Evidence of Bloch wave propagation within photonic crystal waveguides
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- Martin, M., Benyattou, T., Orobtchouk, R. et al. Appl. Phys. B (2006) 82: 9. doi:10.1007/s00340-005-2023-y
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We report in this paper results obtained from characterizations of photonic band gap waveguide, using near field optical microscopy. We will show evidence of a Bloch wave propagating within our W1 photonic crystal waveguides (PCWs) structure, using a 2D Fourier transform approach. The processed image will then be compared to simulations obtained from plane wave method. This comparison exhibits that near-field measurements, using tapered optical fibers as probes, are mainly sensitive to the electric field propagating within the structure.