Super-Gaussian conical refraction beam

被引：28

作者：

Turpin, A. ^{[1
]}

Loiko, Yu V. ^{[2
]}

Kalkandkiev, T. K. ^{[1
,3
,4
]}

Tomizawa, H. ^{[5
]}

Mompart, J. ^{[5
]}

机构：

[1] Univ Autonoma Barcelona, Dept Fis, E-08193 Bellaterra, Spain

[2] Aston Univ, Sch Engn & Appl Sci, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands, England

[3] Conerefringent Opt SL, E-08800 Vilanova I La Geltru, Spain

[4] Conerefringent Opt SL, E-08800 La Geltr, Spain

[5] JASRI SPring 8, Sayo, Hyogo 6795198, Japan

来源：

OPTICS LETTERS | 2014年 / 39卷 / 15期

关键词：

FLAT-TOPPED BEAMS; LASER-BEAMS; COHERENT; PROPAGATION; LIGHT; ILLUMINATION; GENERATION; CRYSTALS; VECTOR;

D O I：

10.1364/OL.39.004349

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the transformation of Gaussian input beams into super-Gaussian beams with a quasi flat-top transverse profile by means of the conical refraction phenomenon by adjusting the ratio between the ring radius and the waist radius of the input beam to 0.445. We discuss the beam propagation of the super-Gaussian beam and show that it has a confocal parameter three times larger than the one that would be obtained from a Gaussian beam. The experiments performed with a KGd(WO4)(2) biaxial crystal are in good agreement with the theoretical predictions. (C) 2014 Optical Society of America

引用

页码：4349 / 4352

页数：4

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