Adiabatic law for self-focusing of optical beams.

Adiabatic law for self-focusing of optical beams: erratum.

Simulation of adiabatic thermal beams in a periodic solenoidal magnetic focusing field

The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Self-consistent particle-in-cell simulations are performed to verify earlier theoretical predictions of adiabatic thermal beams in a periodic solenoidal magnetic focusing field [K. In particular, results are obtained for adiabatic thermal beams that do not rotate in the Larmor ...

Self-accelerating self-trapped optical beams.

We present self-accelerating self-trapped beams in nonlinear optical media, exhibiting self-focusing and self-defocusing Kerr and saturable nonlinearities, as well as a quadratic response. In Kerr and saturable media such beams are stable under self-defocusing and weak self-focusing, whereas for strong self-focusing the beams off-shoot solitons while their main lobe continues to accelerate. Sel...

Self-Focusing in the Perturbed and Unperturbed Nonlinear Schrödinger Equation in Critical Dimension

The formation of singularities of self-focusing solutions of the nonlinear Schrodinger equation (NLS) in critical dimension is characterized by a delicate balance between the focusing nonlinearity and di raction (Laplacian), and is thus very sensitive to small perturbations. In this paper we introduce a systematic perturbation theory for analyzing the e ect of additional small terms on self fo...

Optical bistability that is due to mutual self-action of counterpropagating beams of light.

A new kind of optical bistability is discussed that is based on mutual self-action of light beams in a nonlinear medium. In particular, fundamentally new devices are proposed that use two counterpropagating incident beams and no reflection feedback. Self-focusing (or self-defocusing) and self-bending provide bistability with positive or negative nonlinearity.