Universität zu Köln

Nemec, Ivan, Matulkova, Irena, Krumbe, Wolfgang, Andersen, Lionel, Cisarova, Ivana, Kroupa, Jan, Nemec, Petr ORCID: 0000-0001-6867-5942, Bohaty, Ladislav and Becker, Petra (2021). Linear and nonlinear optical properties, pyroelectricity and vibrational spectroscopy of polar guanidinium hydrogen phosphite, GuH(2)PO(3) , and hydrogen selenite, GuHSeO(3). Opt. Mater., 111. AMSTERDAM: ELSEVIER. ISSN 1873-1252

Full text not available from this repository.

Abstract

For the non-centrosymmetric guanidinium compounds GuH(2)PO(3) and GuHSeO(3) with polar symmetry P2(1) a fundamental characterization as optical materials is given, including X-ray crystal structure analysis and a vibrational spectroscopy (Raman and IR) study. In addition, for both polar crystals the pyroelectric coefficients and their temperature dependence are evaluated. Using large single crystals grown from aqueous solution, refractive indices and their dispersion in the wavelength range 435-1083 nm are determined by the prism method. From the data phase matching conditions for collinear second harmonic generation (SHG) are analysed. Both crystals allow the realization of phase matching for SHG of both, type I and type II processes. Quantification of SHG properties was performed for both powdered salts and GuH(2)PO(3) single crystals. The measurements of the pyroelectric coefficients in the temperature range 100-340 K show pronounced pyroelectricity but no indication for ferroelectric behaviour of the two crystals.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Nemec, Ivan UNSPECIFIED UNSPECIFIED UNSPECIFIED Matulkova, Irena UNSPECIFIED UNSPECIFIED UNSPECIFIED Krumbe, Wolfgang UNSPECIFIED UNSPECIFIED UNSPECIFIED Andersen, Lionel UNSPECIFIED UNSPECIFIED UNSPECIFIED Cisarova, Ivana UNSPECIFIED UNSPECIFIED UNSPECIFIED Kroupa, Jan UNSPECIFIED UNSPECIFIED UNSPECIFIED Nemec, Petr UNSPECIFIED orcid.org/0000-0001-6867-5942 UNSPECIFIED Bohaty, Ladislav UNSPECIFIED UNSPECIFIED UNSPECIFIED Becker, Petra UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-582545
DOI:	10.1016/j.optmat.2020.110722
Journal or Publication Title:	Opt. Mater.
Volume:	111
Date:	2021
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1873-1252
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CRYSTAL-STRUCTURE; SPECTRA; TETRAFLUOROBORATE; TRANSITION; GROWTH Multiple languages Materials Science, Multidisciplinary; Optics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58254