最鷗剔 Nanjing University 1 THz4 Plasmonics Photonics 1GHz 1MHz十 Electronics The past 1kHz十 十 10nm 100nm 1μm 10um100um 1mm Critical dimension Dielectric Superlatice Laboratory Nat.Lab.Microstructures Dr.Tao Li taoli@nju.edu.cn
Dielectric Superlattice Laboratory Nat. Lab. Microstructures Dr. Tao Li taoli@nju.edu.cn Nanjing University
鲁 Nanjing University 亚波长光波导 h Sub-Wavelength Waveguide END<0 ND :: (a) D e>0 ND END<O 0.0 0.3 0.5 0.8 1.0 2 TM even (a) 2D y 0 1 TM odd Dielectric (ea) TM TM TE TM TE TE 3D Incident wave 0 1 2 Metal(en） Gap Distance h/o Dielectric Superlattice Nat.Lab.Microstructures Dr.Tao Li taoli@nju.edu.cn
Dielectric Superlattice Laboratory Nat. Lab. Microstructures Dr. Tao Li taoli@nju.edu.cn Nanjing University Sub-Wavelength Waveguide
鲁 Nanjing University 亚波长波导 14 -MIM ▲MIM (wni) M IMI --Single Interface 10 (口 12 10 8 六 (@) 50) 3.0μm (c) 1.5um (d) 0.5um <300nm 600 nm 1 um 2um 3m 40 30 I(au) 20 250nm Excitation spot 10 0 010 0 20μm 20 010200 1020 x-direction (um) x-direction (um)x-direction (um) λ=785m Dielectric Superlattice Laboratory Nat.Lab.Microstructures Dr.Tao Li taoli@nju.edu.cn
传播长度 VS 场局域性！ Dielectric Superlattice Laboratory Nat. Lab. Microstructures Dr. Tao Li taoli@nju.edu.cn Nanjing University 亚波长波导 =785nm
鲁 Nanjing University 定向耦合器 Focused (a) Focused Incident Incident (c) PMMA PMMA Spot Spot Gold Gold Glass Substrate Glass Substrate (b) Input Signal (d) --Drop D BIUUIMIUIY Nat.Lab.Microstructures Dr.Tao Li taoli@nju.edu.cn
Dielectric Superlattice Laboratory Nat. Lab. Microstructures Dr. Tao Li taoli@nju.edu.cn Nanjing University 定向耦合器