  We derive in the present work topological photonic states purely based on
silicon, a conventional dielectric material, by deforming a honeycomb lattice
of silicon cylinders into a triangular lattice of cylinder hexagons. The
photonic topology is associated with a pseudo time reversal (TR) symmetry
constituted by the TR symmetry respected in general by the Maxwell equations
and the $C_6$ crystal symmetry upon design, which renders the Kramers doubling
in the present photonic system with the role of pseudo spin played by the
circular polarization of magnetic field in the transverse magnetic mode. We
solve Maxwell equations, and demonstrate new photonic topology by revealing
pseudo spin-resolved Berry curvatures of photonic bands and helical edge states
characterized by Poynting vectors.
