Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here -- Ignore unavailable to you. Want to Upgrade?

To: Stephen L who wrote (5504)	10/7/1999 5:57:00 PM
From: Bernard Levy	Read Replies (2) \| Respond to of 12823

Hi Steve: If you look at my earlier post, I contrasted solitons, which propagate in nonlinear media with the new solutions proposed for linear media about 10 years ago, which are also localized.in space and time, although they ultimately break down (unlike solitons). A good starting point is the article by Richard Ziolkowski: ``Localized transmission of electromagnetic energy' published in Phys. Rev A in February 89. Many other researchers (see references in the above paper) have published papers on this topic. If you have seen the decay of the waves created by throwing pebbles into a lake, you will wonder how is it possible to avoid this decay? The answer is that the localized solutions are not created by a single radiating source, but by several sources which interact additively and destructively so as to create a coherent pulse which does not change too much over a long range. Ziolkowski was at Lawrence Livermore Nat Lab where he had an acoustic testbed that he was using to demonstrate his work. He then moved to the Univ of Arizona-- I do not know if he is still there. I am almost certain that some classified research based on this work has taken place--I got a very strange reaction from an AFOSR program manager when I tried to steer the conversation towards electromagnetic bullets a few years ago. Best regards, Bernard Levy