In the last decade, photonic crystals (PhC) - namely nanostructured materials with a periodic dielectric function - have opened new possibilities in the world of photonic devices, due to their unique properties that allow to control and manipulate light propagation. In order to fully understand the optical properties of PhC structures spectroscopic techniques like transmittance, reflectance and interferometry have been specifically tuned to provide a thorough characterization of the photonic band structure, light propagation and attenuation. In addition efficient theoretical tools have been developed that allow the design of PhC structures and the calculation of their optical response, which fully accounts for the experimental observations. Recent interesting results are reported on “slow-wave” propagation in 1D porous silicon coupled microcavities, as well as strong enhancement and spectral modification of emission in 2D waveguide-based PhC embedding active materials, and unusual propagation and diffraction effects in 3D polystyrene opals.
ONE- TWO- AND THREE-DIMENSIONAL PHOTONIC CRYSTALS: OPTICAL PROPERTIES AND APPLICATIONS
PATRINI, MADDALENA
2006-01-01
Abstract
In the last decade, photonic crystals (PhC) - namely nanostructured materials with a periodic dielectric function - have opened new possibilities in the world of photonic devices, due to their unique properties that allow to control and manipulate light propagation. In order to fully understand the optical properties of PhC structures spectroscopic techniques like transmittance, reflectance and interferometry have been specifically tuned to provide a thorough characterization of the photonic band structure, light propagation and attenuation. In addition efficient theoretical tools have been developed that allow the design of PhC structures and the calculation of their optical response, which fully accounts for the experimental observations. Recent interesting results are reported on “slow-wave” propagation in 1D porous silicon coupled microcavities, as well as strong enhancement and spectral modification of emission in 2D waveguide-based PhC embedding active materials, and unusual propagation and diffraction effects in 3D polystyrene opals.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
