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Updated: May 28, 2026
Fabrication and Operation of a Nano-Optical Conveyor Belt
Published on: August 26, 2015
Large enhancement and uniform distribution of optical near field through combining periodic bowtie nanoantenna with
Jianxiong Li1, Shuqi Chen, Ping Yu
1The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics and Teda Applied Physics School, Nankai University, Tianjin, China.
Abstract:
We present a novel (to the best of our knowledge) composite nanostructure composed of bowtie nanoantennas (BNAs) and rectangular nanoapertures, which provides a new way to improve the ability of the nanostructure to enhance the optical near field and obtain uniform near-field distribution in the z direction. It is specifically engineered to not only confine the incident light in the nanoscale but also to generate large localized near-field enhancement about 25 times larger than that of solitary BNAs. It also shows a more uniform near-field distribution in the z direction than that of solitary BNAs. The mechanisms of the large enhancement and the uniform near field are also discussed.
