We report Q-factor enhancement in a one-dimensional (1D) photonic crystal (PC) cavity by embedding electromagnetic-induced-transparency (EIT) planar plasmonic metamaterials in the cavity. Microwave experiments show tenfold Q-factor enhancements, confirming the numerical simulations. More importantly, the Q-factor enhancement is mainly due to both the longitudinal and lateral confinements contributed by the 1D PC cavity and the planar EIT metamaterials, respectively. The combined PC-EIT structure with a prominent cavity figure of merit may find new applications in nonlinear optics, cavity quantum electrodynamics, and low-threshold lasers.
© 2011 Optical Society of America
Original Manuscript: September 14, 2010
Revised Manuscript: December 18, 2010
Manuscript Accepted: December 20, 2010
Published: February 10, 2011
Yunhui Li, Xuecheng Tao, Hong Chen, and Wing Yim Tam, "Q-factor enhancement in a one-dimensional photonic crystal cavity with embedded planar plasmonic metamaterials," J. Opt. Soc. Am. A 28, 314-317 (2011)