this is not easy though...... UO}Kk* ANh5-8y I guess you need to give a try as sigma indicates the projected width of 1/e squared value of the peak irrdiance in direction cosine space...... for a normally incidence it should be around ~ cosine 85. Good luck !
Hi MANG2004, Kx 6_Vp )RlaVAtM I am curious about your calculation, too. Plus, the definition of σ refers to 1/e^2 width not the FWHM. Even your calculation/defintion is correct. I have a doubt that it will work when the specualr incident ray angle is not normal......... M")v ph^ 7,ODh-?ez For thsoe who knows it better, please have some input. I am rather curious, too!! Thanks!!
Hi, hopebox, Zr'VA,v 98bmia&H Thanks for your reply. Really like those words “guess”, “doubt”… yef@V2Z+ d$g-u8 For your curiosity, have good luck! %WHue yL&F!+(/Ix MANG2004 N5[QQtQ