Aerial Burton 3D display projects images into mid-air #DigInfo
Why Physics Stack Exchange recommends it
Physics Stack Exchange users link it as a real example of a laser-plasma volumetric display when discussing mid-air projection and ionizing air with lasers.
Recommended by 0 people across 0 different months, 2018 to 2023.
What it is
A roughly two-minute DigInfo TV news clip from October 2014 showing the Aerial Burton 3D display, which uses a pulsed laser to ionize air and draw glowing points of light in mid-air. It is a short product demo with narration rather than a technical explanation.
What people said
Cites Rob · 2018-09 · Physics Stack Exchange · on “Structured light, infinite focus”
... projecting a static image across a room that stays focused over a wide range of distances from the projector, ... A 3D projection [LINK] is created and mapped to the 2D surfaces in the room. To record the view and show it to others you simply track the position of the camera. Here is a before view of this person's room: [LINK] Here is the room with fake wall texture and additional objects: [LINK] Here is a screenshot from part 3 of the PlayStation video listed below: [LINK] In another part his room becomes flooded and he is attacked by a sea monster: [LINK] That movie was created with a room, a RED camera, two PlayStation Move controllers, a computer, the Sony PlayStation SDK, and a film
Cites p620 · 2021-01 · Physics Stack Exchange · on “Metasurface holography as a principle behind volumetric displays?”
Unable to edit the previous comment anymore but yes, I'm aware of those as well as of the one that utilizes photophoresis [LINK] . For those interested in the previous two: the one based on acoustic trapping [LINK] and the one ionizing air with a pulse laser [this video] .
Cites Fulano · 2022-05 · Physics Stack Exchange · on “What is the theoretical range of temperature the air must be in order to reflect/refract light (for a volumetric display)?”
Well, the only question I found in this website about volumetric displays on air was this one [LINK] , but it specifically suggests making air denser in order to make it work, but my question is specifically about changing the temperature of air to show the voxels. In other words, the intention is to heat a portion of air (a cubic shaped area of any size) with simple jet of hot air or using a lot of lasers for it, and then pointing a projector or RBG lasers to convey in specific points, (supposedly) making voxels. Like pointing a laser to a mirage that appeared above a hot area, you would (supposedly) see the laser path. How hot I would need to this cube of air to be in order to refract the
Cites Fernando Zigunov · 2023-12 · Physics Stack Exchange · on “I need to know how to make air ionization plasma with lasers”
Just wanted to say that the answer provided by Thomas Fritsch is definitely not correct. I have produced laser-induced plasma in the laboratory with a ~5 nanosecond pulsed Nd:YAG laser, frequency-doubled at 532nm. It is possible; there is plenty of literature evidence that it is also possible with 1064nm. See, for example, "Laser Spark Ignition: Laser Development and Engine Testing" (McMillian et al, 2008) [LINK] . They provide a chart with the energy density values required to ignite a plasma in mid-air, typically on the order of 10^12-10^13 W/cm2. When I was producing these in the lab, I found the threshold was also about 3*10^12 W/cm2 at 532nm (though I must admit, I wasn't sure my lenses