The Gaussian lenses give birth to optical vortices in laser beams

被引:46
作者
Kreminskaya, LV
Soskin, MS
Khizhnyak, AI
机构
[1] Ukrainian Acad Sci, Inst Phys, UA-252650 Kiev 22, Ukraine
[2] Ukrainian Acad Sci, Int Ctr Inst Appl Phys, UA-252650 Kiev, Ukraine
关键词
optical singularities; optical vortices; laser beam; Gaussian lens;
D O I
10.1016/S0030-4018(97)00473-2
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
It is shown theoretically that Gaussian-like lenses initiate birth, evolution and annihilation of the phase singularities in coherent beams with initially smooth wavefront. The stigmatic lens originates circular edge dislocation, which disappears immediately. The astigmatic Gaussian lenses give birth to quadrupoles of opposite single-charged optical vortices. The optical vortices move in space along a closed trajectory, the more stretched the greater is the lens astigmatism. The developed model gives the complete scenario of the optical singularities origin and evolution, and describes naturally all experimentally observed features for known light-induced Gaussian-like nonlinear lenses. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:377 / 384
页数:8
相关论文
共 29 条
[1]   PHASE SINGULARITIES VIA NONLINEAR BEAM-PROPAGATION IN SODIUM VAPOR [J].
ACKEMANN, T ;
KRIEGE, E ;
LANGE, W .
OPTICS COMMUNICATIONS, 1995, 115 (3-4) :339-346
[2]  
ALTSHULER GB, 1987, KVANTOVAYA ELEKTRON+, V14, P2518
[3]  
[Anonymous], LECT SERIES SESSION
[4]   VORTICES AND DEFECT STATISTICS IN 2-DIMENSIONAL OPTICAL CHAOS [J].
ARECCHI, FT ;
GIACOMELLI, G ;
RAMAZZA, PL ;
RESIDORI, S .
PHYSICAL REVIEW LETTERS, 1991, 67 (27) :3749-3752
[5]   WAVE-FRONT DISLOCATIONS - TOPOLOGICAL LIMITATIONS FOR ADAPTIVE SYSTEMS WITH PHASE CONJUGATION [J].
BARANOVA, NB ;
MAMAEV, AV ;
PILIPETSKY, NF ;
SHKUNOV, VV ;
ZELDOVICH, BY .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1983, 73 (05) :525-528
[6]   OPTICAL WAVE-FRONT DISLOCATIONS AND THEIR PROPERTIES [J].
BASISTIY, IV ;
SOSKIN, MS ;
VASNETSOV, MV .
OPTICS COMMUNICATIONS, 1995, 119 (5-6) :604-612
[7]  
BAZHENOV VY, 1990, JETP LETT+, V52, P429
[8]  
Borshch A. A., 1978, Ukrayins'kyi Fizychnyi Zhurnal, V23, P1977
[9]  
BORSHCH AA, 1978, J TECH PHYS, V48, P2367
[10]  
BORSHCH AA, 1978, QUANTUM ELECT, V8, P1095