Improvement of lens axicon's performance for longitudinally polarized beam generation by adding a dedicated phase transmittance

被引：42

作者：

Rajesh, K. B. ^{[1
]}

Jaroszewicz, Z. ^{[2
,3
]}

Anbarasan, P. M. ^{[4
]}

机构：

[1] Anna Univ, Dept Phys, Tirunelveli, India

[2] Inst Appl Opt, Dept Phys Opt, Warsaw, Poland

[3] Inst Natl Telecommun, Warsaw, Poland

[4] Periyar Univ, Dept Phys, Salem, India

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 26期

关键词：

DIVERGING ABERRATED LENS; SOLID IMMERSION LENS; HIGH-RESOLUTION; FOCAL DEPTH; SYSTEMS; SUPERRESOLUTION; DIFFRACTION; MODULATION; AXILENS; LIGHT;

D O I：

10.1364/OE.18.026799

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The focal field of high NA lens axicon with a binary-phase optical component is calculated by using vector diffraction theory. Numerical results show that for a radially polarized Bessel Gaussian input field, the proposed system generates a subwavelength (0.395 lambda) longitudinally polarized beam with large uniform depth of focus (approximately 6 lambda). (C) 2010 Optical Society of America

引用

页码：26799 / 26805

页数：7

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