According to the requirement of the sensitive wave band of 380—520 nm of the bionic micro-nano navigation sensor,a wire-grid polarizer,which is applicable for blue-violet light spectrum,was designed based on rigorous coupled-wave theory,and its behavior was analyzed with effective medium theory.

The diffraction characteristics of the phase mask for fiber grating fabrication is investigated using rigorous coupled-wave theory.

Meantime,the diffraction efficiency of the BSG is discussed based on rigorous coupled-wave theory.

Diffraction property of multi-layer dielectric gratings studied by rigorous coupled-wave analysis;

Extensive comparative investigation on the infrared reflection spectra of deep trench structures by means of effective medium approximation(EMA) and rigorous coupled-wave analysis(RCWA) reveals that the RCWA based method is accurate but time consuming while the EMA based calculation is much faster but less accurat.