Enhancement of optical near field by bowtie nanoantenna with Vstructured hole

摘要

In this paper, we theoretically design a nanostructure combined bowtie nanoantenna with V-structured hole, which offers a way to increase the ability of the nanostructure to enhance the optical near field. This nanostructure is designed to both limit the incident light in the nanoscale and produce large near-field enhancement. In addition, we study the effect of the geometric parameters of the bowtie nanoantenna with V-structured hole on the enhancement. Such structure will be beneficial to the focusing and collimating capabilities of integrated lens antennas.