New approaches for the fabrication of photonic structures of nonlinear optical materials |
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Authors: | JJ Carvajal MC Pujol M Aguiló JR Vázquez de Aldana P Moreno T Trifonov R Alcubilla J Ferré-Borrull LF Marsal R Macovez |
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Affiliation: | a Física i Cristal lografia de Materials i Nanomaterials (FiCMA-FiCNA), Univ. Rovira i Virgili (URV), Campus Sescelades, Marcel lí Domingo, s/n, E-43007 Tarragona, Spain b Servicio Láser, Univ. Salamanca, E-37008 Salamanca, Spain c Dept. Enginyeria Electrònica, Univ. Politècnica de Catalunya, E-08034 Barcelona, Spain d Dept. d’Enginyeria Electrònica, Univ. Rovira i Virgili (URV), E-43007 Tarragona, Spain e ICFO—Institut de Ciències Fotòniques, E-08860 Castelldefels, Spain |
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Abstract: | We revisited two different strategies to fabricate 1D photonic crystals of nonlinear optical dielectric materials based on ultrafast laser ablation of the surface of an RbTiOPO4 crystal, and selective etching of ferroelectric domains of the surface of a periodically poled LiNbO4 crystal. We evaluated their behaviour as Bragg diffraction gratings. We also presented the recent advances we developed in a new procedure of fabrication of 2D and 3D photonic crystals of KTiOPO4 (KTP) grown on the surface of a KTP substrate by liquid phase epitaxial means within the pores of a silicon macroporous template. Optical, structural, morphological, and compositional characterization for the photonic crystals produced through this technique are presented. |
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Keywords: | 42 65 &minus k 42 70 Mp 42 70 Qs 42 79 Dj 42 82 Ds 42 82 Fv |
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