Electromagnetically induced transparency based on guided-mode resonances

Abstract

We present a novel, electromagnetically induced transparency system based on guided-mode resonances and numerically demonstrate its transmission characteristics through finite-difference time-domain simulations. The system is composed of two planar dielectric waveguides and a subwavelength grating. It is shown that by coupling the two resonant guide modes with a low- and high-quality factor, a narrow transparency window is generated inside a broad background transmission dip produced by the guided-mode resonance. Our work could provide another efficient way toward the realization of electromagnetically induced transparency.