Tuniz Alessandro, Jain Chhavi, Weidlich Stefan, Schmidt Markus A
Opt Lett. 2016 Feb 1;41(3):448-51. doi: 10.1364/OL.41.000448.
We show broadband azimuthal polarization state conversion using an entirely connectorized step-index fiber with a central gold nanowire. This device provides broadband polarization discrimination of the low-loss TE01 fiber mode with respect to all other modes, and converts light into the azimuthal polarization state, resulting in a high beam quality and an azimuthal conversion efficiency of 37%. The device is monolithically integrated into fiber circuitry, representing a new platform for plasmonics and fiber optics and enabling important applications in super-resolution microscopy, laser tweezing, and plasmonic superfocussing.
我们展示了使用一种带有中心金纳米线的全连接阶跃折射率光纤实现宽带方位角偏振态转换。该器件对低损耗TE01光纤模式相对于所有其他模式提供宽带偏振辨别，并将光转换为方位角偏振态，从而实现高光束质量和37%的方位角转换效率。该器件被单片集成到光纤电路中，代表了等离子体学和光纤光学的一个新平台，并在超分辨率显微镜、激光镊子和等离子体超聚焦等方面实现重要应用。
