The property research of the transmission sinusoidal grating with fabrication of LIGA process

The transmission sinusoidal grating (TSG) shows a different diffraction pattern with conventional black-white transmission grating (BWTG), which can focus the diffraction energy on a higher order and has been widely used in the spectrum instruments. According to the description of the scalar diffraction theory, the numerical simulation for diffraction properties of the TSG has been studied for years. However, the fabrication of the TSG is...