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When scientists discovered that laser pulses can rapidly cause refractive index changes in the medium, resulting in "photonic time crystals (PTC)" in the near-visible light band, the door to a disruptive new application in optics seemed to quietly open.Scientists have a certain degree of understanding of photonic crystals and time crystals, the two have almost nothing in common, the basic common p...
Researchers at the University of Waterloo's Institute for Quantum Computing (IQC) have developed a new technique that uses lasers to control individual qubits made from the chemical element barium. The breakthrough is a key step toward realizing the capabilities of quantum computers.The new technique uses thin glass waveguides to segment and focus laser beams with unprecedented precision. Each foc...
Casir is about to launch the H6 4K UST tricolor laser projector through Indiegogo. The new laser projector has a brightness of up to 3000 ANSI lumens and a BT.2020 color gamut coverage of 110%. It is an ultra short focus projector that runs on Android TV.The Casiris H6 4K UST tricolor laser projector is a brighter and more accurate version of the Casiris A6. It also has greater image projection ca...
The pump source, gain material, and resonant cavity are the three elements that make up a laser. Due to the selective effect of the resonant cavity on the lasing frequency, multi longitudinal mode operation is one of the characteristics of fiber lasers based on traditional resonant cavity structures, manifested as periodic beat peaks in the radio frequency (RF) spectrum and periodic fluctuations i...
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...