Near-field optical investigation of three-dimensional photonic crystals


Flück, E. and Hulst, N.F. van and Vos, W.L. and Kuipers, L. (2003) Near-field optical investigation of three-dimensional photonic crystals. Physical Review E: Statistical, nonlinear, and soft matter physics, 68 (1). 015601-1. ISSN 1539-3755

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Abstract:We show that the coupling of light from an external pointlike light source into a three-dimensional photonic crystal depends o­n the relative launching position with respect to the crystal lattice as well as o­n the frequency of light. The results are obtained with a near-field technique which is used to acquire optical information beyond the diffraction limit and to access optical details within the unit cell of the crystal. The experiments are performed at frequencies near the second-order L-gap. As a result, the changes in the shape of the near-field pattern are explained by the photonic properties of the crystal. ¿2003 The American Physical Society
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Copyright:© 2003 The American Physical Society
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