Now you're touching on a subject that I've been pondering for a while but can't
seem to find anything of value to read in the public domain.
You mentioned red laser becoming less apparant, but 405nm blue DOES show up.
I'm still curious to know if there are any methods of home determination of
particle size approximation using laser lights, red or green or blue or
whatever other colour which *could* indicate a particular nm range in the
colour spectrum. If light can be used to determine approximate particle size
is it possible one can make use of differing laser colours to approximate
particle size in solution?
Praps you could help me out with this:
I got three red lasers,
(1) 650nm+/-10 maximum output 1mW.......{bright beam passing thru liquid}
(2) 650nm+/-10 maximum output 5mW.......{beam of lesser brightness}
(3) 630-650nm maximum output 1mW........{no beam at all}
Is there anything you can tell me regarding the differences in beam strength
between these lasers, all shone thru the same solution? Particularly the last
one with no beam at all.
N.
Date: Tue, 13 Apr 2010 00:44:19 -0700
From: dokdal...@yahoo.com
Subject: Re: CS>where is everyone?/..."TAITP~WBSF"?
To: silver-list@eskimo.com
FYI: Using a Blue 405-nm Laser, or even Green LD...can-detect smaller...Size!
Have gone down to 385-nm (non-laser) light source, using special TRIX & PMT.
(Not sure Particle(s) Size PEAKING at 405 nm, but-maybe...Marshall knows?)
Tyndall will become LESS apparent (using RED), but 405~Blue still Detecting!
As long as it's only-slightly Yellow (and don't Smell/Taste like P*ss), it's
GQQD
to use for ANY application you wanted, but for INTERNAL use...It's UP-to user?
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