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SCIENCE ACE— LASER

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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  1. SCIENCE ACE—LASER Kevin Chan

  2. Content • Acronym of LASER • Types of laser • Usage and application of lasers • Mechanism of laser production • Comparison between normal LED light and laser

  3. What is L.A.S.E.R.? • L.A.S.E.R. stands for Light Amplification by Stimulated Emission of Radiation

  4. Types of Lasers • Solid-state lasers invisible • Gas lasers visible • Excimer lasers invisible • Dye lasers invisible • Semiconductor lasers invisible

  5. Usage and application of lasers • Industry—materials processing metal cutting • Medical—reattach retinas • Technology—reading of CDs

  6. 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

  7. LED vs. LASER

  8. References • http://laserwavelengths.net/ • http://ffden-2.phys.uaf.edu/212_fall2003.web.dir/James_Becwar/uses/ • http://science.howstuffworks.com/laser7.htm

  9. Thank You

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