Laser Pointer Systems - Light Amplification by Stimulated Emission of Radiation

"Lasers" are used within various technology around the globe, even more than you may be readily aware of. From computers to laser pointers to satellites to cell phones. Televisions, happinesslifetime.com Skin Care, Surgery, Weaponry, Cameras, and other devices - all use laser technology to get the job done. But how exactly does a laser produce its beam of light in a specific frequency, or color. Lets look at how a laser pointer works, the most visible of laser devices we see in every day life.

A laser can actually be relatively complicated, but this is about as simple an explanation as possible to explain the complex physics that is actually taking place. A laser will have a power source which feeds energy to a crystal gain medium, which when stimulated by the energy produces laser light that is then emitted down the barrel of the laser pointer. A lens is then used to remove light frequencies that are not desired from shooting out of the laser, allowing only the specific laser color desired to be visible, for example 532nm for green laser light.

Some other color frequencies are 473nm blue, 650nm red, 594nm yellow, and 405nm purple. Because different materials are used to make each laser the designs and strength of each color tends to vary from one to another. As a general rule 532nm green will be the brightest color at the same power than any other color as it is the brightest light frequency within the visible light spectrum that we can see as human beings. That means that a 100mW green laser will look brighter than a 100mW of any other color.

Every laser has its own pros and cons and if you are looking to buy a laser pointer its important that you don't go with something too cheap. If poorly designed they can have low quality diodes that will burn out and die rather quickly. Make sure that any piece you decide to use has a reputation and design that suites you.

James is an avid thinklasers.com Laser fan and has reviewed thousand of laser pointer varieties. His preferred source to thinklasers.com buy a laser is thinklasers.com