The transverse-magnetic photonic-bandgap-guidance properties are investigat
ed for a planar two-dimensional (2-D) Kagome waveguide configuration using
a full-vectorial plane-wave-expansion method. Single-moded well-localized l
ow-index guided modes are found. The localization of the optical modes is i
nvestigated with respect to the width of the 2-D Kagome waveguide, and the
number of modes existing for specific frequencies and waveguide widths is m
apped out.