Hot Laser + Hot CPU = Cold CPU?!!

koslov · 08-20-2002, 04:17 PM

http://www.lanl.gov/orgs/pa/science21/LaserCooling.html

Here is a small little article I came across that explains how lasers can be used to cool solids. Their first experiment managed to cool a solid only 0.5F, but one of their more recent attempts succeeded in cooling the same solid 117F! Near the end of the article, they suggest applications in cooling modern semiconductors. Sweet!

bigben2k · 08-20-2002, 04:30 PM

Interesting, but as stated HERE (PDF file), this only applies in a vacuum environment.

It could be done as stated here . I'd certainly look forward to cooling a CPU to -100 deg C.

Joe · 08-20-2002, 04:49 PM

a vac. env? Hey I got a shopvac! sounds like we are good to go!

heheheh

bigben2k · 08-20-2002, 04:58 PM

He he... we wouldn't need cold cathodes anymore

Brians256 · 08-20-2002, 05:23 PM

Speaking of cold cathodes, though, that is a similar technology to what is being proposed by another company. Basically, they take semiconductor fabrication techniques to create very thin vacuum filled gaps. Then, applying current across the junction causes heat as well as electrons to move. Voila! A potential competitor to the peltier device, but (hopefully!) much more efficient. Efficient enough to compete with standard refrigeration, perhaps!

Now, THAT is what I'm looking forward to!

ssjwizard · 08-21-2002, 02:55 PM

the thing that brians256 is talking about is called "Thermotunnel technology" its being engenered by a company called cool chips. as far as a lazer cooling goes that would be pretty cool stuff to watch anyways

Puzzdre · 08-22-2002, 04:28 PM

exchange : will give one NEC he-ne 1 mW laser tube with power supply and a case of beer for one NdYAG laser (power supply appriciated)

WebMasta33 · 08-22-2002, 11:34 PM

Only in a vaccum? So how much room do you need? I mean, could you have the plate which holds the vaccum 1mm above the processor, and it still works?

Brians256 · 08-26-2002, 12:14 AM

Did you read where it said that the max power transferred was some ridiculously small number? This is not even proven to work as well as blowing hard on a wet towel.

08-20-2002, 04:17 PM	#1
koslov Cooling Savant Join Date: Jul 2002 Location: Posts: 264	Hot Laser + Hot CPU = Cold CPU?!! http://www.lanl.gov/orgs/pa/science21/LaserCooling.html Here is a small little article I came across that explains how lasers can be used to cool solids. Their first experiment managed to cool a solid only 0.5F, but one of their more recent attempts succeeded in cooling the same solid 117F! Near the end of the article, they suggest applications in cooling modern semiconductors. Sweet!

08-20-2002, 04:30 PM	#2
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Interesting, but as stated HERE (PDF file), this only applies in a vacuum environment. It could be done as stated here . I'd certainly look forward to cooling a CPU to -100 deg C. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

08-20-2002, 04:49 PM	#3
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	a vac. env? Hey I got a shopvac! sounds like we are good to go! heheheh __________________ Joe - I only take this hat off for one thing... ProCooling archive curator and dusty skeleton.

08-20-2002, 04:58 PM	#4
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	He he... we wouldn't need cold cathodes anymore __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

08-22-2002, 04:28 PM	#7
Puzzdre Cooling Savant Join Date: Aug 2002 Location: Croatia Posts: 969	exchange : will give one NEC he-ne 1 mW laser tube with power supply and a case of beer for one NdYAG laser (power supply appriciated) __________________ 'Out of cheese error... ...please reboot the universe (press the GBL to continue)'

08-20-2002, 05:23 PM	#5
Brians256 Pro/Staff Join Date: Oct 2001 Location: Klamath Falls, OR Posts: 1,439	Speaking of cold cathodes, though, that is a similar technology to what is being proposed by another company. Basically, they take semiconductor fabrication techniques to create very thin vacuum filled gaps. Then, applying current across the junction causes heat as well as electrons to move. Voila! A potential competitor to the peltier device, but (hopefully!) much more efficient. Efficient enough to compete with standard refrigeration, perhaps! Now, THAT is what I'm looking forward to!

08-21-2002, 02:55 PM	#6
ssjwizard Cooling Neophyte Join Date: Aug 2002 Location: new mexico Posts: 21	the thing that brians256 is talking about is called "Thermotunnel technology" its being engenered by a company called cool chips. as far as a lazer cooling goes that would be pretty cool stuff to watch anyways

08-22-2002, 11:34 PM	#8
WebMasta33 Cooling Savant Join Date: Dec 2001 Location: Nebraska Posts: 526	Only in a vaccum? So how much room do you need? I mean, could you have the plate which holds the vaccum 1mm above the processor, and it still works? __________________ ========== --Soyo KT333 DRAGON Ultra (Platinum Edition) --AMD 1.4 @ 1.54 (11x) --768mb of PC2100 (@140FSB) --Asus v8200 GeForce3 @ 210/490 --Maxtor 40gb Quiet + 2 IBM 40gb 60GXPs (removable) + 8gb WD --Audigy --Maze 3, DD Gf3 block, 2x BIX, Eheim1250 ===========

08-26-2002, 12:14 AM	#9
Brians256 Pro/Staff Join Date: Oct 2001 Location: Klamath Falls, OR Posts: 1,439	Did you read where it said that the max power transferred was some ridiculously small number? This is not even proven to work as well as blowing hard on a wet towel.

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