The use of utility equipment is used in ourlife more and more, so we should use material used is always an interestingsituation is not the same as the situation that faces actually day. The use oflaser protective glasses trust we are not unfamiliar faces in laser material,the use of a laser material life is always there are serious misunderstandings,especially the problems faced in the laser radiation is inevitable, so far havenot got the perfect solution. In our laser protective glasses look, in fact toomany people do not pay attention to the use of laser material together toprotect.
1 monochromatic good: general light sourceemitted photons, the frequency is not the same, so including a variety ofcolors. The laser emission of the same photon frequency, so the laser is thebest monochromatic light source.
Because the biological effect of lightdepends strongly on the wavelength of light, the monochromatic nature of the laseris mainly used in clinical selective treatment. In addition, the monochromaticcharacter of laser has been widely used in spectral skills and opticalmeasurement, and has become the main method of basic medical research andclinical diagnosis.
2 good coherence: because the photonstimulated radiation is common in phase, coupled with the resonant cavity modeselection effect, so that the laser beam on the cross section of each pointbetween the fixed phase, so the spatial coherence of excellent laser (generallight generated by spontaneous emission right coherent light). Laser providesus with the best coherent light source. Precisely because the advent of lasers,only to promote the development of coherent skills leap, holographic skills tobe completed.
3 directional good: laser beam divergenceangle is very small, almost a parallel light, laser irradiation on the moon toform the spot diameter is only about 1 km. The light source and the generalannounced to all corners of the country, generally light along a direction setup used concentrating equipment, but even the best searchlight, such as thelight spot diameter on the moon, will be expanded to more than 1000 kilometers.
The direction of the laser beam of thisfeature in the medicine is mainly in the height of the space laser energy cangather, then laser beam can be made of laser scalpel. The other, by manyoptical beam parallel that better by aggregating the focal spot is small,coupled with laser monochromaticity, the aggregation of achromatic aberration,the beam size is further reduced to micron level and below, and can be used asa knife cutting cell or molecular precision "".
4 high brightness: laser brightness can behigher than the general light source 1012-1019 times, is the brightest lightsource, strong laser can even produce hundreds of millions of degrees of hightemperature. The high energy of the laser is one of the most valuablefundamental properties to ensure laser clinical healing. Laser energy can alsobe used for laser processing industry and national defense work.
It can be said that the driving forcebehind the development of society is a wide range of new technologies,especially the laser such excellent information is the use of the most typical.The use of this material by laser is very convenient but in our days there is aside effect is very serious, if we use the process in the maintenance of itselfdid not do very simple let themselves be affected. We look forward to thefuture use of laser attention to the diversity of laser use specificity.
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