An asymmetric one-dimensional periodic waveguide is proposed for slowing light down. The waveguide consists of a straight dielectric strip and a single-side Bragg grating and thus is simple and easy for fabricating and has ultraflat dispersion relations in large wave-vector range supporting simultaneous ultralow-group-velocity- and zero-group-velocity-dispersion modes. It is numerically demonstrated that the modes can be localized in the waveguide.
© 2010 Optical Society of America
Original Manuscript: April 6, 2010
Revised Manuscript: July 5, 2010
Manuscript Accepted: July 8, 2010
Published: August 18, 2010
Chun Jiang, "Asymmetric one-dimensional periodic slow-light waveguide," J. Opt. Soc. Am. B 27, 1845-1848 (2010)