Neat idea! Here's a couple of problems that occur to me immediately. The first is uniformity. On the microscale the plasma in a plasma display panel is not very homogeneous. So within a given pixel there is a large variation in electron density. Second, I suspect that in order to reach the electron densities required to make the plasma reflective in the near IR (for telecom) you would have to have a plasma with an electron density comparable to that of an arc discharge. Of course such a thermalized plasma would emit all over the IR and would swamp out any signal. That is just a guess, I'm no plasma physicist. -Mike Martin U. of Louisville >>> ToddSicklinger@aol.com 01/28/05 2:16 PM >>> I'd like to get your thoughts on using a plasma field instead of a traditional minor to reflect the light in an optical switch.