About: Tophat beam

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In optics, a tophat (or top-hat) beam such as a laser beam or electron beam has a near-uniform fluence (energy density) within a circular disk. It is typically formed by diffractive optical elements from a Gaussian beam. Tophat beams are often used in industry, for example for laser drilling of holes in printed circuit boards. They are also used in very high power laser systems, which use chains of optical amplifiers to produce an intense beam. Tophat beams are named for their resemblance to the shape of a top hat.

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  • In optics, a tophat (or top-hat) beam such as a laser beam or electron beam has a near-uniform fluence (energy density) within a circular disk. It is typically formed by diffractive optical elements from a Gaussian beam. Tophat beams are often used in industry, for example for laser drilling of holes in printed circuit boards. They are also used in very high power laser systems, which use chains of optical amplifiers to produce an intense beam. Tophat beams are named for their resemblance to the shape of a top hat. (en)
  • 平頂光束是一種在圓形區域內有幾乎一致通量（能量密度）的雷射光束或電子束。一般是由高斯光束經過繞射光學元件而產生。平頂光束常用在工業上，例如在印刷電路板中的。平頂光束也常用在高功率的雷射系統中，這類系統利用一連串的光放大器產生強烈的光束。 (zh)
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  • In optics, a tophat (or top-hat) beam such as a laser beam or electron beam has a near-uniform fluence (energy density) within a circular disk. It is typically formed by diffractive optical elements from a Gaussian beam. Tophat beams are often used in industry, for example for laser drilling of holes in printed circuit boards. They are also used in very high power laser systems, which use chains of optical amplifiers to produce an intense beam. Tophat beams are named for their resemblance to the shape of a top hat. (en)
  • 平頂光束是一種在圓形區域內有幾乎一致通量（能量密度）的雷射光束或電子束。一般是由高斯光束經過繞射光學元件而產生。平頂光束常用在工業上，例如在印刷電路板中的。平頂光束也常用在高功率的雷射系統中，這類系統利用一連串的光放大器產生強烈的光束。 (zh)
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  • Tophat beam (en)
  • 平頂光束 (zh)
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