A plasmonic splitter with flexible power splitting ratio at optical fiber communication waveband. Issue 1 (10th October 2014)

• Record Type: Journal Article
• Authors: Zhong, Ting; Lang, Peilin; Chen, Xi; Duan, Gaoyan; Yu, Li; Xiao, Jinghua
• Is Part Of: European physical journal. Number 68:Issue 1(2014:Oct.)
• Publication Date: 2014-10-10
• Subjects: Physics -- Periodicals; Microscopy -- Periodicals; Microchemistry -- Periodicals; Microstructure -- Periodicals; 530
• DOI: 10.1051/epjap/2014140170
• Languages: English
• ISSNs: 1286-0042

Abstract

Abstract : We present a plasmonic splitter based on metal-insulator-metal (MIM) structure. This splitter consists of two parallel waveguides and two resonators. One resonator is a ring tangentially connected with the two waveguides, and the other resonator is a semi-ring directly connected to the lower waveguide. The finite-difference time-domain (FDTD) method is used to numerically analyze the transmittance spectra of the splitter. The results show that this splitter is a beam splitter when the wavelength of the incident wave is around 1355 nm or 1553 nm. This splitter can also be regarded as a power splitter. To our knowledge, this is the first designed surface plasmon polaritons (SPPs) splitter which utilize both the communication wavelengths at around 1310 nm and 1550 nm. This characteristics show potential applications in future optical circuits.