Silicon fluorescent nanoparticles when aggregated make crystals. The microscopic cavity was designed by coating the crystal with an acrylic gel. The thin acrylic shell is the cavity. When hit with a green light in the 560 nm range, the cavities fluoresce in the red at 620 nm. Note the beam.
- Munier Nayfe , Department of Physics
- Sahraoui Chaieb , Department of Theoretical and Applied Mechanics & Beckman Institute