📺
Survey of Alternative Displays
  • Survey of Alternative Displays - 2024 Update Notes
  • 2022 Update Notes
  • Introduction
  • Outline
  • Standard Displays
    • Standard Displays Overview
    • LED
    • Projector
  • Alternative Displays
    • Overview
    • Transparent
    • Volumetric Displays
    • Modified Polarizers
    • Electronic Paper/E-Ink
    • Flexible Displays
    • Lasers and Laser Projectors
    • Lenticular and Multiview Displays
    • Light-field Displays
    • Head Mounted Displays
    • Circular and Non Rectangular
  • Techniques
    • Overview
    • Pepper's Ghost
    • Projection on Static Transparent Material
    • Volumetric Projection
    • Projection on Water or Fog
    • Diffusion and Distortion Techniques
  • Experimental/Other
    • Overview
    • Physical/Mechanical Displays
    • Switchable Glass
    • Drone Displays
    • Ultrasonic Atomization of Water
    • Electrochromic Paint
    • Light activated and other Reactive Surfaces and Materials
    • Scanning Fiber Optics
    • Acoustic Levitation Display
    • Plasma Combustion
    • High Refresh Rate Displays
    • Other Experiments
  • Legacy
    • Overview
    • Cathode Ray Tube
    • Eggcrate and other Numeric Displays
    • Glasses-enabled 3D
    • Pyrotechnics and Other Curiosities
  • Closing Notes
  • Appendix
    • Holograms and the Ideal Display
    • Misleading Terms
    • Notes about Touch Screens
    • Virtual Production and XR
    • LCD Polarizer Removal
    • DIY Transparent Screens
    • Acknowledgements and Additional References
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  1. Experimental/Other

Plasma Combustion

PreviousAcoustic Levitation DisplayNextHigh Refresh Rate Displays

Last updated 3 years ago

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Plasma Combustion

Image from paper Fairy Lights in Femtoseconds —

This kind of display acts in a similar way to Volumetric Projection, but it is considerably more dangerous and expensive. There are only one or two companies working on this display type right now, and one is . There is limited information on how this display actually works, so take my layman’s explanation with a grain of salt. This display technique works by focusing high powered lasers onto a point in space. When the energy at that point gets hot enough, the air molecules get ionized and release some photons. Aside from ionized plasma, fluorescence is one, and is another when involving a fluid medium. Here is a demonstration of the Aerial Burton display:

This display unfortunately has many drawbacks that are similar to those of a laser projector. They still work by moving a mirror very quickly, so there is a limited number of points that they can draw at a given time. There is also an added crackling noise component because of the tiny explosions needed to make the visuals. These tiny explosions can also emit an ozone gas that can be potentially harmful if used in an enclosed space.

Two forms of Aerial Burton’s displays — one with a fluid based medium and one based entirely in air —

Another set of researchers in Japan have been of this same technique that they are calling the Fairy Lights display system. The primary difference is that this version is . By firing the lasers much faster than the Aerial Burton method, the images are smaller and not as bright, but much safer. The tangible element can be used as an additional cue for interaction with the display. They still have similar drawbacks related to visual fidelity (number of dots per second) and added popping noise (their paper says about 22dB of noise is added when using the display). Here is a featuring some of the interactions and visuals that can be produced.

Image from paper on Fairy Lights in Femtoseconds —
Source
working on a much smaller implementation
touchable
video
Aerial Burton
cavitation
video
Source
Source