Wave and ray spatial dynamics of the light field in the generation, evolution, and annihilation of phase dislocations

被引：9

作者：

Aksenov, VP ^{[1
]}

Izmailov, IV

Poizner, BN

Tikhomirova, OV

机构：

[1] Russian Acad Sci, Inst Atmospher Opt, Siberian Div, Tomsk 634055, Russia

[2] Tomsk VV Kuibyshev State Univ, Tomsk 634050, Russia

来源：

OPTICS AND SPECTROSCOPY | 2002年 / 92卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1465468

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The spatial dynamics of the light field during the generation, evolution, and annihilation of screw phase dislocations in Gaussian optical beams is analyzed. The regularities of transformation of an aberration wave front of a beam into a singular front are exposed. The structure of the field of directions of the energy-flux density vector is analyzed on the basis of a solution of a parabolic wave equation for the complex amplitude of a monochromatic light field with the construction of streamlines and investigation of the full set of critical points in the corresponding dynamic system. It is established that the energy redistribution in the beam and appearance of dislocations occur in accordance with the transformation of singularities: local focusing of a streamline in the vicinity of a node is a precursor of a generated pair of screw dislocations, and the streamline takes on a helix shape near an unstable focus. (C) 2002 MAIK "Nauka/Interperiodica".

引用

页码：409 / 418

页数：10

共 23 条

[1]

Aksenov V.P., 1999, OPTICS ATMOSPHERE OC, V12, P952

[2] Reconstruction of singular phase of optical speckle field from the measurements of wave-front slopes [J].

Aksenov, VP ;

Tikhomirova, OV ;

Lisenko, AA .

SIXTH INTERNATIONAL SYMPOSIUM ON ATMOSPHERIC AND OCEAN OPTICS, 1999, 3983 :101-107

[3]

ANANEV YA, 1979, OPTICAL RESONATORS P

[4]

[Anonymous], 1999, NONLINEAR DYNAMICS C

[5]

BARANOVA NB, 1981, ZH EKSP TEOR FIZ+, V80, P1789

[6]

BERRY M, 1981, PHYSICS DEFECTS, P453

[7]

Bespalov V. I., 1968, P 2 ALL UN S NONL OP, P428

[8]

Born M., 1969, Principles of Optics, V4th

[9] TRANSVERSE LASER PATTERNS .1. PHASE SINGULARITY CRYSTALS [J].

BRAMBILLA, M ;

BATTIPEDE, F ;

LUGIATO, LA ;

PENNA, V ;

PRATI, F ;

TAMM, C ;

WEISS, CO .

PHYSICAL REVIEW A, 1991, 43 (09) :5090-5113

[10]

Goldstein H., 1950, Classical Mechanics

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