caa a22 4500 463214692 CHVBK 20180405153152.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s00339-006-3750-6 doi (NATIONALLICENCE)springer-10.1007/s00339-006-3750-6 Structural properties of femtosecond laser-induced modifications in LiNbO3 [Elektronische Daten] [J. Burghoff, H. Hartung, S. Nolte, A. Tünnermann] Structural modifications induced by femtosecond laser pulses in LiNbO3 were studied. The influence of the processing and focusing parameters was investigated. Two different types of modifications could be identified. High laser fluences cause a refractive index decrease, material damage and stresses in the surrounding crystalline lattice. At low laser fluences, an extraordinary index increase was observed that allows for optical waveguiding. This kind of modification is thermally unstable and correlates to a weak distortion of the lattice. The electrooptic coefficient measured in a waveguide was found to be substantially reduced. The mechanisms underlying the structural modifications are discussed. Springer-Verlag, 2006 Burghoff J. Institut für Angewandte Physik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743, Jena, Germany aut Hartung H. Institut für Angewandte Physik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743, Jena, Germany aut Nolte S. Institut für Angewandte Physik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743, Jena, Germany aut Tünnermann A. Institut für Angewandte Physik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743, Jena, Germany aut Applied Physics A Springer-Verlag 86/2(2007-02-01), 165-170 0947-8396 86:2<165 2007 86 339 https://doi.org/10.1007/s00339-006-3750-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-006-3750-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Burghoff J. Institut für Angewandte Physik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743, Jena, Germany aut NATIONALLICENCE 700 1- Hartung H. Institut für Angewandte Physik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743, Jena, Germany aut NATIONALLICENCE 700 1- Nolte S. Institut für Angewandte Physik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743, Jena, Germany aut NATIONALLICENCE 700 1- Tünnermann A. Institut für Angewandte Physik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743, Jena, Germany aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 86/2(2007-02-01), 165-170 0947-8396 86:2<165 2007 86 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer