Self-focusing – limit, Kerr lens, collapse, filamentation, optical …
Due to a Kerr lens, an intense light pulse propagating in a nonlinear medium can experience nonlinear self-focusing (or self-focussing): the beam radius is decreased compared with that of a weak pulse. The physical mechanism is based on a Kerr nonlinearity with positive χ (3).
In beam propaga-tion, self-focusing and self trapping lead to lowering of thresholds for other nonlinear processes, such as stimulated Raman and Brillouin scattering, self-phase modulation, and optical damage.
Light self-focusing in the atmosphere: thin window model
2016年8月2日 · The propagation of such powerful laser beams through the atmosphere reveals many novel interesting features compared to traditional light self-focusing.
Self-focusing: Past and Present - Springer
Self-focusing has been an area of active scientific investigation for nearly 50 years. This book presents a comprehensive treatment of this topic and reviews both theoretical and experimental investigations of self-focusing.
Self-focusing: Theory - ScienceDirect
1975年4月1日 · INTRODUCTION THE THEORY of self-focusing is as interesting as its experimental manifestations because the simplest wave equation describing self-focusing is …
A review on self focusing in laser plasma interaction
2021年1月1日 · Self focusing is often seen when short pulse laser can propagate through any nonlinear medium. The two main important cases are found in self focusing, are Kerr-induced self-focusing and self-focusing in plasma.
Self-focusing: Past and Present: Fundamentals and Prospects (Topics …
2008年12月17日 · Self-focusing: Past and Present presents a comprehensive treatment of self-focusing and reviews both theoretical and experimental investigations of self-focusing. It connects the extensive early literature on self-focusing, filamentation, self-trapping, and collapse with more recent studies aimed at issues such as self-focusing of femtosecond ...
Self-focusing: Past and Present: Fundamentals and Prospects
2009年1月1日 · We review self-focusing and related phenomena and discuss physical mechanisms that give rise to the refractive index nonlinearity. This chapter presents a review of the theory of the...
Self-focusing - Vocab, Definition, and Must Know Facts - Fiveable
Self-focusing is a nonlinear optical effect where a light beam becomes narrower as it propagates through a medium due to the intensity-dependent refractive index. This phenomenon occurs when the intensity of the light creates a change in the refractive index of the medium, leading to a feedback loop that causes the beam to focus itself.
Self-focusing - (Laser Engineering and Applications) - Vocab
Self-focusing is a nonlinear optical phenomenon where a laser beam narrows as it propagates through a medium due to intensity-dependent refractive index changes.
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