Cogwheels for generation of surface plasmon polariton vortex

• المؤلفون الرئيسيون: Xu, Zhengji, Zhang, Dawei, Zhang, Dao Hua, Tobing, Landobasa Yosef Mario
• مؤلفون آخرون: School of Electrical and Electronic Engineering
• التنسيق: مقال
• اللغة: English
• منشور في: 2016
• الموضوعات: cogwheels; surface plasmon polariton; SPP vortex; whispering gallery modes; WGMs; circular polarisation; air ring; air cogs; gold film; cogwheel design; optical vortex; cogwheel geometries; polarisation direction
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/81876; http://hdl.handle.net/10220/39691

We propose a cogwheel structure formed by an air ring and equally distributed air cogs along the ring on a gold film for generation of surface plasmon polariton vortex. We show that a well-designed cogwheel can generate an optical vortex-like response and that the characteristics of such SPP vort...