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THz s-SNOM imaging of logarithmic spiral antennas

Archive ouverte : Communication dans un congrès

Santos, C. | Thomas, Louis | Hannotte, Théo | Lavancier, Melanie | Eliet, Sophie | Lampin, Jean-Francois | Peretti, Romain

Edité par HAL CCSD ; IEEE

oral. International audience. Probing the near-field of photonic components at sub-wavelength scale is of high interest to improve the design of future THz devices. We report on the THz near-field imaging of logarithmic spiral antennas by scattering-type scanning near-field optical microscopy (s-SNOM). Our results demonstrate that the s-SNOM technique allows to access the electric field distribution on the arms of an antenna and reveals non-trivial features at the center of the component.

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