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Old 06-05-2013, 06:29 PM #1
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Default Near UV lasers

Hi,
I'm currently looking for information about near UV (~300 nm) lasers. Specifically:

a) Is it possible to buy a 308 nm laser diode? If so, where?
b) If it is not possible to buy a diode, are there any options for a whole laser?
Thanks!


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Old 06-05-2013, 06:42 PM #2
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Default Re: Near UV lasers

That's an usual request for a wavelength. May I ask what you will be using that wavelength for?
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Old 06-05-2013, 06:58 PM #3
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Default Re: Near UV lasers

I'm doing physics research at a college and need a laser with a wavelength near the absorption max of a specific molecule.
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Old 06-05-2013, 07:02 PM #4
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Default Re: Near UV lasers

Very interesting. Some other veterans with more UV experience will chime in with more info. We usually use 405nm diodes in the hobby. I seem to remember reading about a 380nm (I think) that was available, but was very very expensive.

Hold on tight, someone will come along with more data.
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Old 06-05-2013, 07:04 PM #5
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Default Re: Near UV lasers

The lowest might be a TEA laser (320nm I think..) though it seems 308nm probably your absorption max...
I think the farthest "UV" diode commercially out there is ~375nm for maybe $4,000.

Edit: someone did
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Old 06-05-2013, 07:21 PM #6
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Default Re: Near UV lasers

You could get a 355nm UV or 266nm UV at dragonlasers.com or laserglow.com but as for precisely 300nm ish, hmm...
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Old 06-05-2013, 08:44 PM #7
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Default Re: Near UV lasers

Not gonna happen in laser form. Not unless you've got 5 figures to throw away. Use a mercury lamp.
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Old 06-05-2013, 08:51 PM #8
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Default Re: Near UV lasers

That was the second option. I figured I'd ask just in case there could be a laser option I hadn't found. Thanks!
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Old 06-05-2013, 09:02 PM #9
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Default Re: Near UV lasers

go to this link. scroll down to the "single color led's." it shows various wavelengths and their pricing

Thorlabs - Unmounted LEDs
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