Definition & Meaning | English word SELF-FOCUSING

Definitions of SELF-FOCUSING

1. inflection of self-focus

Examples of Using SELF-FOCUSING in a Sentence

• This refractive index variation is responsible for the nonlinear optical effects of self-focusing, self-phase modulation and modulational instability, and is the basis for Kerr-lens modelocking.
• Before the introduction of CPA in the mid-1980s, the peak power of laser pulses was limited because a laser pulse at intensities of gigawatts per square centimeter causes serious damage to the gain medium through nonlinear processes such as self-focusing.
• In 1994, Mourou and his team at the University of Michigan discovered that the balance between the self-focusing refraction (see Kerr effect) and self-attenuating diffraction by ionization and rarefaction of a laser beam of terawatt intensities in the atmosphere creates "filaments" that act as waveguides for the beam, thus preventing divergence.
• The balance between the self-focusing refraction and self-attenuating diffraction by ionization and rarefaction of a laser beam of terawatt intensities, created by chirped pulse amplification, in the atmosphere creates "filaments" which act as waveguides for the beam thus preventing divergence.
• When transparent material is exposed to an unfocused laser beam of sufficient brightness to initiate photorefractive effect, the waveguides may start forming on their own as a result of an accumulated self-focusing.
• In his Master's work he provided the empirical proof of the formation of filamentary distributions of solvated electrons in water, induced by high-power fs (femtosecond, one trillionth of a second) laser pulses in the self-focusing propagation regime, and described the theoretical context in which this phenomenon can be explained and controlled.
• For example, the technique of chirped pulse amplification was developed to overcome the nonlinearities and damage of optical components that self-focusing would produce in the amplification of femtosecond laser pulses.
• The dispersion is anomalous and the nonlinearity is self-focusing (note that similar results could be obtained for a normally dispersive medium combined with a defocusing nonlinearity).
• structures in nonintegrable systems with modulational (self-focusing) instabilities and constrained by more than.
• Many of his theoretical predictions have been confirmed in experiments: aberrational structures due to wave self-focusing in nematics, limited lifetime of spatial solitons in media with relaxation-type nonlinearity, dynamics of thermal defocusing in the presence of forced and free convection, self-deflection of beams in nonlinear moving media, laser-induced transparency of a cloudy medium and an ozone layer, adaptive compensation of beam distortions in nonlinear media.
• She has completed a monograph "Nonlinear Schrodinger Equation: Self-Focusing Instability and Wave Collapse" together with her brother Pierre-Louis Sulem, which appears in applied Mathematical Sciences.
• Instead of supporting the dogma often labeled as "Platonic Idealism," Tejera follows internal clues and self-focusing devices in examining the formative prose of the Dialogues in line with the interpretational poetics developed in his literary theory volume (Literature, Criticism, and the Theory of Signs).

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