Self-guiding

Andricioaei, I. Dinner, A.R. Karplus, M., Self-guided enhanced sampling methods for thermodynamic averages, 7. Chem. Phys. 2003,118, 1074—1084... 

Many sensors have to be integrated into such mobile robotic systems, with a major share of miniaturized, low-power microsystems. Self-guiding features are used in such robots, as well as autocharger docking system features. 

Finally, it is worth mentioning that with the advent of ultra-high intensity laser systems, the possibility for an ultrashort laser pulse to be self-guided via... 

Fig. 2.10. Head of the self-guided intravascular catheter (modified from [30]...

Control of High Harmonic Generation Processes Using Chirped and Self-Guided Femtosecond Laser Pulses... 

The laser beam profile at the end of the medium can be direct evidence of the profile flattening. Figure 8.6b and c shows the laser profiles at the gas jet positions z = 0 and z = —18 mm. At z = 0, the laser profile was severely distorted and weakened after the propagation. On the other hand, at z = —18 mm, the laser beam formed a flattened profile with a radius of 60 pm, which closely matched the 3-D calculation. It is thus clear that a proper selection of the gas jet position is critical for the profile flattening and self-guiding of laser pulses. 

Fig. 8.14. Divergence measurement of H61 with respect to the grating separation obtained at the conditions of self-guided laser propagation...

First, it is important to note that what is actually observed, in experiment and in simulation alike, is not a steady-state self-guided filament. Rather, we deal with a series of pulse splitting events akin to the scenario of spatial dynamical replenishment [7], In this case, however, the role of plasma as the arrestor of the self-focusing collapse is less pronounced compared to propagation in air. 

The formation of self-guided filaments in the air at the laboratory scale has been known for almost ten years [12, 15-17]. Filamentation occurs when high-power laser pulses propagate in a highly non-linear way in transparent media (Fig. 14.2). This high non-linearity induces a self-action, which... 

E. T. J. Nibbering, P. F. Curley, G. Grillon, B. S. Prade, M. A. Franco, F. Salin, A. Mysyrowicz, Conical emission from self-guided femtosecond pulses in air, Optics Letters 21, 62 (1996). 

S. Tzortzakis, M. A. Franco, Y.-B. Andre, A. Chiron, B. Lamouroux, B. S. Prade, A. Mysyrowicz, Formation of a conducting channel in air by self-guided femtosecond laser pulses, Physical Review E 60, R3505-R3507 (1999)... 

S. Tzortzakis, B. Prade, M. Franco, A. Mysyrowicz, Time evolution of the plasma channel at the trail of a self-guided IR femtosecond laser pulse in air, Optics Commun. 181, 123 (2000)... 

H. Schillinger, R. Sauerbrey, Electrical conductivity of long plasm,a channels in air genera,ted by self-guided femtosecond laser pulses, Applied Physics B 68, 753 (1999)... 

J. Kasparian, R. Sauerbrey, S. L. Chin, The critical laser intensity of self-guided light filaments in air, Applied Physics B 71, 877 (2000)... 

L. Berge, S. Skupin, G. Mejean, J. Kasparian, J. Yu, S. Frey, E. Salmon, J. P. Wolf, Supercontinuum emission and enhanced self-guiding of infrared femtosecond filaments sustained by third-harmonic generation in air, Physical Review E 71, 016602 (2005)... 

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