Kim Jin Tae, Ju Jung Jin, Park Suntak, Kim Min-su, Park Seung Koo, Shin Sang-Yung
Convergence Components and Materials Research Laboratory, ETRI, Daejeon 305-700, Republic of Korea.
Opt Express. 2010 Feb 1;18(3):2808-13. doi: 10.1364/OE.18.002808.
A hybrid plasmonic waveguide structure is proposed and fabricated for low-loss lightwave guiding along a metal stripe core. By embedding Au stripe in dual slab waveguides with high refractive-index contrast, the field of the guided mode is confined more in the two dielectric core layers. Thus, the propagation loss is significantly reduced. The guided mode is like a combination of a fundamental long-range surface plasmon polariton strip mode and a dual symmetric dielectric slab mode. We fabricate 5 nm-thick Au stripe optical waveguides and measure the optical properties at a wavelength of 1.31 microm. The propagation loss is less than 1.0 dB/cm with the metal stripe width of 1-5 microm.
提出并制作了一种混合等离子体波导结构，用于沿金属条纹芯进行低损耗光波导。通过将金条纹嵌入具有高折射率对比度的双平板波导中，导模场更多地限制在两个介电芯层中。因此，传播损耗显著降低。导模类似于基本的长程表面等离激元极化子条带模式和双对称介电平板模式的组合。我们制作了5纳米厚的金条纹光波导，并在波长为1.31微米时测量了光学特性。当金属条纹宽度为1 - 5微米时，传播损耗小于1.0分贝/厘米。
