Magnetic field fluctuations across the inner heliosheath (IHS) and the local interstellar medium (LISM) are here considered to provide accurate and highly resolved statistics over different plasma conditions between 88 and 136 au. By using the unique in […]

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Magnetic turbulence spectra and intermittency in the heliosheath and in the local interstellar medium

Posted by klaurent June 17, 2019MIT

Kavli Affiliate: John D. Richardson | First 5 Authors: Federico Fraternale, Nikolai V Pogorelov, John D Richardson, Daniela Tordella, | Summary: The understanding of inertial-scale dynamics in the heliosheath is not yet thorough. Magnetic field fluctuations across the inner heliosheath (IHS) and the local interstellar medium (LISM) are here considered to provide accurate and highly […]

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Transfer conditions and transmission bias in capillaries of vacuum interfaces

Posted by klaurent June 12, 2019Oxford

Kavli Affiliate: Stephan Rauschenbach | Summary:A detailed study of the transfer of ions in transfer capillaries of electrospray ion sources is presented. The laminar flow field for various capillary sizes and wall temperatures is calculated. It forms the base of ion transfer simulation of a large number of ions with space charge. This allows to […]

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Securing the legacy of TESS through the care and maintenance of TESS planet ephemerides

Posted by klaurent June 5, 2019MIT

Kavli Affiliate: Edward Morgan | Summary:Much of the science from the exoplanets detected by the TESS mission relies on precisely predicted transit times that are needed for many follow-up characterization studies. We investigate ephemeris deterioration for simulated TESS planets and find that the ephemerides of 81% of those will have expired (i.e. 1$σ$ mid-transit time […]

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