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473nm [BLUE] .VS. 603nm [YELLOW]

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Cyparagon

Cyparagon

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This is the first I've heard of a multi-line HeNe.

Many (most?) gas and solid state lasers can have 2 or more lines. Copper vapor has 510 and 578, CO2 has both ~9400 and ~10600nm, even the Nd:YAG we're familiar with has several IR lines.
 





Trevor

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Cyparagon said:
This is the first I've heard of a multi-line HeNe.
Click to expand...

I think the transitions fight for energy, so with these tunable ones I think they're multicoated but you use the prism to select which line actually gets to resonate?

I believe there can be a multiline HeNe, but it's erratic in terms of what lines lase and how much energy each one gets.

-Trevor
 
Trevor

Trevor

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Leodahsan said:
one used to greenies (1064) and other used for bluies (946). Right?
Click to expand...

The crystals can also lase on 1342 for red, 1342 + 1064 for 593.5, 1319 + 1064 for 589, and many other combinations.

-Trevor
 
Leodahsan

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twhite828 said:
This thread is devoted to lasers that mostly aren't "available" to hobbyists.

-Trevor
Click to expand...

I've mean that I've never seen someone build a homemade yellow pointer (not using beam combining :p) or a red dpss, etc..
 
Trevor

Trevor

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Leodahsan said:
I've mean that I've never seen someone build a homemade yellow pointer (not using beam combining :p) or a red dpss, etc..
Click to expand...

No one builds 604nm or 612nm HeNe's either, and we're still talking about them...? :thinking:

-Trevor
 
aryntha

aryntha

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As for -- multiline/tunable HeNe, or just 611 or just 604, I'd say "any or all of the above".

If the multilines/tunables are available, that means they have to still be manufactured (By REO) - because they cannot sit on a shelf in "new old stock" without becoming useless.

So maybe it's time to reapproach REO about single line 611.9, too. They told me they were unavailable, but "available" may have differing meanings depending on who's asking.

Does anyone here know anyone associated with REO? I'm local to them, but I got pretty well stonewalled, told that 612 is simply not obtainable.
 
Ash

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