Holography Essay

2113 Words 9 Pages

Holography has been around for sometime now, but has become increasingly more popular in recent years. Holograms are now found in virtually all types of products. These products consist of currencies, checks, stock certificates, credit cards, passports, ID cards, computer software, audio/visual tapes and CD ROMs, aircraft, software, electrical/electronic appliances, building materials, food, pharmaceuticals, cosmetics, food, building materials, branded fashion wear, tickets for performances and major sporting events, textbooks, toys, the list goes on.

Although the possibility of holography was suggested as early as 1947, it could not be demonstrated until a pure coherent light source, the laser became
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This is known as “parallax.” “Parallax allows the viewer to move back and forth, up and down, and see different perspectives”(www.holoworld.com/holo/quest1)

Dr. Dennis Gabor, Imperial College of London invented holography. In 1971 he received the Nobel Prize in physics for holography. Although, round the world, holographic images and techniques are constantly being improved upon. Still holography has proved to be the most accurate interpretation of three-dimensional images in the world.

Holograms are made be using a LASER light. Did you know that LASER is actually an acronym that stands for Light Amplification by Stimulated Emissions of Radiation? Anyway, a LASER is a special source of light that was invented in the early 60’s. Generally, A laser is a very thin glass tube, about the size of a straw that you use to drink a soda. In the glass tube there is gas, most commonly it is Helium and Neon. There are several different sizes, brands, and types of LASERS. LASERS are used in a variety of fields such as medical, scientists, jewelry makers, appliances, etc
“Laser’s produce light that has very special characteristics: first the light is monochromic, or a single wavelength/color. Second, the light from a LASER is coherent, which means it has all of its waves traveling in sync with one another.” (www.holoworld.com/holo/quest4) I said earlier that there are several different types of Laser’s. The one the

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