Jágerská, J.Zhang, H.Le Thomas, N.Houdré, R.2009-10-092009-10-09200910.1063/1.3222905https://infoscience.epfl.ch/handle/20.500.14299/43559WOS:000270096900005We experimentally investigate the out-of-plane radiation losses of photonic crystal coupled-cavity waveguides. We observe a strong variation in the losses along the dispersion curve and show that such variation is closely linked with the specific far-field radiation pattern of a single cavity constituent. A simple theoretical model based on tight-binding approximation is used to describe this behavior.optical waveguidesphotonic crystalstight-bindingcalculationsRadiation loss of photonic crystal coupled-cavity waveguidestext::journal::journal article::research article