0444544 - ÚFP 2016 RIV US eng C - Conference Paper (international conference)
Mokrý, Pavel - Steiger, Kateřina - Psota, Pavel - Doleček, Roman - Vojtíšek, Petr - Lédl, Vít
Digital holographic interferometry as an experimental instrumentation for measurements of macroscopic properties of polydomain ferroelectrics.
Proceedings of SPIE Vol. 9442: Optics and Measurement Conference 2014. Vol. 9442. Bellingham: SPIE-INT SOC OPTICAL ENGINEERING, 2015 - (Kovačičinová, J.; Vít, T.), 94420V-94420V. SPIE. ISBN 978-1-62841-557-5. ISSN 0277-786X.
[Optics and Measurement Conference 2014 (OaM 2014). Liberec (CZ), 07.10.2014-10.10.2014]
R&D Projects: GA MŠMT(CZ) LO1206; GA ČR(CZ) GA14-32228S
Institutional support: RVO:61389021
Keywords : Holographic interferometry * Optical properties * Polarization * Refractive index * Stereoscopy * Crystals
Subject RIV: JB - Sensors, Measurment, Regulation
Result website:
http://spie.org/Publications/Proceedings/Paper/10.1117/12.2178485DOI: https://doi.org/10.1117/12.2178485

n this work, the theoretical study of macroscopic dielectric and optical properties of ferroelectric polydomain samples is presented. The role of average spontaneous polarization of the polydomain sample on the macroscopic dielectric response is analyzed. The measurement method of average spontaneous polarization using optical methods is suggested and analyzed. The presented analysis is focused on the computation of optical properties near ferroelectric domain walls. The computation of refractive index in the regions near neutral domain walls is presented. Since it is known that the refractive index depends on the configuration of the crystal lattice within a particular domain and on the internal and external electric fields, the obtained results will be used for a suggested method of 3D imaging of ferroelectric domain walls and internal electric fields using digital holographic interferometry.
Permanent Link: http://hdl.handle.net/11104/0247053