Real time laser created floating plasma to create images you can touch and interact

[William Gaatjes]

with...

These researchers created images by generating plasma by ionizing the air with multiple femto pulse lasers. The created image is tracked by a camera and software creates a series of movements. It looks as if you are a game character and you can touch power ups. But this can be used in the future perhaps for interesting 3d images that give feedback. Not yet quite star trek or star wars 3d images, but it looks very promising. I do wonder, that the colors that can be generated are depended on the light emitted when the gas atoms and molecules are ionized.


Fairy Lights in Femtoseconds

http://digitalnature.slis.tsukuba.a...oseconds/?mc_cid=b7d2e95614&mc_eid=479e08621d

Abstract :
We present a method of rendering aerial and volumetric graphics using femtosecond lasers. A high-intensity laser excites a physical matter to emit light at an arbitrary 3D position. Popular applications can then be explored especially since plasma induced by a femtosecond laser is safer than that generated by a nanosecond laser. There are two methods of rendering graphics with a femtosecond laser in air: Producing holograms using spatial light modulation technology, and scanning of a laser beam by a galvano mirror. The holograms and workspace of the system proposed here occupy a volume of up to 1 cm^3; however, this size is scalable depending on the optical devices and their setup. This paper provides details of the principles, system setup, and experimental evaluation, and discussions on scalability, design space, and applications of this system. We tested two laser sources: an adjustable (30-100 fs) laser which projects up to 1,000 pulses per second at energy up to 7 mJ per pulse, and a 269-fs laser which projects up to 200,000 pulses per second at an energy up to 50 uJ per pulse. We confirmed that the spatiotemporal resolution of volumetric displays, implemented with these laser sources, is 4,000 and 200,000 dots per second. Although we focus on laser-induced plasma in air, the discussion presented here is also applicable to other rendering principles such as fluorescence and microbubble in solid/liquid materials.

https://youtu.be/96fpHVMVtxE

https://youtu.be/AoWi10YVmfE

 

[Jeff7]

50 years until the first holodecks show up.

 

[zinfamous]

Obviously porn is the first application.

 

[crashtech]

I wonder if it emits ozone.

 

[Newell Steamer]

 

[Nograts]

Obviously porn is the first application.

:hmm:

 

[zinfamous]

I feel stupid for laughing, but I did.

 

[GagHalfrunt]

Obviously porn is the first only application.

FTFY

 

[Murloc]

I'm not really sure how they can decide arbitrarily at what distance from the laser the plasma will be created.

 

[Paratus]

I'm not really sure how they can decide arbitrarily at what distance from the laser the plasma will be created.

complete swag but constructive/destructive interference.

Also I now predict in the future doctors will have to deal with laser burns on various body parts. :hmm:😱

 

[crashtech]

Go ahead and put your pecker into the focal point of a powerful laser. What could go wrong?

 

[cbrunny]

Can plasma get Aids?

 

[ImpulsE69]

Plasma, lube of the gods.

 

[Jeff7]

complete swag but constructive/destructive interference.

Also I now predict in the future doctors will have to deal with laser burns on various body parts. :hmm:😱

"I didn't shine it in my eye for too long."

I wonder what it does to vitreous humour.