Wu C.-LLi J.-HHsueh C.-H.JIA-HAN LI2021-08-052021-08-052018https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065873863&partnerID=40&md5=f79c09f5bd90dcb9198d125eb0d06249https://scholars.lib.ntu.edu.tw/handle/123456789/576844Exciting the surface plasmons with large near-field intensity enhancement is important for the nanophotonic applications. There are several ways to excite the surface plasmon polaritons (SPPs) [1]. In 2010, a remote-grating structure to excite the SPPs was proposed and studied [2]. By this way, the features and benefits of SPP excitations are the narrow spectral bandwidth and the large near-field intensity. In this paper, we consider the double layer remote-grating structure to excite SPPs and compare our simulation results with single layer remote-grating structures. The effects of structure parameters on field enhancements and bandwidths are studied. ? 2018 OSA - The Optical Society. All rights reserved.Bandwidth; Diffraction gratings; Electromagnetic wave polarization; Surface plasmon resonance; Double layers; Field enhancement; Grating structures; Near-field intensity; Single layer; Spectral bandwidth; Structure parameter; Surface plasmon polaritons; Surface plasmonsconference paper2-s2.0-85065873863