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dumb laser question

dumb laser question - Chemistry Forum

dumb laser question - Chemistry Forum. Discuss chemical reactions, chemistry.


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  #11  
Old 02-20-2004, 01:28 AM
Mark Folsom
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Default dumb laser question

"Richard Schultz" <[Only registered users see links. ].ack.il> wrote in message
news:c125e3$opk$[Only registered users see links. ].ac.il...
has
If
the
fell

Does the decomposed state absorb the laser radiation?

Mark Folsom


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  #12  
Old 02-20-2004, 02:16 AM
Josh Halpern
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Default dumb laser question



Franz Heymann wrote:

SNIP.....


It is trivial. The interesting thing is that of all the lasers, you
could have made a CO2 laser in about 1890. You take a glass tube with
two electrodes and attach it to a HV transformer (one used for neon
signs will do). put NaCl windows on the tube, pump down, and start a
flow of the gas (a mixture of N2, CO2 and He for the balance) I forget
the operating pressure but just about anything in which you can strike
the discharge works. get some gold coated mirrors. Drill a hole in the
center on one. It is best if you have spherical mirrors so you can set
up a (near) confocal cavity. Align the mirrors and if your tube is long
enough (~1 meter) you can burn holes through bricks

If I were going to look for such a thing, I would look at processes in
laser dyes. Here is something close
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josh halpern




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  #13  
Old 02-20-2004, 03:42 AM
Steve Turner
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Default dumb laser question

Josh Halpern <[Only registered users see links. ]> wrote:


If it were that easy you'd have expected roughly 25% of teenage boys
to be doing ...ummm... "laser surgery" on the neighbor's cats by now.

Or maybe they're all focusing on "news2020" (see electronic NGs for
context).

Steve Turner

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  #14  
Old 02-20-2004, 04:28 AM
Josh Halpern
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Default dumb laser question



Steve Turner wrote:

Having done it in 1973, it is that easy. Of course catching the cats
can be hard. The trick, of course, such as it is, is knowing the gas
mixture to use. Lining up is easy with a HeNe but a
collimated.incoherent source will do.


Context. We don't do no damn context here.

josh halpern


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  #15  
Old 02-20-2004, 09:00 PM
Franz Heymann
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Default dumb laser question


"Steve Turner" <[Only registered users see links. ].net> wrote in message
news:[Only registered users see links. ]...

It actually is as easy as that.

Franz



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  #16  
Old 02-22-2004, 06:39 PM
Mark Folsom
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Default dumb laser question

"Richard Schultz" <[Only registered users see links. ].ack.il> wrote in message
news:c19dia$s97$[Only registered users see links. ].ac.il...
which

Then it's effectively a three state laser.

Mark Folsom


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