TY - JOUR

T1 - Experimental Demonstration of Surface Plasmon Polaritons Reflection and Transmission Effects

AU - Zheng, Lei

AU - Zywietz, Urs

AU - Evlyukhin, Andrey

AU - Roth, Bernhard

AU - Overmeyer, Ludger

AU - Reinhardt, Carsten

N1 - Funding Information: Funding: This research was funded by the Deutsche Forschungsgemeinschaft (DFG) under Germany’s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453) and the DFG (German Research Foundation, Project ID RE3012/4-1 and RE3012/2-1). The publication of this article was funded by the Open Access Fund of the Leibniz Universität Hannover.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - Special integrated photonic surface structures composed of a dielectric semicircle ridge and a dielectric block placed on a metal substrate are proposed for the investigation of surface plasmon polariton (SPP) reflection and transmission effects. A fabrication method called microscope projection photolithography was employed for the preparation of the structures. Leakage radiation microscopy was applied for the excitation and observation of surface plasmon polaritons (SPPs). It was observed that SPPs exhibit a remarkable decrease in intensity when impinging onto the rectangular dielectric block. Nevertheless, the transmitted wave out of the dielectric block was always observable. The propagation behavior of both the reflected waves at two boundaries (air/dielectric and dielectric/air) and the transmitted wave inside the dielectric block were demonstrated for different SPP incident conditions. The variation of the angles of reflection and transmission with respect to the incident angle was analytically and experimentally investigated. An agreement between the calculated results and the experimental results was obtained. Our findings might allow for novel applications in sensing and analytics once the structures will be functionalized.

AB - Special integrated photonic surface structures composed of a dielectric semicircle ridge and a dielectric block placed on a metal substrate are proposed for the investigation of surface plasmon polariton (SPP) reflection and transmission effects. A fabrication method called microscope projection photolithography was employed for the preparation of the structures. Leakage radiation microscopy was applied for the excitation and observation of surface plasmon polaritons (SPPs). It was observed that SPPs exhibit a remarkable decrease in intensity when impinging onto the rectangular dielectric block. Nevertheless, the transmitted wave out of the dielectric block was always observable. The propagation behavior of both the reflected waves at two boundaries (air/dielectric and dielectric/air) and the transmitted wave inside the dielectric block were demonstrated for different SPP incident conditions. The variation of the angles of reflection and transmission with respect to the incident angle was analytically and experimentally investigated. An agreement between the calculated results and the experimental results was obtained. Our findings might allow for novel applications in sensing and analytics once the structures will be functionalized.

KW - Microscope projection photolithography

KW - Plasmon leakage radiation

KW - Plasmonic sensing

KW - Surface plasmon polaritons

KW - Surface waves manipulation

UR - http://www.scopus.com/inward/record.url?scp=85074174685&partnerID=8YFLogxK

U2 - 10.3390/s19214633

DO - 10.3390/s19214633

M3 - Article

C2 - 31653086

AN - SCOPUS:85074174685

VL - 19

JO - Sensors (Switzerland)

JF - Sensors (Switzerland)

SN - 1424-8220

IS - 21

M1 - 4633

ER -