On 16 May 1960 Teodore Maiman
(1927–2007) demonstrates the first working laser, a ruby laser, at Hughes
Research Laboratories. A laser emits light through a process of
optical amplification based on the stimulated emission of
electromagnetic radiation. The term laser is an acronym for "light
amplification by stimulated emission of radiation".
In Theodore Maiman first laser, atoms
were excited in a synthetic ruby to higher energy levels by a
powerful energy source. At specific energy levels the atoms emitted
light particles or photons. The photons strike other atoms causing
the rapid emission of more photons and thus amplifying the light
intensity.
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| Teodore Maiman with the first laser |
In 1960 futuristic, lasers are now
recognised as one of the top ten technological achievements of the
twentieth century. The laser's use is now omnipresent, science,
medicine, industry, and entertainment with fibre-optic communication,
CDs, CD-ROMs, and DVDs.
Theodore Maiman Explains the First Ruby Laser
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