Spodumene, α-LiAlSi₂O₆ - A new natural SRS-active crystal with three <i>x</i>⁽³⁾-promoting vibrational modes

Autor(en)

Alexander A. Kaminskii, Ladislav Bohaty, Eugen Libowitzky, Hanjo Rhee, Oliver Lux, Hans-Joachim Eichler, Reiner Kleinschrodt, Hitoki Yoneda, Akira Shirakawa, Petra Becker

Abstrakt

a-LiAlSi2O6, known as mineral spodumene, is introduced as a novel SRS-active crystal with monoclinic symmetry C2/c. Under picosecond laser excitation Raman-induced steady-state c(3)-nonlinear generation in the visible and near-IR is observed in the crystals. All recorded Stokes and anti-Stokes high-order lasing components are identified and correspond to three SRS-promoting phonon modes with uSRS1z709 cm-1, uSRS2z357 cm-1 and uSRS3z1074 cm-1. On the basis of the results of a spontaneous Raman scattering study they were assigned to vibrations of the tetrahedral [SiO4] groups of the silicate chains and lattice modes of Li-O or Al-O of the crystal structure. A brief review in tabular form of so far known SRS-active natural crystals (minerals) is given as well.

Organisation(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

Russian Academy of Sciences, Universität zu Köln, Technische Universität Berlin, The University of Electro-Communications

Journal

Optical Materials

Band

78

Seiten

235-246

Anzahl der Seiten

12

ISSN

0925-3467

DOI

https://doi.org/10.1016/j.optmat.2018.02.022

Publikationsdatum

04-2018

Peer-reviewed

Ja

ÖFOS 2012

104026 Spektroskopie, 105116 Mineralogie

Schlagwörter

ASJC Scopus Sachgebiete

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Spectroscopy, Allgemeine Computerwissenschaft, Inorganic Chemistry, Physical and Theoretical Chemistry, Organic Chemistry

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/5b2a9522-3e50-4864-9ec1-5d507a186466