首页    期刊浏览 2025年06月09日 星期一
登录注册

文章基本信息

  • 标题:Far-field measurements of vortex beams interacting with nanoholes
  • 本地全文:下载
  • 作者:Xavier Zambrana-Puyalto ; Xavier Vidal ; Ivan Fernandez-Corbaton
  • 期刊名称:Scientific Reports
  • 电子版ISSN:2045-2322
  • 出版年度:2016
  • 卷号:6
  • 期号:1
  • DOI:10.1038/srep22185
  • 语种:English
  • 出版社:Springer Nature
  • 摘要:We measure the far-field intensity of vortex beams going through nanoholes. The process is analyzed in terms of helicity and total angular momentum. It is seen that the total angular momentum is preserved in the process, and helicity is not. We compute the ratio between the two transmitted helicity components, γm,p. We observe that this ratio is highly dependent on the helicity (p) and the angular momentum (m) of the incident vortex beam in consideration. Due to the mirror symmetry of the nanoholes, we are able to relate the transmission properties of vortex beams with a certain helicity and angular momentum, with the ones with opposite helicity and angular momentum. Interestingly, vortex beams enhance the γm,p ratio as compared to those obtained by Gaussian beams.
国家哲学社会科学文献中心版权所有