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LASERS AND OPTICS. By: MacKenzie Underwood And Carson Thweatt. The word “laser” started as an acronym for “light amplification by stimulated emission of radiation.” The word “optic” is derived from the ancient Greek word “opsis”, meaning “apperance, sight, view.”. Atmospheric Optics: halos.

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lasers and optics

LASERS AND OPTICS

By: MacKenzie Underwood

And Carson Thweatt

slide2

The word “laser” started as an acronym for “light amplification by stimulated emission of radiation.”

  • The word “optic” is derived from the ancient Greek word “opsis”, meaning “apperance, sight, view.”
atmospheric optics halos
Atmospheric Optics: halos

Halo- an optical phenomenon produced byice crystals creating colored or white arcs and spots in the sky.

  • produced by the ice crystals in cirrus clouds high in the upper tropshere.
  • crystals behave like prisms and mirrors refracting light between their faces at 22 degrees sending shafts of light in particular directions creating the halos.
rainbows
Rainbows
  • An example of dispersion (seperation of light into colors arranged according to frequency)
  • Seen while sun is shining in one part of the sky and when water droplets in a cloud or in falling rain are in the opposite part of the sky.
  • Would be round if the ground weren’t in the way.
lasers
Lasers
  • The coherent light produced by a laser differs from the random emission of light from atoms in common sources.
  • The laser isn’t a source of energy but a converter of energy.
  • All waves in laser lights go in the same direction and are the same color.
halos
Halos
  • An optical phenomenon produced by ice crystals creating colored or white arcs and spots in the sky.
  • They form in cold weather when ice crystals called diamond dust are floating in the air.
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