Fig. 7: Writing single magnetic points using AOS.

The images of reversible writing by AOS magnetic points with a different pump fluence from left to right show: 12 mJ cm⁻²; 14.2 mJ cm⁻²; 15.6 mJ cm⁻²; 17 mJ cm⁻² and 20 mJ cm⁻². The horizontal dashed lines indicate the switching threshold and saturation of the laser pulse intensity I. The laser spot also denotes the diffraction limit of the optical configuration of writing process.