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Water Laser? New Type of Experimental Laser




paul1598419

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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.
 

LSRFAQ

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https://futurism.com/scientists-have-created-a-totally-new-type-of-laser-with-light-and-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
 

diachi

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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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Encap

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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 :crackup:
 
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