On the different ways for defining the effective focal length of a Kerr lens effect

被引：8
|
作者：
Leghmizi, S. [1 ]
Hasnaoui, A. [2 ]
Boubaha, B. [2 ]
Aissani, A. [1 ]
Ait-Ameur, K. [3 ,4 ]
机构：
[1] USTHB, Fac Phys, LEQ, BP 32, Algiers 16111, Algeria
[2] USTHB, Fac Phys, Lab Sci Nucl & Interact Rayonnement Matiere SNIRM, Equipe Interact Photons Matiere, BP 32, Algiers 16111, Algeria
[3] ENSICAEN, Ctr Rech Ions Mat & Photon CIMAP, UMR CEA CNRS 6252, 6 Bd Marechal Juin, F-14050 Caen, France
[4] Univ Caen, 6 Bd Marechal Juin, F-14050 Caen, France
来源：
LASER PHYSICS | 2017年 / 27卷 / 10期
关键词：
distributed lensing effect; Kerr lens; aberration coefficients; defocus; spherical aberration; on-axis intensity; focal shift; SOLID-STATE LASERS; MODULATION INSTABILITY; MEDIA; MODES; BEAMS;
D O I：
10.1088/1555-6611/aa8286
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The modelling of the Gaussian beam propagation through an inhomogeneous medium can be viewed as a distributed lensing effect (DLE). The latter takes the form of a Kerr lens effect characterised by a transverse phase profile, which is Gaussian in shape. It is convenient to characterise the DLE by an effective focal length, for which the value depends upon the modelling used. We compare four possible formulations of the effective focal length characterising a Kerr DLE.
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收藏
页数：7
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