Optical filter with very large stopband (300 nm) based on a photonic-crystal vertical-directional coupler
Citation
Grande, M, O'Faolain, L, White, T et al. 2009, 'Optical filter with very large stopband (300 nm) based on a photonic-crystal vertical-directional coupler', Optics Letters, vol. 34, no. 21, pp. 3292-3294.