September 24, 2010 at 01:06The most accurate laser compass on rubidium
The American physicist Alexander Zibrov, together with a group of assistants, invented a laser compass of a fundamentally new design , which is able to accurately reflect the direction of the magnetic field.
Zibrov’s method consists in laser illumination of rubidium-87 crystals, which under certain conditions (at a temperature of 45 ° C) create a lattice that is dependent on the magnetic field. Using a laser, you can detect how the structure of the lattice changes when a magnetic field appears, and this information makes it possible to accurately determine the strength and direction of the field.
The laser compass is significantly superior to all existing compasses in terms of ease of operation. Of course, today there are compasses that operate on lasers and take into account the atomic lattice, but they are all much more complicated and require some mathematical models.
During the experiment, Zibrova’s compass successfully detected magnetic induction from 0.1 Gauss to 200 Gauss. These are impressive numbers. The inventors add that the characteristics of the device can be adjusted by changing the size and temperature of the chip.
Zibrov’s method consists in laser illumination of rubidium-87 crystals, which under certain conditions (at a temperature of 45 ° C) create a lattice that is dependent on the magnetic field. Using a laser, you can detect how the structure of the lattice changes when a magnetic field appears, and this information makes it possible to accurately determine the strength and direction of the field.
The laser compass is significantly superior to all existing compasses in terms of ease of operation. Of course, today there are compasses that operate on lasers and take into account the atomic lattice, but they are all much more complicated and require some mathematical models.
During the experiment, Zibrova’s compass successfully detected magnetic induction from 0.1 Gauss to 200 Gauss. These are impressive numbers. The inventors add that the characteristics of the device can be adjusted by changing the size and temperature of the chip.