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A new scattering theory for describing disorder-induced multiple scattering events in photonic crystal waveguides is presented with matching experiments on GaAs samples. Our self-consistent 3D model successfully reproduces the rich experimental features including band-edge resonances.
A new design is proposed for tailoring the farfield of high-Q photonic crystal nanocavities. We achieved experimentally a six-fold improvement of the collection efficiency. This will improve single photon sources based on photonic crystals considerably.
We investigate the impact of disorder on the propagation of photonic crystal waveguide modes using phase-sensitive optical low-coherence reflectometry.Combined with a suitable numerical processing, this technique reveals a considerable amount of information that we cast as time-wavelength reflectance maps. By comparing measurements on different samples, we easily identify inter-mode scattering and...
The authors investigates the impact of structural disorder in line-defect photonic crystal waveguides through optical low-coherence reflectometry (OLCR). The potential of photonic crystal waveguides for dispersion engineering and, in particular, controlling the propagation delay was realised very early, however, the practical implementation of this beautiful concept had been hampered by severe technological...
The optical low-coherence reflectometry technique is proposed for investigating photonic crystal slab waveguides. We show its ability of providing a direct measurement of the group delay and highlight the structural disorder resulting into TE/TM scattering.
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