Look at http://www.virginiasemi.com/pdf/ Optical%20Properties%20of%20Silicon71502.pdf Chris On Tuesday, June 22, 2004, at 07:57 PM, Sachin Tyagi wrote: > hi > i am looking for the value of absorption coefficient of silicon at > 1.55 > microne,so if any body can help me,i will be very thank full to him, > > thanks to all > wating for postive reply from any one > > > sachin tyagi > indian institute of technology > madras(chennai),india -- Christopher F. Blanford Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK Phone: +44 (0)1865 282603; Fax: +44 (0)1865 272690 PGP keyID: 8D830BC9 http://pgp.mit.edu/