Keywords symmetrical metal-cladding waveguide;Goos-H?nchen shift;stationary phase theory;Gaussian beam model;position-sensitive detector;wavelength sensing;ultrahigh-order mode;

• 双面金属包覆波导;古斯-汉欣位移;静态位相法;高斯光束法;位置灵敏探测器;波长传感;超高阶导模;