Mary Johnson writes:
> Richard Ginn wrote:
> > We can get the laser, and now we need to know how to learn about Raman
> > scattering and how to use that to determine the particle size and
> > concentration of CS.  Anyone have a pointer to info?
> 
> * Are you speaking of a laser pointer? I put out a question concerning
> Bob Beck's statement in his 3/96 lecture, regarding use of a laser
> pointer to do something, he didn't say, concerning CS.  I look forward
> to info, as well.
> MK Johnson / Kalispell, Montana USA / [email protected]

A laser-pointer may do the job(*) but the one I have access to is bigger
(though perhaps not better(*):

* = The job is to send a beam of laser light through a sample of CS and
determine the characteristics of the CS by analyzing the pattern of
scattered light coming out the other side of the sample (in a clear
container).

Lasers have a few main characteristics, one of them is "stability" - which
is how well they stay in the same frequency and mode/phase.  If the laser
keeps changing phases and modes it may be more diffecult to interpret the
scattering.  Some lasers are "mode locked" and some are not.  I will find
out about all this and report back to the group here in detail.

It could be that the cheap laser pointers (about us$50) will do the job
well.  Interpretation is another matter, stay tuned...
-- 
Richard [email protected]