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Old 03-31-2012, 03:04 AM #1
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Default Physicists Mix Two Lasers to Create Light at 11 New Frequencies

Physicists Mix Two Lasers to Create Light at 11 New Frequencies
________________________________________
UCSB Press Release: "UCSB Physicists Mix Two Lasers to Create Light at Many Frequencies " [by Ripping Electrons from Their Cores]


Quote:
–– A team of physicists at UC Santa Barbara has seen the light, and it comes in many different colors. By aiming high- and low-frequency laser beams at a semiconductor, the researchers caused electrons to be ripped from their cores, accelerated, and then smashed back into the cores they left behind. This recollision produced multiple frequencies of light simultaneously. Their findings appear in the current issue of the science journal Nature

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The researchers utilize a free electron laser –– a building-size machine in UCSB's Broida Hall –– to produce the electron-hole recollisions
Quote:
"This is a very remarkable phenomenon. I have never seen anything like this before," said Mark Sherwin, whose research group made the groundbreaking discovery. Sherwin is a professor of physics at UCSB and a co-author of the paper. He is also director of the campus's Institute for Terahertz Science and Technology.
Quote:
"It's fairly routine to mix the lasers and get one or two new frequencies, Sherwin continued. "But to see all these different new frequencies, up to 11 in our experiment, is the exciting phenomenon. Each frequency corresponds to a different color."

Click for downloadable image of Benjamin Zaks (left) and Mark Sherwin


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Old 03-31-2012, 03:07 AM #2
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Default Re: Physicists Mix Two Lasers to Create Light at 11 New Frequencies

I wonder if Pullbangdead is working on this?

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Old 01-15-2013, 01:07 AM #3
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Default Re: Physicists Mix Two Lasers to Create Light at 11 New Frequencies

..."produced multiple frequencies of light simultaneously."...

But was it coherent or not?

T.
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Old 01-15-2013, 01:58 AM #4
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Default Re: Physicists Mix Two Lasers to Create Light at 11 New Frequencies

Quote:
Originally Posted by Teslanium View Post
..."produced multiple frequencies of light simultaneously."...

But was it coherent or not?

T.
You sir have been doing some serious gravedigging on threads...both posts you just made are on threads 11+months old. Don't know if the discussion will be sparked again!
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Old 03-01-2013, 10:28 AM #5
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Default Re: Physicists Mix Two Lasers to Create Light at 11 New Frequencies

this is similar to what I'm trying to do but wihout expensive equipment for now..

Need cheap lasers with exact frequencies

their semiconductor material won't last for long.. they bombard them with hard rays to strip the inner electrons.. there is always photon interaction for those who know..some lasers work this way..

Last edited by geon; 03-01-2013 at 10:38 AM.
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