A general <Emphasis Type="Italic">Z</Emphasis>-scan theory |
| |
Authors: | L?Pálfalvi B?C?Tóth G?Almási J?A?Fül?p J?Hebling |
| |
Institution: | (1) Department of Physics, Mangalore University, Mangalagangotri, Karnataka, 574199, India;(2) Department of Physics, National Institute of Technology Karnataka, Surathkal, Mangalore, 575025, India;(3) Lasers and Nonlinear Optics Lab, Department of Science and Humanities, National Institute of Technology Calicut, Kerala, 673601, India; |
| |
Abstract: | A novel Z-scan theory based on the solution of the nonlinear paraxial wave equation, completed by the Huygens–Fresnel principle is
introduced. This theory is valid for the general case, i.e. for thick samples and large nonlinearities including both nonlinear
refraction and absorption. In both limiting cases of thin sample and weak nonlinearity, predictions of this model are in good
agreement with theories not using parabolic approximation for the beam profile. It is shown that the widely used parabolic
approximation leads to inadequate results when evaluating Z-scan measurements. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|