Figure 1 | Scientific Reports

Figure 1

From: Improving sodium laser guide star brightness by polarization switching

Figure 1

Schematic diagram of the polarization switching method for improving the sodium excitation.

(a) the sodium D2 transitions and energy levels. (b) Population dynamics on the five F = 2 ground state magnetic sublevels when the angle between laser beam and magnetic field θ is π/2. τ is the period of Larmor precession. (c) The timing diagram of laser polarization switching.

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