Results 81 to 90 of about 15,879 (217)

Toward a test of angular momentum coherence in a twin-atom interferometer

, 2015
We present a scheme well-suited to investigate quantitatively the angular momentum coherence of molecular fragments. Assuming that the dissociated molecule has a null total angular momentum, we investigate the propagation of the corresponding atomic ...
de Carvalho, Carlos R., Faria, N. V. de Castro, Impens, François, Jalbert, Ginette, Medina, Aline, Robert, J., Zappa, F.   +6 more
core   +1 more source

Partially coherent nano-focused x-ray radiation characterized by Talbot interferometry

Optics Express, 2011
We have studied the spatial coherence properties of a nano-focused x-ray beam by grating (Talbot) interferometry in projection geometry. The beam is focused by a fixed curvature mirror system optimized for high flux density under conditions of partial coherence.
Salditt, Tim, Kalbfleisch, Sebastian, Osterhoff, Markus, Krueger, S. P., Bartels, Matthias, Giewekemeyer, Klaus, Neubauer, Heike, Sprung, Michael   +7 more
openaire   +4 more sources

Entropy‐Guided Convolutional Neural Network Classification of Sensor Signals for Real‐Time Surface Quality Monitoring in Direct Laser Interference Patterning

Advanced Intelligent Systems, EarlyView.
Neural‐network pipeline for real‐time DLIP surface‐quality monitoring: spectral entropy of WLI topographies is used to generate interpretable K‐means labels, which are transferred to time‐resolved photodiode traces. A compact dual‐input 1D‐CNN (signal + laser parameters) learns discriminative spatiotemporal features and predicts “OK/NOK” surface ...
Marcelo Daniel Sallese, Ignacio Tabares, Wei Wang, Marcos Soldera, Andrés Fabián Lasagni   +4 more
wiley   +1 more source

Biometry in Silicone Oil Filled Eyes. A Review

Oftalʹmologiâ, 2021
The “gold standard” of modern vitreoretinal surgery is silicone oil tamponade of the vitreous cavity. The lens opacity development is in the list of complications of prolonged silicone oil eye filling (from 2 weeks to 2 years).
A. N. Kulikov, E. V. Danilenko, A. R. Kuznetsov   +2 more
doaj   +1 more source

Theory of decoherence in a matter wave Talbot-Lau interferometer

, 2004
We present a theoretical framework to describe the effects of decoherence on matter waves in Talbot-Lau interferometry. Using a Wigner description of the stationary beam the loss of interference contrast can be calculated in closed form.
A. Sommerfeld, B. Dubetsky, B. Vacchini, E. A. Mason, E. Joos, G. C. Maitland, G. Vidali, H. F. Talbot, H. Friedrich, H. Halban, Jr., H. Rauch, J. Clauser, J. M. Wylie, John E. Sipe, K. Patorski, Klaus Hornberger, M. Born, Markus Arndt, P. Facchi, R. Bonifacio, S. Martellucci   +20 more
core   +1 more source

Metasurfaces and Metadevices for Topological Electromagnetic Waves

Advanced Physics Research, EarlyView.
Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie, Nilo Mata‐Cervera, Xi Xie, Yijie Shen   +3 more
wiley   +1 more source

Colloquium: Quantum interference of clusters and molecules

, 2012
We review recent progress and future prospects of matter wave interferometry with complex organic molecules and inorganic clusters. Three variants of a near-field interference effect, based on diffraction by material nanostructures, at optical phase ...
Berman, P., Berman, P. R., Berry, M., Bohr, N., Born, M., Clauser, J., De Heer, W. A., Dubetsky, B., Feynman, R., Joos, E., Klaus Hornberger, Markus Arndt, Patorski, K., Philipp Haslinger, Rauch, H., Schleich, W. P., Schlosshauer, M., Schmiedmayer, J., Scoles, G., Stefan Gerlich, Stefan Nimmrichter, Stibor, A., Talbot, H. F.   +22 more
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Prediction of effective Lens position using anterior segment optical coherence tomography in Chinese subjects with angle closure

BMC Ophthalmology, 2021
Purpose To assess the accuracy of biometric parameters measured by anterior segment optical coherence tomography (AS-OCT) and partial coherence interferometry (PCI) in prediction of effective lens position (ELP) compared with previous formulas in PACG ...
Yuzhou Wu, Shunhua Zhang, Yong Zhong, Ailing Bian, Yang Zhang, Zaowen Wang   +5 more
doaj   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source