Results 51 to 60 of about 1,108,811 (290)

Near-field transmission matrix microscopy for mapping high-order eigenmodes of subwavelength nanostructures

open access: yesNature Communications, 2020
Nanoscale integrated photonic devices have complicated combinations of optical eigenmodes. Here, the authors develop a far- to near-field transmission matrix microscopy that enables measuring higher-order modes of nanostructures beyond the capabilities ...
Eunsung Seo   +9 more
doaj   +1 more source

Vibrational spectroscopy of H2+: precise evaluation of the Zeeman effect

open access: yes, 2008
We present an accurate computation of the g-factors of the hyperfine states of the hydrogen molecular ion H2+. The results are in good agreement with previous experiments, and can be tested further by rf spectroscopy. Their implication for high-precision
A. Messiah   +5 more
core   +2 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Quantum optical measurements with undetected photons through vacuum field indistinguishability

open access: yesScientific Reports, 2017
Quantum spectroscopy and imaging with undetected idler photons have been demonstrated by measuring one-photon interference between the corresponding entangled signal fields from two spontaneous parametric down conversion (SPDC) crystals.
Sun Kyung Lee   +2 more
doaj   +1 more source

Corrosion Inhibition Effect of 5-Azidomethyl-8-Hydroxyquinoline on AISI 321 Stainless Steel in Phosphoric Acid Solution

open access: yesInternational Journal of Electrochemical Science, 2021
In the present paper, 5-Azidomethyl-8-hydroxyquinoline (AMHQ), a synthesized molecule, has been evaluated as a corrosion inhibitor for AISI 321 stainless steel in 5.5 M phosphoric acid solution, using chemical and electrochemical methods such as ...
Aimad Mazkour   +4 more
doaj   +1 more source

Theory for Nonlinear Spectroscopy of Vibrational Polaritons

open access: yes, 2017
Molecular polaritons have gained considerable attention due to their potential to control nanoscale molecular processes by harnessing electromagnetic coherence. Although recent experiments with liquid-phase vibrational polaritons have shown great promise
Dunkelberger, Adam D.   +6 more
core   +1 more source

In-situ spectroscopy of intrinsic Bi2Te3 topological insulator thin films and impact of extrinsic defects [PDF]

open access: yes, 2015
Combined in-situ x-ray photoemission spectroscopy, scanning tunnelling spectroscopy and angle resolved photoemission spectroscopy of molecular beam epitaxy grown Bi2Te3 on lattice mismatched substrates reveal high quality stoichiometric thin films with ...
Brinkman, A.   +13 more
core   +5 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Control of randomly scattered surface plasmon polaritons for multiple-input and multiple-output plasmonic switching devices

open access: yesNature Communications, 2017
Losses of bandwidth are inevitable when interfacing between optical and electronic components. Here the authors present a switching device consisting of a two-dimensional disordered array of nanoholes that can potentially transfer information about 40 ...
Wonjun Choi   +6 more
doaj   +1 more source

Detection of Single Ion Spectra by Coulomb Crystal Heating

open access: yes, 2010
The coupled motion of ions in a radiofrequency trap has been used to connect the frequency- dependent laser-induced heating of a sympathetically cooled spectroscopy ion with changes in the fluorescence of a laser-cooled control ion.
C. Ricardo Viteri   +6 more
core   +1 more source

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