Wednesday, 13 February 2008

Laser Mechanics

Most problems are connected with the laser today was the photons sound that what was named, it was decisive the fluctuation in the intensity of the laser beam, because random quantum the interaction of mechanics, that in the long run reduced feeling refinement of the implement.
The expert in physics from Planck Institute for Gravitational Physics (was known as Albert Einstein Institute) has succeeded in reducing the level of the photons sound totaling above 90 percent, through the technique mentioned the light that blackmailed that also could be worn in quantum the distribution of the subject, this means that the sign could be encoded with the key was caused by quantum the effect.
As most of you probably know, light is not emitted continuously, but in quantum packets of energy called photons. Furthermore, light sources cannot generate the same amount of photons at separate.
The Period of time, although the source of electricity continually, because of photons was dismissed randomly on the basis of recipe statistics.
In this way, previously, the laser system possibly broadcasted few photons, whereas sometimes photons about the surface that was given in the bunch that arrived almost simultaneously.
This variation in the photons sum, in this way in the minor intensity, was known as sound photons.
The light that blackmailed was reached by the move of the individual's photons in the laser beam, to get even the distribution of photons.
With did because of that, quantum knowledge of physics of statistical nature was not damaged, this means that photons emissions still processed happened randomly, but they were gathered in the pair to guarantee that they arrived in the distance of time was arranged, the effect was widely known in the field quantum physics knowledge as the twist.
But why we even needed the exact laser system like that?
Well, one sheet of the application would in the detection of the wave of gravitation.
The implement like that needed the very sensitive laser system; to accurately measure the variation in the distance of one thousand times was smaller than the diameter of the core of the atom.
According to Professor Roman Schnabel from Leibniz University, the light that blackmailed also could be used in the sending of the optic data, as him guaranteed the perfect system of the secret code and did not disrupt results of the sending.
All the laser systems in the wave detector of gravitation used the red light infra.
Schnabel explained how the effect blackmailed that was light was obtained.
Two separated the laser beam was needed, in this way the team must utilize the double of shift crystal to make the system proceeding, meant crystal had reflect the light and red light infra that optics also.
The green ray the light was utilized to polarize crystal, determined the electron in the atom to proceed with the same frequency as light.
The green light had long the wave half that was owned the red light infra.
When the electron proceeded, they enabled crystal to maintain some photons from red ray light infra, in this way if the red laser infra suffered the decline in beam intelligence straightaway was increased with the particle of photons from crystal.
But, the detection of the wave of gravitation that was difficult to be comprehended still to the cost of the place ticket.
Why was that?
Because the force exerted on the two parallel mirrors is so weak that the interference pattern obtained is practically indistinguishable, producing difference between patterns of one billion times smaller than that of an atom, scale which is practically unreachable with the available technology, especially while taking into consideration photon noise. However, this may soon change, as light squeezing promises to produce interference patterns with very regular light intensity.

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