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Light has angular momentum properties. Circularly polarized or elliptically polarized beams carry spin angular momentum (SAM), while beams with helical phase wavefronts carry orbital angular momentum (OAM). During the interaction between light and particles, the transfer of angular momentum can generate optical torque, driving particles to rotate. Among them, the transfer of optical spin angular m...
The British engineering and construction company Metz Group has a delegation in Spain to be responsible for the expansion and renovation of the central laser facility at Rutherford Appleton Laboratory near Oxford. More commonly, the construction of the powerful laser Vulcan 20-20 has just been obtained, with a delivery date of 2029.It will emit a main excitation beam that is billions of times larg...
At the EPHJ exhibition, GF Machining Solutions will showcase its latest laser solutions for microfabrication and 3D surface texture processing. Inspired by 70 years of innovation in the machine tool industry and 15 years of mastery of laser technology, GF Machining Solutions' latest innovations enable manufacturers to take speed and accuracy to new levels - they can experience it firsthand at EP...
Researchers at the University of Sydney combined photon filters and modulators on a single chip, enabling them to accurately detect signals on the broadband RF spectrum. This work brings photonic chips closer to one day, potentially replacing larger and more complex electronic RF chips in fiber optic networks.The Sydney team utilized stimulated Brillouin scattering technology, which involves conve...
Recently, scientists used laser gyroscopes to measure that the change in Earth's rotational speed is less than one millionth. This technology can help scientists understand the complex flow of water and air, which can cause the smallest adjustments to the Earth's rotation.The Earth's rotation is not completely stable. Planets accelerate or slow down as they rotate, slightly shortening or prolongin...