%0 Journal Article %T Semi-analytic method for slow light photonic crystal waveguide design %A Patrick Blown %A Caitlin Fisher %A Felix J. Lawrence %A Nadav Gutman %A C. Martijn de Sterke %J Physics %D 2012 %I arXiv %R 10.1016/j.photonics.2012.02.005 %X We present a semi-analytic method to calculate the dispersion curves and the group velocity of photonic crystal waveguide modes in two-dimensional geometries. We model the waveguide as a homogenous strip, surrounded by photonic crystal acting as diffracting mirrors. Following conventional guided-wave optics, the properties of the photonic crystal waveguide may be calculated from the phase upon propagation over the strip and the phase upon reflection. The cases of interest require a theory including the specular order and one other diffracted reflected order. The computational advantages let us scan a large parameter space, allowing us to find novel types of solutions. %U http://arxiv.org/abs/1202.6426v1