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How Lasers Work

A thorough description of the physics and applications of lasers from HowStuffWorks.com.

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Helium-Neon Laser

The most common and inexpensive gas laser is the helium-neon laser and it is usually constructed to operate in the red region of light.

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HiPER

HiPER is a proposed European High Power laser Energy Research facility dedicated to demonstrating the feasibility of laser driven fusion as a future energy source. Read all about laser fusion and its ...

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Atom-Light interactions and lasers

A short page dealing with the atomic explanation of lasers. Although brief and lacking detail there is a good little applet which shows what happens when an excited atom is struck by a photon.

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Laser

The stimulated emission of light is the crucial quantum process necessary for the operation of a laser.

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Laserfest

It's the laser's 50th birthday! Discover what the laser's done for you and find out what's going on near you to celebrate.

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Laser Cooling

Shining light on something usually makes it hotter not colder... but not always. Find out here how you can cool things with a laser

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Lasers find distant hidden explosives

Scientists can use lasers to find explosives in containers from a distance. They rely on using spectroscopy from the light scattered back. This is similar to the process they use to test the quality ...

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Curiosity Mars rover blasts first rock with laser

The Curiosity rover conducts its first analysis of the chemical composition of rocks on Mars by firing a laser at rocks. The laser uses spectroscopy to measure what the rock is made of.

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The first 50 years of the laser

In this video interview, Tom Baer of the Stanford Photonics Research Center reviews 50 years of laser physics, and makes some predictions about the next 50.

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