首页> 外文期刊>Optics Letters >Strengthening the longitudinal component of the sharply focused electric field by means of higher-order laser beams
【24h】

Strengthening the longitudinal component of the sharply focused electric field by means of higher-order laser beams

机译:借助高阶激光束增强锐聚焦电场的纵向分量

获取原文
获取原文并翻译 | 示例
           

摘要

We study the sharp focusing of differently polarized low-order and high-order beams, including Bessel and Laguerre-Gaussian (LG) modes, to compare them using several criteria: the size of a light spot, the intensity ratio of the central peak and sidelobes, and the intensity of the longitudinal electric field component. The experiments performed using the near-field microscopy techniques are in general agreement with the results of the numerical simulation. We have validated the growth of the longitudinal component in the focus for high-order modes at moderate NA = 0.6-0.8, and essential lower sidelobes of Bessel modes, in comparison with LG modes.
机译:我们研究了不同偏振的低阶和高阶光束(包括Bessel和Laguerre-Gaussian(LG)模式)的锐利聚焦,并使用以下几个标准对其进行了比较:光斑的大小,中心峰的强度比和旁瓣以及纵向电场分量的强度。使用近场显微镜技术进行的实验与数值模拟的结果总体上是一致的。与LG模式相比,我们已经验证了在中等NA = 0.6-0.8的高阶模式和Bessel模式的基本下旁瓣处焦点的纵向分量的增长。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号