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Optics is the study of the properties and behavior of light. In this section you can learn about everything from holograms to lasers and lenses.
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Please copy/paste the following text to properly cite this How Stuff Works article:
Weschler, Matthew. "How Lasers Work." 01 April 2000. HowStuffWorks.com. <http://science.howstuffworks.com/laser.htm> 09 May 2008.
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Three-Level Laser
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Three-Level Laser
Here's what happens in a real-life, three-level laser.
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In the next section, you'll learn about the different types of lasers.
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Three-Level Laser
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Please copy/paste the following text to properly cite this How Stuff Works article:
Weschler, Matthew. "How Lasers Work." 01 April 2000. HowStuffWorks.com. <http://science.howstuffworks.com/laser.htm> 09 May 2008.
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