To: atm{at}shore.net
From: tkrajci{at}san.osd.mil
Reply-To: tkrajci{at}san.osd.mil


> From: "John Sherman" 

> >Finally, I've heard a lot of negative things about enhanced aluminum --
> >enough bad things that I wouldn't do it.
>
> I've heard that the thicknesses of the layers, if not done perfectly, can
> actually damage the figure of the mirror. Is that what you heard?

Check out these essays (at bottom of page) http://voltaire.csun.edu/roland/index.html

and the notes to the essays:
http://voltaire.csun.edu/roland/note.html

=============================================
Presented here is a small collection of essays covering various aspects of
optics and optical testing by Roland Christen of Astro-Physics. Some of
these essays were conceived and written as a single work by Mr. Christen
while others were compiled by the owner of this site from Roland's postings
to various discussion groups on the internet. Roland Christen in giving his
permission to publish this work, pointed out that the compiled pieces
"don't read like a polished essay (they appear to be somewhat out of
context)". The reader will no doubt find this to be true, however in
spite of this lack of polish, there is much valuable information to be
gained. In the near future the compiled essays will undergo some judicious
editing in order that they read with the same lucidity as Roland's original
work.
============================================

Some of the essays deal with coatings and scatter.  Others deal with optical testing.

Hope this helps,
Tom Krajci
Tashkent, Uzbekistan

--- BBBS/NT v4.00 MP