Said one photon to another – “Stop interfering!”

Light behaves both as a particle and as a wave. The particle aspect is referred to as a Photon. The wave aspect is seen when two coherent beams of light intersect and interfere. The wave characteristics of light inspired Dennis Gabor’s invention of the hologram in 1948.

However, holography didn’t get its start until the invention of the laser in the 60’s when Yuri Denisyuk, Emmettt Leith and Juris Upatnieks made the first holograms that recorded 3D objects. Holography was born in an era of scientific research, art, hippies and rock and roll.

A simple definition of a hologram is “a recording of an interference pattern created by the intersection of two or more beams of coherent light”. Since the first holograms were made, the use of photons interfering and acting like waves has found its place in industry and our lives. Some of the benefits of Photons behaving like waves and interfering are: Holograms, Holographic gratings, Holographic Optical Elements (HOE), Optical Coherence Tomography (OCT) and Interference Lithography.

One of the founders of Wasatch Photonics and a holography innovator from the 70’s is Richard Rallison. He was one of the first to earn a living making “photons interfere”. He formed a company called “Electric Umberalla”. He made hologram apothecary jars and glass discs that were used as key, chains, pendants and other forms of jewelry. He produce holograms, Volume Phase Holographic Gratings and HOE’s until he passed away on September 16, 2010.


Wasatch Photonics was incorporated in 2002 and has developed and manufactures a line of Enhanced Volume Phase Gratings holographically. They are used in variety of applications were detection of low levels of light essential. We are committed to “Getting all the Photons”