Try the Thermophysical Properties of Matter, Ed. Touloukian, Y.S., Purdue Research Foundation, Lafayette. 1976. The data is a little old (mostly collected in the 50's and 60's), but it's pretty comprehensive. There is also another article "Temperature-Dependent Emissivity of Silicon-Related Materials and Structures" by Ravindra, & etc. in the IEEE Transactions on Semiconductor Manufacturing. 11(1). Feb, 1998. P.30-?? If you have access to SciFinder Scholar database, you might want to do a search using that. It might point you to some more recent articles. If anyone else knows of any industry standard or other more recent and reliable sources, please do share... joyce At 08:05 AM 11/5/01 +0800, Tan Joo Lett wrote: Dear Folks Does anybody know where I can find optical transmission vs temperature curves for silicon? I have in mind 532nm and 355nm wavelengths. Joo Lett _______________________________________________ mems-talk@memsnet.org mailing list: to unsubscribe or change your list options, visit http://fab.mems-exchange.org/mailman/listinfo/mems-talk Hosted by the MEMS Exchange, providers of MEMS processing services. Visit us at http://www.mems-exchange.org/