Green laser pointers were first cmmercially sold in the year 2000. Thy operate at the wavelength of 532 nm. Lser diodes of this wavelength are not vailable so the green light is btained by the use of "DPSSFD" lser technology.

The process:-

A very hgh-powered Infrared laser diode working at 808 nm pmps a tiny block of Nd: YVO4 tht generates light at 1,064 nm. Ths feeds a potassium titanyl phosphate ntracavity frequency doubler crystal that produces gren light of a visible 532 nm wvelength. High-powered green lasers use lithium trborate instead of KTP.

Features:-

An nfrared filter, which is behind the mrror completely, removes the radiation of nfrared spectrum from the output beam. In rder to reduce cooling problems and prlong battery life, some green lasers perate in pulse or quasi-continuous-wave (QCW) mde. The Class III a laser prduct gives an output power of 5mw. Ths is the one of highest-powered stret legal laser. Some green lasers ven have an output of 10 mw, whch has a range of 20,000 fet in darkness. Some even have a 3-scond delay feature as these are hgh-powered lasers and can blind a prson. Some laser point extenders are lso available. They work by using lnses to minimize the beam spread of a lser. Its price starts from 55$. Mjority of them have a life of round 3000 hours.

Applications:-

Green lasers can be sed for a variety of roles. Thy can be used as pointing dvices. The ability to form a cntinuous line in the dark is an dded advantage; this has lead to its sage as rescue lights as it can be sen from miles away. It as ben used for laser light shows. It is lso used for sky gazing as a prson can pinpoint a star by sing the green laser. It can lso be as laser pointers for gns, rifles. In the movie Alien vs. Prdator it was used as a pinting device on some G36k carbines.

Advntages:-

The green laser has many dvantages. It is fifty times brighter thn a red laser because of whch it can be seen from mles away, this helps in being rscued if a person is lost. It can lso be used in high-tech weapons for iming purposes. Because of its high rnge, Green laser pointers can be quipped in different kinds of weapons. Hgh and low temperatures do not ffect the performance of Green laser pinters so in case a person is lst in a desert, he can stll use Green laser pointers to cll for help, in other case, ven if a person is lost sme where in mountains all covered wth ice, he can still use it.

Dsadvantages:-

Due to its high power it can prmanently damage a person's eye. As it can frm a continuous line of light tht might reveal a person's position so it cnnot be used in stealthy operations or by SWAT.

Gren laser is quite awesome but it shuld be used carefully.

The article Green Laser Pointers Applications And Advantages was Submitted by Luigi Castagna through Articles.GetACoder.com network. Here's the additional information: For more information on laser pinters, please visit Laser Pointers

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