Results 11 to 20 of about 221,747 (248)
Advanced Engineering Materials, EarlyView., 2023 A novel method for tracking structural changes in gels using widely accessible microcomputed tomography is presented and validated for various hydro‐, alco‐, and aerogels. The core idea of the method is to track positions of micrometer‐sized tracer particles entrapped in the gel and relate them to the density of the gel network.
Anja Hajnal +3 more
wiley +1 more source
Communications Physics, 2023 Air lasing is a simple and promising technique to efficiently produce coherent light in the atmosphere. Yet, its capability to obtain structured light like optical vortices or vector beams is still unexplored.
Jingsong Gao +10 more
doaj +1 more source
Sensors, 2022 In current optical wireless communications (OWC) oriented research works, the various multiple input multiple output (MIMO) techniques are introduced and utilized to enhance the coverage performance.
Jupeng Ding +4 more
doaj +1 more source
Demonstration of speckle resistance using space–time light sheets
Scientific Reports, 2022 The capacity of self-healing fields to reconstruct after passing through scattering media may prove useful in reducing speckle formation. Here, we study the speckle response of the space–time (ST) light sheet compared to a Gaussian wave packet, Airy beam,
Mbaye Diouf +3 more
doaj +1 more source
Surface related laser induced white emission of Cr:YAG ceramic
Scientific Reports, 2021 In this work we report the white light emission in transparent Cr:YAG ceramic pellet upon irradiation with focused beam of CW infrared laser diode. It was found that this phenomenon is specifically related to interaction of laser beam with a surface of ...
M. Chaika, R. Tomala, W. Strek
doaj +1 more source
Diffraction of a Gaussian beam near the beam waist
Journal of the European Optical Society-Rapid Publications, 2019 The behavior of the light field near the beam waist has attracted considerable attention due to the studies of the light spin-orbit interaction: it’s manifestation as well as potential applications.
Evelina A Bibikova +2 more
doaj +1 more source
Determination of the beam waist position for the spin-orbit interaction effect observation
Компьютерная оптика, 2021 The spin angular momentum and the extrinsic orbital angular momentum of light are associated with the polarization of light and the light propagation trajectory, respectively.
E.A. Bibikova +3 more
doaj +1 more source
Transverse Electron-Beam Shaping with Light
Physical Review X, 2022 Interfacing electrons and light enables ultrafast electron microscopy and quantum control of electrons, as well as new optical elements for high-sensitivity imaging. Here, we demonstrate for the first time programmable transverse electron-beam shaping in
Marius Constantin Chirita Mihaila +5 more
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Nature Communications, 2017 Physical properties of glasses are closely related to their amorphous structures, which can form complex networks depending on the chemical constituents. Here, Onoderaet al.
Yohei Onodera +5 more
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Photon penetration depth in human brain for light stimulation and treatment: A realistic Monte Carlo simulation study [PDF]
Journal of Innovative Optical Health Sciences, 2017 Light has been clinically utilized as a stimulation in medical treatment, such as Low-level laser therapy and photodynamic therapy, which has been more and more widely accepted in public.
Ting Li +4 more
doaj +1 more source