Solid light

[3][4][5] Potential applications of solid light could include logic gates for quantum computers[4] and room-temperature superconductor development.

[4][5] Solid light appears in several video game franchises, including Halo, Portal, and Overwatch.

In Portal 2, sunlight is used to create "hard light bridges", which act as solid semi-transparent walkways or barriers.

[7][8] In Red Dwarf, the character Rimmer is a hologram who obtains a "hard light drive", allowing him to become tangible.

[7] In the animated show Steven Universe, several main characters are aliens who have physical forms made out of light, with a gemstone as the only material part of their body.