Researchers have successfully developed real-time adjustable plasma lasers
It is reported that a joint research team consisting of Northwestern University and Duke University successfully developed a real-time adjustable plasma laser using liquid laser gain materials. The study was published in the recently published issue of Nature Communications. With conventional laser technology, light can only focus on half of its frequency, the so-called diffraction limit. In response, scientists have found a way to break through this limit by creating plasma lasers that combine laser beams with plasmons (vibrating surface electrons) on the surface of metals (such as gold) in an array. However, this approach has its limitations as it has to rely on solid laser gain materials, resulting in a laser that is difficult to adjust and not real-time. The United Research team of the new research results, through the use of a liquid as a laser gain material method, to achieve real-time adjustment of the laser. The researchers used gold arrays, plasmonic nano-resonator arrays, and liquid dye solvents as gain materials to change the wavelength of the laser by changing the refractive index of the dye. Compared with solid-based gain materials, the new results have two main advantages: first, the dye can be rapidly dissolved in different solvents with different refractive indices and the laser can be adjusted in real time; and secondly, because the gain material is a liquid that can be passed The channel is filled into the cavity and can be dynamically changed by using different liquids. Zinc die casting is a manufacturing process that involves the production of complex and intricate metal components using zinc as the primary material. This Zinc Alloy Die Casting process is commonly used in various industries, including automotive, electronics, and telecommunications.
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