this is not easy though...... UqOBr2UmG mdWA5p( 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, ';tlV
u qGk.7wf% 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......... >)kKP8l7 l<v{8:,e # For thsoe who knows it better, please have some input. I am rather curious, too!! Thanks!!
Hi, hopebox, 4uXGpsL h`&TDB2 Thanks for your reply. Really like those words “guess”, “doubt”… %xkuW]xk aTvyzr1 For your curiosity, have good luck! ^E70$yB^ =XfvPBA MANG2004 QVT0.GzR