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The blue laser is a device that emits a light beam in the wavelength range between 400 nm and 500 nm, visible as violet or blue to the human eye. The light beam produced is temporally coherent and can be well-collimated, which allows it to have numerous applications in industry and science.
A blue laser emits electromagnetic radiation with a wavelength between 400 and 500 nanometers, which the human eye sees in the visible spectrum as blue or violet. [1] Blue lasers can be produced by: direct, inorganic diode semiconductor lasers based on quantum wells of gallium (III) nitride at 380-417nm [2][3] or indium gallium nitride at 450 nm.
In laser lighting applications, the laser lighting sources use blue laser to excite phosphors to produce white light, which can achieve higher power density and farther illumination distance and can be used in laser headlights, remote search, and many other fields. Challenges in Beam Shaping of Blue Diode Lasers
A blue laser is a type of laser that emits light in the wavelength range of 470–504 nm, which is particularly useful for deep-sea exploration, submarine communication systems, and medical applications such as surgical operations and early cancer treatment. AI generated definition based on: Progress in Quantum Electronics, 2018. About this page.
27 paź 2023 · As an emerging field, blue laser beam shaping faces new challenges in beam shaping compared with infrared laser beam shaping: 🔹The absorption rate of commonly used optical materials in the blue spectrum is higher than that in the near-infrared spectrum.
The adoption of the blue laser is driven by two primary characteristics: the fundamental physics of absorp-tion, and laser design that delivers high power density. Copper absorbs blue light far better than it absorbs other wavelengths, both infrared (IR) and visible. That leads directly to per-formance advantages for materials processing.
Panasonic have created a new blue-light indium gallium nitride laser (top left) using a lateral-corrugated waveguide (bottom left), which improves beam quality.
