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

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.

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.

Photochemical Reaction Patterns on Heterostructures of ZnO on Periodically Poled Lithium Niobate

2016 ◽  
Vol 8 (39) ◽  
pp. 26365-26373 ◽  
Author(s):  
Manpuneet Kaur ◽  
Qianlang Liu ◽  
Peter A. Crozier ◽  
Robert J. Nemanich
Keyword(s):  
Lithium Niobate ◽  
Photochemical Reaction ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate ◽  
Reaction Patterns

Diffusion-bonded stacks of periodically poled lithium niobate

1998 ◽  
Vol 23 (9) ◽  
pp. 664 ◽  
Author(s):  
Mark J. Missey ◽  
Vince Dominic ◽  
Lawrence E. Myers ◽  
Robert C. Eckardt
Keyword(s):  
Lithium Niobate ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate
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