beam center

基本解釋

The azimuthal phase term of the LG modes results in helical wave fronts. The phase variation along a closed path around the beam center is .
LG模的角向術(shù)語(yǔ)來(lái)源于螺旋波前，相變量沿著一條封閉路徑繞光束中心一周就。
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Results show that with the Gaossian beam's waist radius becoming smaller and interval between target image and gaussian beam center becoming bigger, output correlation peak value decrease.
為輸出高的相關(guān)峰值，擴(kuò)束準(zhǔn)直光學(xué)系統(tǒng)輸出的高斯光束腰斑半徑應(yīng)滿足一定要求。
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Results show that the three kinds of soliton with or without a loading resistor have a similar character in self deflection, i. e. , the solitary beam center moves on a parabolic trajectory.
結(jié)果表明，無(wú)論加載電阻與否，這三種類(lèi)型的光折變明孤子具有類(lèi)似的自偏轉(zhuǎn)特性，即孤子波沿一個(gè)拋物線軌跡運(yùn)動(dòng)。

On the grounds here you've got a stone from the Pentagon and a beam from the World Trade Center.
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