The femtosecond mini plasma holograms are cold enough (on average) to touch - Fairy Lights in Femtoseconds: Aerial and Volumetric Graphics Rendered by Focused F

The femtosecond mini plasma holograms are cold enough (on average) to touch - Fairy Lights in Femtoseconds: Aerial and Volumetric Graphics Rendered by Focused Femtosecond Laser Combined with Computational Holographic Fields - https://arxiv.org/abs/1506.06668 https://arxiv.org/abs/1506.06668