Results 101 to 110 of about 2,342,784 (304)

Intensity-correlation synthetic wavelength imaging in dynamic scattering media

Nature Communications
Imaging through dynamic scattering media, such as biological tissue, presents a fundamental challenge due to light scattering and the formation of speckle patterns.
Khaled Kassem, Areeba Fatima, Patrick Cornwall, Muralidhar Madabhushi Balaji, Daniele Faccio, Florian Willomitzer   +5 more
doaj   +1 more source

The extinction distances for over a thousand planetary nebulae with Gaia measurements

Astronomy & Astrophysics
Context. Although Gaia has identified the central stars of planetary nebulae (CSPNe) for about 70% of known Galactic planetary nebulae (PNe), reliable distance estimates remain highly incomplete, with fewer than one quarter having accurate parallaxes ...
Deng Juan, Wang Shu, Jiang Biwei, Deng Licai   +3 more
doaj   +1 more source

Detection of second-order nonlinear optical magnetization by mapping normalized Stokes parameters [PDF]

, 2013
A measurable magnetic (nonlocal) contribution to the second harmonic generation (SHG) of nonmagnetic materials is an intriguing issue related to chiral materials, such as biomolecules.
Larciprete, Maria Cristina, Váró, György, Leahu Gregory, Sibilia, Concita, Gergely, Csilla, SIBILIA, Concetta, Fabio Antonio Bovino, Bovino, Fabio Antonio, Gyorgy Varo, Leahu, Gregory, Csilla Gergely, LEAHU, GRIGORE   +11 more
core   +1 more source

Symmetry‐Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies

Advanced Science, EarlyView.
A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Jie Yang, Pengyi Feng, Fei Han, Weijin Chen, Zhongwei Jin, Jincheng Ni, Yuanjie Yang, Anxue Zhang, Guy A. E. Vandenbosch, Niels Verellen, Ewald Janssens, Jiafu Wang, Benfeng Bai, Cheng‐Wei Qiu, Xuezhi Zheng   +14 more
wiley   +1 more source

Unveiling the Emission and Variation Mechanism of Mrk 501: Using the Multi-Wavelength Data at Different Time Scale

Universe
Variability study at multi-frequency provides us with rich information of the emission and variation mechanism for blazars. In this work, we present a comprehensive multi-frequency analysis of the high-synchrotron-peaked (HSP) blazar Mrk 501, using γ-ray,
Lizhi Liu, Yunguo Jiang, Junhao Deng, Zhaohao Chen, Chenli Ma   +4 more
doaj   +1 more source

The Determination of Precise Coordinates for Bohyunsan Optical Astronomy Observatory by GPS [PDF]

Journal of Astronomy and Space Sciences, 1995
We determined three dimensional precise WGS 84 coordinates if two points in Bohyunsan Optical Astronomy using the GPS. One if the two points is the center on the top of pier for 1.8m telescope, and the other one is placed on the hill beside the dome of 1.
Pil-Ho Park, Jong-Uk Park
doaj  

Multiphoton Quantum Reservoirs For Robust Multidimensional Computing

Advanced Science, EarlyView.
Projective measurements reveal hidden multidimensional quantum networks within classical multiphoton fields, enabling robust quantum reservoirs for room‐temperature quantum simulation, prediction, and information processing. These networks transform noisy classical photonic platforms into scalable quantum computational architectures.
Mingyuan Hong, Mario A. Quiroz‐Juarez, Riley B. Dawkins, Fatemeh Mostafavi, Jannatul Ferdous, Addison Wilberg, Blas M. Rodriguez‐Lara, Justin Woodring, Chenglong You, Roberto de J. León‐Montiel, Omar S. Magaña‐Loaiza   +10 more
wiley   +1 more source

Recognition of Lunar Tidal Wind Dynamo Currents in Geomagnetic Lunar Variations

Geophysical Research Letters
This work presents a global distribution of daytime lunar tidal winds at altitudes of 80–115 km based on Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics observation.
Y. H. Liu, A. M. Tian, C. Xiao, J. Liu, H. Su, Y. F. Lu, X. Ma, Q. Q. Shi, R. L. Guo, M. Y. Wang, Z. M. Hu   +10 more
doaj   +1 more source

Observation of Magnetic‐Anisotropy Crossover and High‐Temperature Skyrmions in the Dirac Magnet Fe3Ge with a Distorted Kagome Lattice

Advanced Science, EarlyView.
A temperature‐driven magnetic anisotropy crossover is revealed in the Dirac kagome magnet Fe3Ge with a distorted kagome lattice. The transition from easy‐plane to easy‐axis magnetic anisotropy stabilizes robust Bloch‐type skyrmions over an exceptionally wide temperature window of 375–650 K.
Yalei Huang, Xiaowei Lv, Bin Li, Chunqiang Xu, Dhanarajagopal Alltrin, Xiaoxuan Ma, Wanting Yang, Wei Zhou, Xiangzhuo Xing, Wen‐Chin Lin, Raman Sankar, Michael Smidman, Shixun Cao, Dong Qian, Renchao Che, Xiaofeng Xu   +15 more
wiley   +1 more source

Numerical simulations of beam propagation through optical turbulence for high-altitude platform crosslinks [PDF]

, 2004
In this paper we introduce a simulation method for modelling clear-air atmospheric turbulence effects for long horizontal stratospheric paths. Divergence angles of several hundred microradians in combination with link distances up to 800 km require to ...
Perlot, Nicolas, Jüngling, Ralf, Giggenbach, Dirk, Horwath, Joachim   +3 more
core