Browsing MIT Open Access Articles by Title
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Diode Evaluation and Series Diode Balancing for HighVoltage HighFrequency Power Converters
(Institute of Electrical and Electronics Engineers (IEEE), 202006)Miniaturization of highvoltage power converters is severely limited by the availability of fast switching, lowloss highvoltage diodes. This article explores techniques for using discrete lowvoltage diodes in series as ... 
DiodePumped Cryogenic Yb[superscript 3+]:YLF Laser of 100W Output Power with High Beam Quality
(SPIE, 201003)A cryogenically cooled Yb:YLF laser with 224W output power at 995 nm, linearly polarized along the caxis, has been demonstrated, and laser oscillation has also been obtained polarized along the aaxis. The beam quality ... 
DiodePumped Gigahertz Repetition Rate Femtosecond Cr:Lisaf Laser
(Institute of Electrical and Electronics Engineers (IEEE), 201007)We report a lowcost, 1 GHz repetitionrate, diodepumped, saturable Bragg reflectors modelocked Cr:LiSAF laser, which generates nearly transformlimited 103fs long pulses around 866 nm, with a record high peak power of 1.45 kW. 
A Dioxane Template for Highly Selective Epoxy Alcohol Cyclizations
(Wiley Blackwell, 201306)Ladder polyether natural products are a class of natural products denoted by their high functionalgroup density and large number of welldefined stereocenters. They comprise the toxic component of harmful algal blooms ... 
Dioxygen Activation in Soluble Methane Monooxygenase
(American Chemical Society, 201103)The controlled oxidation of methane to methanol is a chemical transformation of great value, particularly in the pursuit of alternative fuels, but the reaction remains underutilized industrially because of inefficient and ... 
Diphoton excess at 750 GeV: gluon–gluon fusion or quark–antiquark annihilation?
(Springer Berlin Heidelberg, 201606)Recently, ATLAS and CMS collaborations reported an excess in the measurement of diphoton events, which can be explained by a new resonance with a mass around 750 GeV. In this work, we explored the possibility of identifying ... 
Dipolar recoupling in solid state NMR by phase alternating pulse sequences
(Elsevier, 200812)We describe some new developments in the methodology of making heteronuclear and homonuclear recoupling experiments in solid state NMR insensitive to rfinhomogeneity by phase alternating the irradiation on the spin system ... 
A dipole polarizable potential for reduced and doped CeO[subscript 2] obtained from first principles
(IOP Publishing, 201106)In this paper we present the parameterization of a new interionic potential for stoichiometric, reduced and doped CeO[subscript 2]. We use a dipole polarizable potential (DIPPIM: the dipole polarizable ion model) and ... 
Diquark correlations in a hadron from lattice QCD
(American Institute of Physics, 201107)Using lattice QCD, a diquark can be studied in a gaugeinvariant manner by binding it to a static quark in a heavylightlight hadron. We compute the simultaneous twoquark density of a diquark, including corrections for ... 
Dirac fermions and flat bands in the ideal kagome metal FeSn
(Springer Science and Business Media LLC, 201912)A kagome lattice of 3d transition metal ions is a versatile platform for correlated topological phases hosting symmetryprotected electronic excitations and magnetic ground states. However, the paradigmatic states of the ... 
Dirac operators and the very strange formula for Lie superalgebras
(Springer International Publishing AG., 2014)Using a superaffine version of Kostant’s cubic Dirac operator, we prove a very strange formula for quadratic finitedimensional Lie superalgebras with a reductive even subalgebra. 
Dirac Reduction for Poisson Vertex Algebras
(Springer Berlin Heidelberg, 201407)We construct an analogue of Dirac’s reduction for an arbitrary local or nonlocal Poisson bracket in the general setup of nonlocal Poisson vertex algebras. This leads to Dirac’s reduction of an arbitrary nonlocal Poisson ... 
Diracelectronmediated magnetic proximity effect in topological insulator/magnetic insulator heterostructures
(American Physical Society (APS), 201711)The possible realization of dissipationless chiral edge current in a topological insulator/magnetic insulator heterostructure is based on the condition that the magnetic proximity exchange coupling at the interface is ... 
Diracsurfacestatedominated spin to charge current conversion in the topological insulator (Bi[subscript 0.22]Sb[subscript 0.78])[subscript 2]Te[subscript 3] films at room temperature
(American Physical Society, 201711)We report the spintocharge current conversion in an intrinsic topological insulator (TI) (Bi[subscript 0.22]Sb[subscript 0.78])[subscript 2]Te[subscript 3] film at room temperature. The spin currents are generated in a ... 
A Dirac–Dunkl Equation on S[superscript 2] and the Bannai–Ito Algebra
(Springer Berlin Heidelberg, 201605)The Dirac–Dunkl operator on the twosphere associated to the Z[superscript 3][subscript 2] reflection group is considered. Its symmetries are found and are shown to generate the Bannai–Ito algebra. Representations of the ... 
Direct 11CNlabeling of unprotected peptides via palladiummediated sequential crosscoupling reactions
(American Chemical Society (ACS), 201705)A practical procedure for [superscript 11]CNlabeling of unprotected peptides has been developed. The method was shown to be highly chemoselective for cysteine over other potentially nucleophilic residues, and the radiolabeled ... 
Direct Absorption Volumetric Molten Salt Receiver With Integral Storage
(ASME International, 201108)A new design is presented for a concentrating solar power central receiver system with integrated thermal storage. Concentrated sunlight penetrates and is absorbed within a passive molten salt pool, also acting as a ... 
Direct and gestural interaction with relief: A 2.5D shape display
(Association for Computing Machinery (ACM), 201110)Actuated shape output provides novel opportunities for experiencing, creating and manipulating 3D content in the physical world. While various shape displays have been proposed, a common approach utilizes an array of linear ... 
Direct and indirect effectsan information theoretic perspective
(Multidisciplinary Digital Publishing Institute, 202007)Information theoretic (IT) approaches to quantifying causal influences have experienced some popularity in the literature, in both theoretical and applied (e.g., neuroscience and climate science) domains. While these causal ... 
Direct and quantitative broadband absorptance spectroscopy on small objects using Fourier transform infrared spectrometer and bilayer cantilever probes
(American Institute of Physics, 201302)A measurement platform is introduced that combines a bilayer cantilever probe with a Fourier transform infrared spectrometer to measure absolute spectral absorptance between wavelengths of 3 μm and 18 μm directly and ...