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Old 11-20-2013, 03:02 AM #65
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Default Re: 594/604/612/633 RAMAN maybe?

So in a nutshell.

REO used a Penning mixture of 0.5% argon in their neon, for lower ionization temps in their Ne II indicator lamps. A penning mixture is a mixture of gases with another gas, used to lower the ionization temperature of the first. So they used this method to make make their Ne II lamps easier to fire. This can lead to what's known as "Penning ionization". Which is where the Ar is ionized based on the Ne.

So the hypothesis is that REO, without considering or QC'ing (quality checking) their decisions, used this same neon in a few HeNes.

This results in a large amount of the neon Penning mixture, resulting in the Penning ionization of the argon.

Argon just so happens to have an Ar I line at 609.07nm.

This phenomena has been documented before, but not in HeNe tubes. Just in outside experimentation.


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HeNe/gas reference thread

Last edited by bloompyle; 11-20-2013 at 03:03 AM.
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Old 11-20-2013, 03:21 AM #66
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Default Re: 594/604/612/633 RAMAN maybe?

So this is like a HeNe-argon laser
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Old 11-20-2013, 03:23 AM #67
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Default Re: 594/604/612/633 RAMAN maybe?

Well when you put it like that..yeah. HeNeAr.
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405nm 500mW
442nm 15mW Melles Griot HeCd
445nm 1W
455nm 100mW LaserBTB
457nm Tunable OMNI 532
465nm Tunable OMNI 532
467nm 1.8W NDB7675
472nm Tunable Omni 532
473nm 2x 100mW Melles Griot lab heads w/ PSUs
476nm Tunable OMNI 532
488nm Single line 35mW
496nm Tunable OMNI 532
502nm Tunable OMNI 532
514nm Tunable OMNI 532
520nm 40mW MSV2
532nm Various pointers
543nm GreeNe 2mW
568nm ~20mW ArKr whitelight line
589nm 126mW PGL-III-C
594nm Rigel-6; 4.75mW + <1mW
604nm 2x <1mW multiline
609nm Ne Penning mixture Ar line from REO 612nm
612nm HeNe 1mW ML 4 line; Raman 6 line
629nm <1mW Raman 6 line
633nm 1-4mw red HeNe
635nm Raman 6 line
638nm 20mW single mode
640nm Raman 6 line
647nm ~10mW ArKr whitelight Kr line
650nm Raman 6 line
658nm LPC-826
685nm 20mW
808nm Modded NewWish pen


HeNe/gas reference thread
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Old 11-20-2013, 04:00 AM #68
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Default Re: 594/604/612/633 RAMAN maybe?

for some reason i said it like a pirate. Then i started giggling because its late and i cant think straight.

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