X-Message-Number: 19683 From: Date: Sat, 3 Aug 2002 16:41:53 EDT Subject: phonon detector --part1_1b9.43d8074.2a7d9a11_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I have searched for elements readily found to build a phonon detector. This is a key element of an intensity interferometer brain reader. Such a detector would be a "quivering" nano-scale cantiever. It seems the simplest way to monitor its displacements is to put a micro mirror on it. That mirror woud be incuded in a Micheson interferometer. The quantiever coud be recovered from a TI micro-mirrors video projector. I have found in Edmund optical catalog a small interferometer to test the end surface of optical fibers. It seems both, this device and the TI element coud serve as a phonon detector demonstrator. In a brain reader, this assembly would be too bulky and too costly, (more than $ 3 000 each). The 1000 or so phonon detectors here would have to use a single large interferometer with 1 000 beams. Each such beam would be linked to a cantilever using an optical fiber. This system is very near what can be found in the active control of a directed energy laser weapon or an active optics telescope. May be a copy of an active mirror teescope system could be got in exchange for some parts or service on the astronomical imaging intensity interferometer... Yvan Bozzonetti. --part1_1b9.43d8074.2a7d9a11_boundary Content-Type: text/html; charset="US-ASCII" [ AUTOMATICALLY SKIPPING HTML ENCODING! ] Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=19683