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The Principle of Laser The More Simple

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Lucille Yang
The Principle of Laser The More Simple

 

lasers have become the standard for almost all science-fiction films. The laser pointer gives us always a feeling of éblouissant and mystérieux.

réalité, the laser n’is not mystérieux, in principle, the simplest way is to; ingérer de la lumière in a cavité composée of mirrors à two c&taxes;tés: when the beam is réfléchit, the lumière is closerée in the cavité and the length d’wave becomes unique. A small hole appears cool;t, the green laser pointer we often see the day m&our vision to me. What do you say to the cavité rénoisy? I don't understand, but in this vidéo, you'll know that the oldest cavité réthere sonance utilisée by the’inventor laser était bâtonnet ruby, whose extrémités étaient polished and smooth, plaquées d’money in the form of a mirror, and then placées in a tube. This is the first laser in the history! Nowadays, lasers have été utilisés in all the layers of the société: the quantum communication the most advancedée is based on the laser technology and m&stop, me quantum computers can &stop;tre réalisés laser.

laser pointer imperméable

The laser is généré by radiation, stimulé and présente the three characteréfeatures:

The laser is monochromatic, producing a wavelength of the lumière in the mémechanism réresulting. This diffère lumière ordinary, such as the lumière of the sun and the lumière, who are synthésitées by the lumière of several wavelengths close to the lumière blanche.

The lasers are cohérents, and all the photons have the m&stop, me polarization and s’add à intensityé considérable. The lumière and the phase of the lumière in the daily life are aléatoires et la lumière is a lot weaker than the laser.

beam blue laser pointer très éclose and très focusedé, it therefore has a strong power. On the contrary, the lumière is dispersée in all directions, so that the intensityé très low.

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Lucille Yang
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