 |
 |
| Diffractive image generated by the holographic structure that was produced on glass. The image occurs by looking on a bright white LED (bright spot) via the hologram. The white light source is available from the flashlight of smartphones. The ‘AOP’ stands for the ‘Applied Optics & Photonics’ – the name of research group at Heriot-Watt University. |
| © 2024 SPIE Europe |
|
