Article Dans Une Revue Journal of Applied Physics Année : 2003

Photovariation of grating-assisted coupling of terahertz waves into a silicon waveguide

Résumé

Using terahertz (THz) time-domain spectroscopy, we study the coupling of THz waves into a silicon waveguide by means of a grating coupler. We vary the efficiency of the coupling coefficient for selected frequencies up to 20% in amplitude (40% in intensity) by generating photocarriers in the silicon material through illumination of the waveguide with white light. The experimental data are well fitted using the differential method to model the grating diffraction.
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Dates et versions

hal-04928589 , version 1 (04-02-2025)

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F. Aquistapace, L. Duvillaret, Frédéric Garet, Jean-François Roux, J.-L. Coutaz. Photovariation of grating-assisted coupling of terahertz waves into a silicon waveguide. Journal of Applied Physics, 2003, 94 (12), pp.7888-7891. ⟨10.1063/1.1629387⟩. ⟨hal-04928589⟩
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