GBPS ? GBSS ?

tony33

<>Hi </P>
<>GBPS : Gaussian beam (paraxial) spot size</P>
<>GBSS : Gaussian beam (skew) spot size</P>
<>What's the different between paraxial and skew ?</P>
<>So confuse ... </P>
<></P>
<>Could you do me a favor ?</P>

tony33

<>as i know :</P>
<>"paraxial" is for the no abberation optics, is it right ?</P>
<>and how about "skew" ? </P>

stevenwu

一个是近轴的，一个是轴外的