<html><head><style>p{margin-top:0px;margin-bottom:0px;}</style></head><body><div style="font-size:10pt; font-family:Gulim, sans-serif;"><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><span style="font-size: 13.3333px;">Dear GATE users,</span></p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><span style="font-size: 13.3333px;"> </span></p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><span style="font-size: 13.3333px;">I am trying to simulate Gate optical using a UNIFIED model. </span></p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><span style="font-size: 13.3333px;">I would like to design the retroreflector. </span></p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><font face="돋움, Dotum, Helvetica, Apple SD Gothic Neo, sans-serif"><span style="font-size: 13.3333px;">Is it correct to use BACKSCATTERCONSTANT and REFLECTIVITY in Surfaces.xml?</span></font> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><font face="돋움, Dotum, Helvetica, Apple SD Gothic Neo, sans-serif"><span style="font-size: 13.3333px;"><br></span></font></p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><span style="font-size: 13.3333px;">Thanks for your help every time.</span> </p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><span style="font-size: 13.3333px;">Best regards,</span></p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><span style="font-size: 13.3333px;"> </span></p><p style="font-family: 돋움, Dotum, Helvetica, "Apple SD Gothic Neo", sans-serif; font-size: 12px;"><span style="font-size: 13.3333px;">Suhwan Kim</span></p></div></body></html><table style='display:none'><tr><td><img src="https://mail.naver.com/readReceipt/notify/?img=CPK9FAicbrn%2FhAn%2FFquda6kvF4iCKqEwFrtZFzEZaAKqMxJvaxpoKqtZK4ivMvIo%2BrkSKAuZ74lR74l4b4u516YQar%2BC%2BzER%2BBF0bNFgWz0q%2BHK5WXI0W4%2BC%2BzkoWrwnM6iTb4Jd16e574eZpm%3D%3D.gif" border="0"/></td></tr></table>