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SCIENCE ACE— LASER

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SCIENCE ACE— LASER. Kevin Chan. Content. Acronym of LASER Types of laser Usage and application of lasers Mechanism of laser production Comparison between normal LED light and laser. What is L.A.S.E.R.?. L.A.S.E.R . stands for L ight Amplification by Stimulated Emission of Radiation.

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Presentation Transcript
content
Content
  • Acronym of LASER
  • Types of laser
  • Usage and application of lasers
  • Mechanism of laser production
  • Comparison between normal LED light and laser
what is l a s e r
What is L.A.S.E.R.?
  • L.A.S.E.R. stands for Light Amplification by Stimulated Emission of Radiation
types of lasers
Types of Lasers
  • Solid-state lasers invisible
  • Gas lasers visible
  • Excimer lasers invisible
  • Dye lasers invisible
  • Semiconductor lasers invisible
usage and application of lasers
Usage and application of lasers
  • Industry—materials processing

metal cutting

  • Medical—reattach retinas
  • Technology—reading of CDs
mechanism of laser
Mechanism of laser
  • Stimulated emission is the process of how light particles (photons) are produced
  • It involves the electronic transition of electrons from higher energy level to lower energy level
references
References
  • http://laserwavelengths.net/
  • http://ffden-2.phys.uaf.edu/212_fall2003.web.dir/James_Becwar/uses/
  • http://science.howstuffworks.com/laser7.htm