>I'm sure you know this frequency will request very high >quality microwave guides, with gold plated surfaces and >mirror aspect quality. The guys here doing the terahertz stuff were using micromachined waveguides in semiconductors. We also have a special group doing THz waveguide stuff. See http://www.mmt.rl.ac.uk/ and http://www.startiger.org/thz.htm for examples. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist