Paper
15 September 2004 Bloch mode coupling investigation in silicon-on-insulator W1 photonic crystal waveguide
Benoit Cluzel, Davy Gerard, Emmanuel Picard, Thomas Charvolin, Vincent Calvo, Emmanuel Hadji, Frederique de Fornel
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Abstract
We report in this paper the study of a W1 photonic crystal waveguide which supports two Bloch modes having different parity. A monomode ridge waveguide etched in a Silicon-On-Insulator substrate and connecting to the photonic crystal waveguide allows us to excite the even Bloch mode. Transmission measurements, performed on a broad spectral range, evidence the even mode propagation along the defect line and experimental spectrum is discussed in light of band diagram and FDTD calculations. Then spectrally resolved near-field patterns obtained by using a scanning near field optical microscope in collection mode for wavelengths inside and outside the multimode region of the photonic crystal waveguide clearly demonstrate the even mode parity change along the defect line.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Benoit Cluzel, Davy Gerard, Emmanuel Picard, Thomas Charvolin, Vincent Calvo, Emmanuel Hadji, and Frederique de Fornel "Bloch mode coupling investigation in silicon-on-insulator W1 photonic crystal waveguide", Proc. SPIE 5450, Photonic Crystal Materials and Nanostructures, (15 September 2004); https://doi.org/10.1117/12.545735
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KEYWORDS
Waveguides

Photonic crystals

Near field scanning optical microscopy

Near field

Radio propagation

Silicon

Light wave propagation

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