Generalized dispersion analysis of arbitrarily cut monoclinic crystals

Sonja Höfer; Vladimir Ivanovski; Reinhard Uecker; Albert Kwasniewski; Jürgen Popp; Thomas G Mayerhöfer

doi:10.1016/j.saa.2017.05.039

Generalized dispersion analysis of arbitrarily cut monoclinic crystals

Spectrochim Acta A Mol Biomol Spectrosc. 2017 Oct 5:185:217-227. doi: 10.1016/j.saa.2017.05.039. Epub 2017 May 24.

Authors

Sonja Höfer¹, Vladimir Ivanovski², Reinhard Uecker³, Albert Kwasniewski³, Jürgen Popp⁴, Thomas G Mayerhöfer⁴

Affiliations

¹ Leibniz-Institut für Photonische Technologien e.V., Albert-Einstein-Straße 9, D-07745 Jena, Germany. Electronic address: sonja.hoefer@uni-jena.de.
² Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Sts. Cyril and Methodius University, Arhimedova 5, 1000 Skopje, Macedonia.
³ Leibniz-Institut für Kristallzüchtung, Max-Born-Straße 2, D-12489 Berlin, Germany.
⁴ Leibniz-Institut für Photonische Technologien e.V., Albert-Einstein-Straße 9, D-07745 Jena, Germany; Institut für Physikalische Chemie und Abbe Center of Photonics, Helmholtzweg 4, D-07743 Jena, Germany.

PMID: 28578071
DOI: 10.1016/j.saa.2017.05.039

Abstract

Dispersion analysis is applicable to arbitrarily cut monoclinic crystals of unknown orientation in order to find the symmetry axis. By this it is possible to differentiate between the transition moments oriented parallel and normal to the b-axis and to determine the dielectric tensor functions of those two principal directions. Dispersion analysis of arbitrarily cut monoclinic crystals is based on an extension of the evaluation scheme developed for arbitrarily cut orthorhombic crystals. We present dispersion analysis of monoclinic crystals exemplarily on spodumene (LiAl(SiO₃)₂) and yttrium orthosilicate (Y₂SiO₅).

Keywords: Crystal orientation; Dispersion analysis; Monoclinic crystals.