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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...
LuxQuanta, a company specializing in quantum network security, recently announced the successful completion of an 8 million euro Series A funding round. This round of financing is led by Big Sur Ventures, with A&G as the main investor providing support. New investors include GMV, Wayra, and EIC Fund, as well as existing investors Corning and GTD.The investment is bolstered by the soft financin...
OLED is located at the top and is formed by an organic layer between the contacts. Apply voltage to it, inject charge and generate light, which in turn excites organic laser. Organic lasers contain a grating that can generate feedback and diffract some of the laser out of the structure.Organic laserResearchers have created the first organic semiconductor laser to operate without the need for a sep...
On quartz sheets, the angular rhombic boron nitride crystals with a thickness of only 1 to 3 microns are as thin as cicada wings, but their energy efficiency is 100 to 10000 times higher than traditional optical crystals. At the opening ceremony of the 2024 Zhongguancun Forum Annual Conference held on April 25th, the world's thinnest known optical crystal was listed as one of the top ten technolog...
Scientists from the University of Hahn in Spain and the University of Santiago de Compostela conducted research to determine the most suitable semiconductor materials for high-power light transmission in terrestrial and underwater environments.HPOT, also known as laser power transfer, is a method of transmitting continuous power to a remote system using a monochromatic light source through an opti...