Laser capable of >400 deg. C

[gottaluvlasers]

Hey everyone.

I have a University here in the States that requires a laser that can heat a local area to >400 Deg. C

This is a quote from their E-mail...

"investigating material properties regarding the heating affects. I need a laser which can provide us local heating around 300 to 500 celcius degrees."

Any ideas? a CW laser in the 5W range is not even fractionally close enough for this type of heat factors correct? even if focused to a teeny tiny point?

I am guessing they will need something q-switched, pulsed, IR, CO2, something along those types of lasers right??

[ElektroFreak]

I'd think a CO2 laser, a high powered diode array up to 150W, or a ~30-50W q-switched YAG, maybe something like this.

[allthatwhichis]

I bet Clandestiny would have a CVL that would do the trick... Did they say what material they need to get that hot? I would think the material would be a very big factor in determining how big a laser is needed to get whatever material to >400 degrees...

[ElektroFreak]

I bet Clandestiny would have a CVL that would do the trick... Did they say what material they need to get that hot? I would think the material would be a very big factor in determining how big a laser is needed to get whatever material to >400 degrees...

Naturally the material is key, a very good point.. I would think IR would have a pretty diverse range of materials that it can heat well, but for some things visible is best, or UV..

[gottaluvlasers]

Thanks guys.

i am not sure what the material(s) are. It sounds to me like its a general requirement. I am sending an email to try and get more info.

-Marc

[daction]

might need water cooled mirrors

[300EVIL]

This will surly do what they are asking for as long as distance is not an issue and IR is acceptable.

http://www.youtube.com/watch?v=6Kh7LmzaTeM

For Sale!

[-bart-]

1. Define 'local'; 1µm³ can be local, 1cm³ can be local.
2. What is the sample composed of? Absorption is critical.
3. Does it have to be continuous heating or pulsed?
4. If pulsed, what duration.
5. What's the thermal conductivity of the sample and how well/badly is it isolated.
6. 300 to 500 Celsius degrees, does it have to be adjustable, at what stability, at what accuracy, at what repeatability?
7. ...and on and on.

[mixedgas]

Left you a message about a 100+ watt DEOS Co2 my company (not me, the folks I work for) have for sale.

Steve