Universität zu Köln

Kaminskii, Alexander A., Bohaty, Ladislav, Libowitzky, Eugen, Rhee, Hanjo, Lux, Oliver ORCID: 0000-0003-1491-0323, Eichler, Hans J., Kleinschrodt, Reiner, Yoneda, Hitoki, Shirakawa, Akira and Becker, Petra (2018). Spodumene, alpha-LiAlSi2O6 - A new natural SRS-active crystal with three chi((3))-promoting vibrational modes. Opt. Mater., 78. S. 235 - 247. AMSTERDAM: ELSEVIER. ISSN 1873-1252

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Abstract

alpha-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 chi((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 omega(SRS1) approximate to 709 cm(-1), omega(RSR2) approximate to 357 cm(-1) and omega(SRS3) approximate to 1074 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. (C) 2018 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kaminskii, Alexander A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bohaty, Ladislav UNSPECIFIED UNSPECIFIED UNSPECIFIED Libowitzky, Eugen UNSPECIFIED UNSPECIFIED UNSPECIFIED Rhee, Hanjo UNSPECIFIED UNSPECIFIED UNSPECIFIED Lux, Oliver UNSPECIFIED orcid.org/0000-0003-1491-0323 UNSPECIFIED Eichler, Hans J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kleinschrodt, Reiner UNSPECIFIED UNSPECIFIED UNSPECIFIED Yoneda, Hitoki UNSPECIFIED UNSPECIFIED UNSPECIFIED Shirakawa, Akira UNSPECIFIED UNSPECIFIED UNSPECIFIED Becker, Petra UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-190692
DOI:	10.1016/j.optmat.2018.02.022
Journal or Publication Title:	Opt. Mater.
Volume:	78
Page Range:	S. 235 - 247
Date:	2018
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1873-1252
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language STIMULATED RAMAN-SCATTERING; BETA SPODUMENE; ALPHA-QUARTZ; PYROXENES; LASER; SYSTEM; SPECTROSCOPY; DISPERSION; CONVERSION; OXIDES Multiple languages Materials Science, Multidisciplinary; Optics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/19069