<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">For your purpose, I think QE + Yambo will help you a lot~<br><br><div>--<br>GAO Zhe<br>CMC Lab, Materials Science & Engineering Department,<br>Seoul National University, South Korea<br>        
 </div><div id="divNeteaseMailCard"></div><br>At 2012-08-05 19:38:46,"Sohail Ahmad" <sohailphysics@yahoo.co.in> wrote:<br> <blockquote id="isReplyContent" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font: inherit;" valign="top">Dear All<br>I am using QE 4.2.1<br>I would like to know that <br><br>can we use QE to calculate optical properties.....dielectric function,energy loss function,absorption and reflectance spectra<br><br>Sohail<br>KKU<br>Saudi Arabia<br></td></tr></tbody></table></blockquote></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>