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Author: Subject: Laser design
halogen
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[*] posted on 30-10-2005 at 12:10
Laser design


I am currently interested in making a laser. My preliminary design includes a potassium permanganate solution and a/some xenon strobe light(s).

1. Would the lasing medium work?
2. Are there other cheap mediums?
3. Could the design work at all?
4. Would I be better off making a gass laser? (CO2 or perhaps N2)
5. If so how could I achieve sufficient power. I have access to an old tv, but not much else electronicswise.
6. In any case; where might I get a semi silvered mirror OR how to make one cheaply?




F. de Lalande and M. Prud'homme showed that a mixture of boric oxide and sodium chloride is decomposed in a stream of dry air or oxygen at a red heat with the evolution of chlorine.
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Marvin
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[*] posted on 30-10-2005 at 19:58


I think it very unlikely your idea would work.

The important question is what do you want the laser to do?
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halogen
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[*] posted on 31-10-2005 at 08:07


To emit light in phase at a lowered budget. You know - bragging rights...



F. de Lalande and M. Prud'homme showed that a mixture of boric oxide and sodium chloride is decomposed in a stream of dry air or oxygen at a red heat with the evolution of chlorine.
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12AX7
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[*] posted on 31-10-2005 at 10:38


Well first of all, #3 is your biggest obstacle. Some water-soluble pigments and fluorescents can lase, but I haven't heard of KMnO4 for this purpose.

You certainly can make a laser at home and, some day, sooner or later, I'll do it myself. I'll probably start by finishing the N2 laser in the college physics lab that some student didn't complete...

CO2 would be nice but you need exotic IR lenses and mirrors. Would be kickass to have a 10-20W CO2 laser on hand to burn metals and whatnot though :D Hook it up to a CNC table and viola.

Tim




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Marvin
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[*] posted on 31-10-2005 at 12:05


Laser pointers are very cheep but leave nothing for bragging rights anymore.

You'd have to work very hard to make a laser more impressive than a a $5 laser pointer.
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[*] posted on 31-10-2005 at 13:21


Sam's Laser FAQ is the best single web resource I have ever found for home built lasers. Go read, and enjoy!



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