Holographic film: Holographic film can record light at a very high resolution, which is necessary for creating a hologram. It's a layer of light-sensitive compounds on a transparent surface, like photographic film.
Holographic images are also recorded on materials other than photographic plates. Most of these nonphotographic materials, however, are still in the experimental stage, and the photographic production of holograms remains the only widely used process.
The dove hologram on a Visa card may be the most familiar. The rainbow-colored bird changes colors and appears to move as you tilt the card. Unlike a bird in a traditional photograph, a holographic bird is a three-dimensional image. Holograms are formed by interference of light beams from a laser.