Three-dimensional imaging of ferroelectric domain structure in periodically poled lithium niobate using digital holographic tomography

2018 ◽  
Vol 112 (15) ◽  
pp. 152903 ◽  
Author(s):  
Pavel Mokrý ◽  
Pavel Psota ◽  
Jan Václavík ◽  
Juraj Sládek ◽  
Kateřina Steiger ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Domain Structure ◽  
Three Dimensional ◽  
Ferroelectric Domain ◽  
Periodically Poled ◽  
Three Dimensional Imaging ◽  
Periodically Poled Lithium Niobate ◽  
Ferroelectric Domain Structure

Techniques of observation and characterization of the domain structure in periodically poled lithium niobate

2000 ◽  
Vol 15 (12) ◽  
pp. 2814-2821 ◽  
Author(s):  
V. Bermúdez ◽  
A. Gil ◽  
L. Arizmendi ◽  
J. Colchero ◽  
A. M. Baró ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Domain Structure ◽  
Periodic Structures ◽  
Electrostatic Force ◽  
Scanning Force Microscopy ◽  
Piezoelectric Response ◽  
Periodically Poled ◽  
Force Microscopy ◽  
Periodically Poled Lithium Niobate ◽  
Scanning Force

The domain structure of bulk periodically poled lithium niobate crystals were analyzed by different techniques. Images of topography, electrostatic force, and piezoelectric response were studied by scanning force microscopy. All these images showed the domain structure of the samples. The electrostatic force was always attractive pointing to a dielectric origin. The diffraction of a laser beam by the periodic structures was also observed, denoting a periodic change of refractive index. From the angle of diffraction the domain spatial frequency was directly obtained. The topographic profile of etched samples was studied by both scanning force and scanning electron microscopy.

Scanning probe microscopy of well-defined periodically poled ferroelectric domain structure

2002 ◽  
Vol 80 (10) ◽  
pp. 1806-1808 ◽  
Author(s):  
M. Shvebelman ◽  
P. Urenski ◽  
R. Shikler ◽  
G. Rosenman ◽  
Y. Rosenwaks ◽  
...  
Keyword(s):  
Domain Structure ◽  
Scanning Probe Microscopy ◽  
Ferroelectric Domain ◽  
Scanning Probe ◽  
Periodically Poled ◽  
Probe Microscopy ◽  
Ferroelectric Domain Structure

scholarly journals Effect of domain structure fluctuations on the photorefractive response of periodically poled lithium niobate

2000 ◽  
Vol 62 (19) ◽  
pp. 13182-13187 ◽  
Author(s):  
E. V. Podivilov ◽  
B. I. Sturman ◽  
G. F. Calvo ◽  
F. Agulló-López ◽  
M. Carrascosa ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Domain Structure ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate

Ferroelectric Domain Structure of Pb(Zr.52Ti.48)03

1980 ◽  
Vol 38 ◽  
pp. 214-215
Author(s):  
E.K. Goo ◽  
R.K. Mishra
Keyword(s):  
Phase Transformation ◽  
Domain Structure ◽  
Tetragonal Phase ◽  
Ferroelectric Domain ◽  
Cubic Phase ◽  
Ion Milling ◽  
Thin Foils ◽  
Ferroelectric Domain Structure ◽  
Ferroelectric Domains

Ferroelectric domains are twins that are formed when PZT undergoes a phase transformation from a non-ferroelectric cubic phase to a ferroelectric tetragonal phase upon cooling below ∼375°C.,1 The tetragonal phase is spontaneously polarized in the direction of c-axis, making each twin a ferroelectric domain. Thin foils of polycrystalline Pb (Zr.52Ti.48)03 were made by ion milling and observed in the Philips EM301 with a double tilt stage.

scholarly journals A Broadband High-Diffraction-Efficiency Electro-Optic Bragg Deflector Based on Monolithic Dual-Grating Periodically-Poled Lithium Niobate

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 242
Author(s):  
An-Chung Chiang ◽  
Yuan-Yao Lin ◽  
Shou-Tai Lin ◽  
Yen-Yin Lin
Keyword(s):  
Lithium Niobate ◽  
Wave Theory ◽  
Beam Radius ◽  
Acceptance Angle ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate ◽  
Electro Optic ◽  
Recent Developments ◽  
Strong Focusing ◽  
Grating Design

Electro-optic (EO) Bragg deflectors have been extensively used in a variety of applications. Recent developments show that bandwidths and deflection efficiencies, as well as angular bandwidths, would significantly limit the utilization of EO Bragg deflectors, especially for applications which need strong focusing, such as intra-cavity applications. In this paper, we introduce a broadband EO Bragg deflector based on periodically-poled lithium niobate with a monolithic dual-grating design. We analyzed the deflection properties of this device by using a modified coupled wave theory and showed that this device can be still efficient for a small beam radius under strong focusing, whereas a single-grating one becomes very inefficient. Using a 1064-nm laser beam with a 100-μm beam radius, we obtained a 74% deflection efficiency with a 190-V bias voltage with a 0.5-mm-thick and 7.5-mm-long dual-grating sample. The acceptance angle for the Bragg condition of this device is as large as a few tens of mrad. The potential bandwidth of this device exceeds 500 nm if the proper operation region is chosen.

Sign in / Sign up

Export Citation Format

Share Document