Digital holographic tomography method for 3D observation of domain patterns in ferroelectric single crystals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F16%3A00469276" target="_blank" >RIV/61389021:_____/16:00469276 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.2257327" target="_blank" >http://dx.doi.org/10.1117/12.2257327</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2257327" target="_blank" >10.1117/12.2257327</a>

Result language

angličtina

Original language name

Digital holographic tomography method for 3D observation of domain patterns in ferroelectric single crystals

Original language description

We report on the development and implementation of the digital holographic tomography for the three-dimensio- nal (3D) observations of the domain patterns in the ferroelectric single crystals. Ferroelectric materials represent a group of materials, whose macroscopic dielectric, electromechanical, and elastic properties are greatly in uenced by the presence of domain patterns. Understanding the role of domain patterns on the aforementioned properties require the experimental techniques, which allow the precise 3D measurements of the spatial distribution of ferroelectric domains in the single crystal. Unfortunately, such techniques are rather limited at this time. The most frequently used piezoelectric atomic force microscopy allows 2D observations on the ferroelectric sample surface. Optical methods based on the birefringence measurements provide parameters of the domain patterns averaged over the sample volume. In this paper, we analyze the possibility that the spatial distribution of the ferroelectric domains can be obtained by means of the measurement of the wavefront deformation of the transmitted optical wave. We demonstrate that the spatial distribution of the ferroelectric domains can be determined by means of the measurement of the spatial distribution of the refractive index. Finally, it is demonstrated that the measurements of wavefront deformations generated in ferroelectric polydomain systems with small variations of the refractive index provide data, which can be further processed by means of the conventional tomographic methods.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of SPIE 10151, Optics and Measurement International Conference 2016

ISBN

978-1-5106-0753-8

ISSN

0277-786X

e-ISSN

—

Number of pages

10

Pages from-to

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Publisher name

SPIE, Society of Photo-Optical Instrumentation Engineers

Place of publication

Bellingham

Event location

Liberec

Event date

Oct 11, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000393154700019