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Old 07-09-2017, 10:47 PM #1
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Default Water Laser? New Type of Experimental Laser

https://futurism.com/scientists-have...d-water-waves/

A bit fuzzy on what they are doing, but they appear to be pumping (like a diode or pump laser) around a section of water to create something entirely new.


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Old 07-10-2017, 01:00 AM #2
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Default Re: Water Laser? New Type of Experimental Laser

The article is pretty vague on details. It is difficult to ascertain exactly what this is doing. According to the article, it could be used for small "lab on a chip" devices that have become prevalent in third world countries, but it doesn't say how.
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Old 07-11-2017, 03:13 PM #3
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Default Re: Water Laser? New Type of Experimental Laser

Quote:
Originally Posted by shintashi View Post
https://futurism.com/scientists-have...d-water-waves/

A bit fuzzy on what they are doing, but they appear to be pumping (like a diode or pump laser) around a section of water to create something entirely new.
I pulled the paper at work.

They are using Using water ripples ringing around a droplet to create a symmetrical array of phonons to cause a minute , but highly controllable frequency shift of the pump laser light.

All it does is impart a controlled Raman or Brillioun shift to the incoming light. Which is cool if your doing certain types of spectroscopy in a lab. However the wavelength shifts are very small, on the order of a few Kilohertz to maybe .001 nanometer. Very useful in ultrafine spectroscopy, perhaps, but otherwise nothing to write home about at LPF.

Sad, the Journo's did not have a physicist around to tell them this was a non-issue for most of their readers.

Its not really a " water " laser, its a tunable frequency shifting assembly that emits coherent light in minute amounts.

A very neat technique, that only a few dozen labs in the world can replicate or explore right now.

Steve
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Old 07-11-2017, 03:26 PM #4
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Default Re: Water Laser? New Type of Experimental Laser

Quote:
Originally Posted by LSRFAQ View Post
I pulled the paper at work.

They are using Using water ripples ringing around a droplet to create a symmetrical array of phonons to cause a minute , but highly controllable frequency shift of the pump laser light.

All it does is impart a controlled Raman or Brillioun shift to the incoming light. Which is cool if your doing certain types of spectroscopy in a lab. However the wavelength shifts are very small, on the order of a few Kilohertz to maybe .001 nanometer. Very useful in ultrafine spectroscopy, perhaps, but otherwise nothing to write home about at LPF.

Sad, the Journo's did not have a physicist around to tell them this was a non-issue for most of their readers.

Its not really a " water " laser, its a tunable frequency shifting assembly that emits coherent light in minute amounts.

A very neat technique, that only a few dozen labs in the world can replicate or explore right now.

Steve
Interesting, thanks for the additional info Steve!
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Last edited by diachi; 07-11-2017 at 03:26 PM.
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Old 07-11-2017, 03:28 PM #5
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Default Re: Water Laser? New Type of Experimental Laser

Quote:
Originally Posted by LSRFAQ View Post
I pulled the paper at work.

They are using Using water ripples ringing around a droplet to create a symmetrical array of phonons to cause a minute , but highly controllable frequency shift of the pump laser light.

All it does is impart a controlled Raman or Brillioun shift to the incoming light. Which is cool if your doing certain types of spectroscopy in a lab. However the wavelength shifts are very small, on the order of a few Kilohertz to maybe .001 nanometer. Very useful in ultrafine spectroscopy, perhaps, but otherwise nothing to write home about at LPF.

Sad, the Journo's did not have a physicist around to tell them this was a non-issue for most of their readers.

Its not really a " water " laser, its a tunable frequency shifting assembly that emits coherent light in minute amounts.

A very neat technique, that only a few dozen labs in the world can replicate or explore right now.

Steve
Steve: Thanks for that. I was going to look into it because it didn't make much sense and was very vague but did not have the time to do yet.

Is a interesting technique for sure and it may be of use in certain circumstances/situations.
Figured it was something like that "water laser" didn't make any sense. Another example of media generated fake news for the sake of a sensational attention garnering story.

I guess the squirt gun/laser gun is not going to happen anytime soon

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Old 07-12-2017, 01:46 AM #6
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Default Re: Water Laser? New Type of Experimental Laser

@shintashi, thanks for sharing this.
Also on that same site, there was another interesting more recent Laser development
.
https://futurism.com/german-research...harpest-laser/

Thanks again!
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