Results 41 to 50 of about 4,795,126 (305)
Advanced magneto-optical microscopy: Imaging from picoseconds to centimeters - imaging spin waves and temperature distributions (invited) [PDF]
, 2015 © 2016 Author(s).Recent developments in the observation of magnetic domains and domain walls by wide-field optical microscopy based on the magneto-optical Kerr, Faraday, Voigt, and Gradient effect are reviewed.
Deldar, S +7 more
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µID-TIMS: spatially resolved high-precision U–Pb zircon geochronology [PDF]
GeochronologyWe present a novel methodology for spatially resolved high-precision U–Pb geochronology of individual growth domains in complex zircon. Our approach utilizes a multi-ion-species (Xe+/Ar+) plasma focused ion beam (PFIB)–femtosecond (fs) laser system ...
S. Markovic +5 more
doaj +1 more source
Metamaterial emitter for thermophotovoltaics stable up to 1400 °C
Scientific Reports, 2019 High temperature stable selective emitters can significantly increase efficiency and radiative power in thermophotovoltaic (TPV) systems. However, optical properties of structured emitters reported so far degrade at temperatures approaching 1200 °C due ...
Manohar Chirumamilla +9 more
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Spatial convolution and correlation of optical fields via degenerate four-wave mixing [PDF]
, 1978 A nonlinear optical technique is described that performs, essentially instantaneously, the functions of spatial correlation and convolution of spatially encoded waves.
AuYeung, John +3 more
core +1 more source
Refinement of cryo-EM 3D maps with a self-supervised denoising model: crefDenoiser
IUCrJCryogenic electron microscopy (cryo-EM) is a pivotal technique for imaging macromolecular structures. However, despite extensive processing of large image sets collected in cryo-EM experiments to amplify the signal-to-noise ratio, the reconstructed 3D ...
Ishaant Agarwal +3 more
doaj +1 more source
Nature Communications, 2016 The ability to control thermal radiation at high temperatures is of interest for thermal photovoltaics. Here, Dyachenko et al. engineer the epsilon-near-zero frequency of a metamaterial and connected optical topological transition to selectively enhance ...
P. N. Dyachenko +8 more
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Scanning Near-Field Optical Microscopy
Biomolecules & Biomedicine, 2008 An average human eye can see details down to 0,07 mm in size. The ability to see smaller details of the matter is correlated with the development of the science and the comprehension of the nature. Today’s science needs eyes for the nano-world. Examples
Dušan Vobornik, Slavenka Vobornik
doaj +1 more source
Near-field scanning optical microscopy of photonic crystal nanocavities [PDF]
, 2003 Near-field scanning optical microscopy was used to observe high-resolution images of confined modes and photonic bands of planar photonic crystal (PPC) nanocavities fabricated in active InGaAsP material. We have observed the smallest optical cavity modes,
Gogna, Pawan +5 more
core +2 more sources
Ultrasound-modulated optical microscopy [PDF]
Journal of Biomedical Optics, 2008 We demonstrate that microscopic imaging is feasible in ultrasound-modulated optical tomography (UOT) of soft biological tissues, using a high-frequency focused ultrasound transducer with a 75-MHz central frequency. Our experiments in tissue mimicking phantoms show that at an imaging depth of about 2 mm, an axial resolution better than 30 microm can be ...
Kothapalli, Sri-Rajasekhar +1 more
openaire +3 more sources
The dynamics of overlayer formation on catalyst nanoparticles and strong metal-support interaction
Nature Communications, 2020 Tuning the catalytic activity of metal nanoparticles by encapsulation is a long known process, but mechanistically poorly understood. Here, Beck and colleagues reveal the encapsulation mechanism by support material and the outstanding role of oxygen in ...
Arik Beck +8 more
doaj +1 more source