School of Architecture&Urban Planning Lanzhou Jiaotong University Lanzhou 730070 China;
School of Science Lanzhou University of Technology Lanzhou 730050 China;
School of Science Lanzhou University of Technology Lanzhou 730050 China;
School of Science Lanzhou University of Technology Lanzhou 730050 China;
School of Science Lanzhou University of Technology Lanzhou 730050 China;
School of Science Lanzhou University of Technology Lanzhou 730050 China;
Plasmonic-induced absorption; fast light; metal-insulator-metal waveguide; finite element method;