Atomic laser

Atomic laser.

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Atomic laser – a device for producing moving beams of atoms from the condensate Bose-Einstein gas discharged alkaline metals in the coherent condition.



Atomic laser – a device for producing moving beams of atoms being at coherent state. Atomic laser is similar to conventional optical laser only in that the moving substance and in either case, photons or atoms are in a coherent state. In all other respects they are completely different devices, which are based on different physical effects and phenomena.

Atomic laser based on the phenomenon of Bose-Einstein condensation of dilute atomic gases of alkali metals. Condensate Bose-Einstein – state of matter, which is based on the bosons cooled to temperatures close to absolute zero (less than ppm Kelvin). In this state the substance is in one quantum (energy) state, by which quantum effects manifest themselves at the macroscopic level.

Initially the condensate Bose-Einstein gas discharged from alkali metals is maintained due to the special technique of two magnetic traps in magnetic field between them. All atoms electron spins directed parallel to the magnetic field (assumed direction of “the field”). Then a short pulse of RF radiation tilts (expands) the spins of the atoms. Atoms with electronic spin “against the field” are pushed by the magnetic field of magnetic coils and gravity clumps of the liberated atoms are accelerated and fired out of the device. Using an atomic laser, it is possible to place the atoms on the surfaces of devices, materials and equipment with previously unattainable accuracy, allowing you to create a fundamentally new structure that may lead to new technological breakthroughs in various fields of science and technology, including in microelectronics.


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