Evaluation of internal electric field in periodically poled congruent lithium niobate crystals by far-field diffraction

2021 ◽  
Author(s):  
PRASATH RAGOTHAMAN K ◽  
Indhumathi Ravi Rajan ◽  
MADHUPRIYA G ◽  
Mubarak Ali ◽  
Shanmugam Boomadevi ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Electric Field ◽  
Far Field ◽  
Internal Electric Field ◽  
Periodically Poled ◽  
Lithium Niobate Crystals ◽  
Congruent Lithium Niobate

The Internal Electric Field and Backswitching in Congruent Lithium Niobate

2004 ◽  
Vol 304 (1) ◽  
pp. 105-109
Author(s):  
FARSHAD YAZDANI ◽  
MICHAEL L. SUNDHEIMER ◽  
ANDERSON S. L. GOMES
Keyword(s):  
Lithium Niobate ◽  
Electric Field ◽  
Internal Electric Field ◽  
Congruent Lithium Niobate

Formation of Regular Domain Structures in Quenched Ferroelectrics Under the Influence of an External High-frequency Electric Field

2019 ◽  
Vol 9 (3) ◽  
pp. 344-352 ◽  
Author(s):  
L.I. Stefanovich ◽  
O.Y. Mazur ◽  
V.V. Sobolev
Keyword(s):  
Lithium Niobate ◽  
Electric Field ◽  
Domain Structure ◽  
High Frequency ◽  
Evolution Equations ◽  
Regular Domain ◽  
Field Frequency ◽  
Domain Structures ◽  
Alternating Electric Field ◽  
Lithium Niobate Crystals

Introduction: Within the framework of the phenomenological theory of phase transitions of the second kind of Ginzburg-Landau, the kinetics of ordering of a rapidly quenched highly nonequilibrium domain structure is considered using the lithium tantalate and lithium niobate crystals as an example. Experimental: Using the statistical approach, evolution equations describing the formation of the domain structure under the influence of a high-frequency alternating electric field in the form of a standing wave were obtained. Numerical analysis has shown the possibility of forming thermodynamically stable mono- and polydomain structures. It turned out that the process of relaxation of the system to the state of thermodynamic equilibrium can proceed directly or with the formation of intermediate quasi-stationary polydomain asymmetric phases. Results: It is shown that the formation of Regular Domain Structures (RDS) is of a threshold character and occurs under the influence of an alternating electric field with an amplitude less than the critical value, whose value depends on the field frequency. The conditions for the formation of RDSs with a micrometer spatial scale were determined. Conclusion: As shown by numerical studies, the RDSs obtained retain their stability, i.e. do not disappear even after turning off the external electric field. Qualitative analysis using lithium niobate crystals as an example has shown the possibility of RDSs formation in high-frequency fields with small amplitude under resonance conditions

Preparation and characterization of off‐congruent lithium niobate crystals

1992 ◽  
Vol 71 (2) ◽  
pp. 875-879 ◽  
Author(s):  
P. F. Bordui ◽  
R. G. Norwood ◽  
D. H. Jundt ◽  
M. M. Fejer
Keyword(s):  
Lithium Niobate ◽  
Lithium Niobate Crystals ◽  
Congruent Lithium Niobate

scholarly journals The r22electro-optic coefficients in indium-doped congruent lithium–niobate crystals

2017 ◽  
Vol 879 ◽  
pp. 012005 ◽  
Author(s):  
Mustapha Abarkan ◽  
Anush Danielyan ◽  
Sasha Sewastianow ◽  
Michel Aillerie ◽  
Nicéphore Théofanous ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Lithium Niobate Crystals ◽  
Congruent Lithium Niobate

Investigation of periodically poled lithium niobate crystals by light diffraction

2005 ◽  
Vol 97 (4) ◽  
pp. 044102 ◽  
Author(s):  
M. Müller ◽  
E. Soergel ◽  
K. Buse ◽  
C. Langrock ◽  
M. M. Fejer
Keyword(s):  
Lithium Niobate ◽  
Light Diffraction ◽  
Periodically Poled ◽  
Periodically Poled Lithium Niobate ◽  
Lithium Niobate Crystals
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