Natural Science Forum / Physics / Optics / January 2005

I just got my green Leadlight <5mW green laser.  I turned the screw
clockwise until it didn't light anymore, then turned it back slightly so it
would light.  It seemed to get brighter.  I have heard about people cutting
black plastic garbage bags by doing this, either they are ...

I have a question about DMX scanning lasers.  Some of these scanners
have the x and y axis's available on DMX channels.  Does this mean with
DMX controller I could perhaps hook up the output of Amiga 500 and
control the beam via computer?

I have Ando AQ6317 Optical Spectrum Analyzer for sale. Send questions
to emballagellc@yahoo.com

Does anybody knows where I could order (used or new), fiber holders for an
ERICSSON
Splicer FSU-925PMA ??? Too many providers seems to have died ...
These are holders with a 250um V-groove and a magnet.

A New Jersey man was charged Tuesday under federal anti-terrorism laws
with shining a laser beam at a charter jet flying over his home,
temporarily distracting the pilots.
If convicted of anti-terrorism violations, David Banach of

I need to find out about a LASER Application that will allow me to cut
through a 0.3mm or 30microns Thick Polyester / Nylon Film for a Textile
Application that i want to make.
The Diameter of the Hole to be cut would be around 4.5 / 5.0mm

I've got an Oriel 7240 monochromator here with a 150 line/mm, 4 micron
grating in it.  I'd like to find a 1200 l/mm grating, preferably blazed
for 700nm since I'm most interested in 600-900nm.  Does anyone have one
for sale (or trade for my 150 l/mm grating)?

I am looking at this laser on eBay, and I was wondering if it was a
good price for such a unit. Here is the link:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=53141&item=3869944182&rd=
1&ssPageName=WDVW
I am not sure what complete lasers with power supplies and everything

Anyone else get bugged by laser being spelt with a "Z" ?
M

I'm looking around, and I see numerous laser "projectors".. that is,
small sound-activated and dmx controlled no-name laser effects being
sold for really low prices.. Like $650-700US for 200mw green, <$1000US
for 50mw blue.. and this is the whole unit, not just the laser itself.

  I realize this is a long shot, but here goes...
  The university research lab I'm in recently acquired a Gaertner
L104SA ellipsometer.
  Unfortunately, it didn't come with an operating manual.

A New Jersey man was charged Tuesday under federal anti-terrorism laws
with shining a laser beam at a charter jet flying over his home,
temporarily distracting the pilots.
If convicted of anti-terrorism violations, David Banach of

I won't be travelling to Australia; however wanted to ask what's Your
problem with  Candelas ? I'm related to this equipment.
LesioQ

The pulsed laser (Nd:YAG)output beam intensity seems to fluctuate a
little bit.
My quesiton is if the Q-switch delay time would affect? In principle i
can set up different delay time. I dont really understand what the

The crystal is optically damaged by the laser beam. Buying it brand-new
from the laser company is very expensive, $3075.
My laser is Q-switched Nd:YAG pulsed laser (Continuum, Surelite I).
Anyone knows where i can get a quality and cheaper one?