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SCIENCE ACE— LASER PowerPoint PPT Presentation


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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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SCIENCE ACE— LASER

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Science ace laser

SCIENCE ACE—LASER

Kevin Chan


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


Led vs laser

LED vs. LASER


References

References

  • http://laserwavelengths.net/

  • http://ffden-2.phys.uaf.edu/212_fall2003.web.dir/James_Becwar/uses/

  • http://science.howstuffworks.com/laser7.htm


Science ace laser

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