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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...
Recently, SMART Photonics, a Dutch photonic integrated circuit manufacturer, announced a major decision to transfer its entire production capacity from 3-inch wafers to 4-inch silicon substrates, thereby expanding the production scale of photonic chips and significantly reducing chip prices.According to the company, SMART Photonics is one of the first photonic integrated circuit foundries to provi...
Beijing, April 1st (Reporter Liu Xia) - The world's most powerful laser has been activated recently. On March 31st, the Physicist Organization Network reported that the system can enable laser pulses to reach a peak of 10 terawatts (1 terawatt=100 terawatts=1015 watts) within 1 femtosecond (1000 trillions of a second), which is expected to promote revolutionary progress in multiple fi...
Recently, exail (formerly iXblue) announced the acquisition of Leukos, an optical company specializing in providing advanced laser sources for metrology, spectroscopy, and imaging applications.Leukos was founded by the French XLIM Institute (a joint research department of the French National Academy of Sciences and the University of Limoges), with over 20 years of professional experience in the re...
A new device composed of semiconductor rings generates pairs of entangled photons, which can be used in photon quantum processors.Quantum light sources generate entangled photon pairs, which can be used in quantum computing and cryptography. A new experiment has demonstrated a quantum light source made from semiconductor gallium nitride. This material provides a multifunctional platform for devic...