One particularly interesting outcome of such research was the invention of holography and the hologram by Hungarian-born engineer Dennis Gabor in 1947.
In classical holography , a laser beam reflected off an object interferes with a reference beam, and the interference pattern is recorded on a photographic plate.
Unlike related technologies, which record one data bit at a time onto the surface of a disc, holography allows 1 million bits of data to be written and read out in a single flash of light.
One day, Donnelly wandered into a lab and saw a student working with holography .
The now complicated relations between the medium of photography and ideas about art are extended by developments in laser holography , computer graphics, film, and video.
Engineers used laser holography to take an image of vibrations created by the minivan's body.
We'll cover the fundamentals needed to understand basic optical concepts such as radiometry, polarization, diffraction, and holography , including some examples of how these concepts are used in various applications.
Imagine that holography has been so perfected that a laser-illuminated hologram of an object can, under certain observational conditions, be indistinguishable from the real thing.
Perhaps technologies such as virtual reality or holography will provide yet another dimension to what can be learned and shared.
Our three-year high school photonics program encourages students to train as laser technicians, and holography teaches them many useful skills.