Holografiának

Holografiának is the Hungarian word for holography. Holography is a technique that enables a light field, scattered and usually diffused by an object, to be recorded and later reconstructed when the object is illuminated again. This process creates a three-dimensional image of the object, known as a hologram, which has depth and parallax.

The fundamental principle behind holography relies on interference. A laser beam is split into two. One beam, the reference beam, is directed straight onto a recording medium, such as a photographic plate. The other beam, the object beam, is directed to illuminate the object, and the light scattered from the object then strikes the recording medium. The interference pattern created by these two beams, which encodes information about both the amplitude and phase of the light waves, is recorded on the medium.

When the recorded hologram is illuminated with the original reference beam, diffraction occurs. This diffraction reconstructs the original wavefront of light that emanated from the object, allowing the viewer to see a three-dimensional image of the object. Unlike a traditional photograph, which captures a two-dimensional projection, a hologram provides a true stereoscopic view. This means that as the viewer moves their head, their perspective of the object changes, revealing different angles and depths, just as if they were looking at the real object. Holography has applications in data storage, security features, microscopy, and artistic displays.