Grating-assisted superresolution of slow waves in Fourier space
| Autor: | Romuald Houdré, N. Le Thomas, Peter Ingo Borel, Andrei V. Lavrinenko, Lars Hagedorn Frandsen, Jacob Fage-Pedersen |
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| Rok vydání: | 2007 |
| Předmět: |
Physics
CHIP business.industry Fourier optics Physics::Optics Grating Condensed Matter Physics GUIDE BAND Electronic Optical and Magnetic Materials RESONATORS symbols.namesake LIGHT Fourier transform Optics Dispersion relation Light cone Dispersion (optics) symbols Optoelectronics Photonics business Photonic crystal |
| Zdroj: | Thomas, N L, Houdré, R, Frandsen, L H, Fage-Pedersen, J, Lavrinenko, A & Borel, P I 2007, ' Grating-assisted superresolution of slow waves in Fourier space ', Physical Review B Condensed Matter, vol. 76, no. 3, pp. 035103 . https://doi.org/10.1103/PhysRevB.76.035103 |
| ISSN: | 1550-235X 1098-0121 |
| DOI: | 10.1103/physrevb.76.035103 |
| Popis: | We present a far-field optical technique allowing measurements of the dispersion relation of electromagnetic fields propagating under the light cone in photonic nanostructures. It relies on the use of a one-dimensional grating to probe the evanescent tail of the guided field in combination with a high-numerical-aperture Fourier- space imaging setup. A high-resolution spectroscopy of the far-field emission diagram allows us to accurately and efficiently determine the dispersion curve and the group-index dispersion of planar photonic crystal waveguides operating in the slow-light regime. |
| Databáze: | OpenAIRE |
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