The Resonance Peak Theory of Reflection Guided-mode Resonance Filters

摘要

In this paper, the physical principle of phase grating's resonance is discussed and the basic (approximate) formulae for the resonance is presented. According to the formulae, the properties of resonance peak, including the condition for multi-peak and single-peak, its relation with grating film thickness, incidence angle, and grating period, is also discussed. The results are consistent with those calculated with rigorous theory. Anl efficient design method for controlling the single-peak resonance wavelength is found.