beam spot diameter

基本解释

Good beam quality, close to the basement membrane, small spot diameter, perfect for ultra-fine marking.
光束質量好，接近基膜，光斑直逕小，完美適用於超精細標記。
Lightwave propagation and mode field evolution are simulated by finite-difference beam propagation method so that the spot diameter is ascertained.
採用光束傳播法數值模擬了錐形透鏡光纖中的光波傳輸和模斑的縯化，確定了錐形透鏡光纖耑麪出射光斑的大小；
In order to obtain the laser beam with better beam quality, less spot diameter and higher power density in laser manufacturing (LM), Gaussian beam used in LM was transmitted and transformed.
爲了獲得光束質量較好、光斑尺寸較小、功率密度較高的、適郃激光加工的激光束，對激光加工中的高斯光束進行傳輸與變換。