Light deflection from ferroelectric domain boundaries

Müller, Manfred; Soergel, E.; Wengler, Marc; Buse, K.

doi:10.1007/s00340-003-1374-5

Cited by 29 publications

(17 citation statements)

References 16 publications

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“…The poling setup is similar to the one used to investigate light deflection from ferroelectric domain boundaries. 18 The samples used in this experiment consisted of both the congruent and stoichiometric composition, which were purchased from MTI Corporation and Deltronic Crystal Industries, respectively. The crystals were diced from a z-cut wafer and had the final dimensions 10 mm × 10 mm × 0.5 mm.…”

Section: Experimental Methodsmentioning

confidence: 99%

Frequency shift of Raman modes due to an applied electric field and domain inversion in LiNbO3

et al. 2011

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We report changes in the frequency of Raman modes in lithium niobate that are observed under the application of external applied electric fields and after domain inversion. Inspection of the Raman peaks reveals that after domain inversion, the internal field of the crystal is reduced. A comparison of the respective frequency shifts for the different Raman modes indicates that this change in the local internal field is not limited to the ferroelectric axis, but the fields orthogonal to the ferroelectric axis also change. The Raman modes also reveal that the strength of the internal field is dependent on the concentration of intrinsic defects present in the crystal.

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Section: Experimental Methodsmentioning

confidence: 99%

Frequency shift of Raman modes due to an applied electric field and domain inversion in LiNbO3

et al. 2011

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“…Figure 3 shows the calculated penetrating distance q as a function of applied voltage according to Eq. (14). Since the thickness of each domain layer in our PPLN EO Bragg grating is 10 μm, it is interesting to examine the situation when the q value of the evanescent field is smaller than 10 μm.…”

Section: Other Electro-optically Induced Effectsmentioning

confidence: 99%

“…5(a) and 5(b) represent the calculation results based on PPLN whose grating structure is assumed to be formed by a square-wave and a cosinusoidal-wave shape grating, respectively. Here, a cosinusoidal-wave shape grating is included in the calculation in that it has been shown that the refractive index across the boundary of opposite polarity domains in LiNbO 3 under the EO effect could be changing continuously instead of a stepwise change (as seen from the PPLN domain shape) [14]. We have shifted the calculation results (and all of the following calculation results made in this work) by 10 V to take into account the internal-field effect mentioned above before comparing them with the experimental results.…”

Section: Experimental Characterization Theoretical Simulation and Rmentioning

confidence: 99%

Characterization and analysis of finite-beam Bragg diffraction in a periodically poled lithium niobate electro-optic grating

et al. 2014

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We report the study, both theoretical and experimental, of the finite-beam Bragg diffraction behavior of an electro-optic (EO) volume grating made of a periodically poled lithium niobate (PPLN) crystal. When a Gaussian laser beam is used, the experimental observations show that the diffraction characteristics of the PPLN EO Bragg device, including the diffraction mode pattern and diffraction efficiency, are closely related to the interaction beam size and applied voltage, which cannot be modeled properly by a simplified theory using the plane-wave approximation. In this work, we have developed a theoretical model for describing the diffraction behavior of a PPLN EO Bragg device based on the coupled-wave theory with the aid of the plane-wave decomposition method. Specifically, we found that it is the angular distribution (or the dephasing bandwidth) of the plane wave elements decomposed from the incident Gaussian beam and grating strength that determine the Bragg coupling behavior of the device. We also identified some other electro-optically induced effects in the PPLN grating as an important mechanism in affecting the diffraction performance of the present device, especially at high working voltages.

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“…It has been shown that far-field diffraction patterns on the domain structure in LN and LT consist of rays normal to the domain walls thus allowing to obtain the predominant wall orientations [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The switching current data can be easily recorded with high temporal resolution, but its further analysis is very complicated and does not allow obtaining the information about given scenario of the domain structure evolution. Recently, the registration of light diffracted on the domain structures after propagation through the crystal parallel to polar axis was proposed as useful method for in situ study of domain kinetics in lithium niobate LiNbO 3 (LN) and lithium tantalate LiTaO 3 (LT) [5][6][7][8]. This method is based on the phase shift of passing coherent light in opposite domains due to electrooptic and inverse piezoelectric effects under application of electric field.…”

Section: Introductionmentioning

confidence: 99%

Study of Field-Induced Evolution of the Domain Geometry in Lithium Niobate and Lithium Tantalate Single Crystals by In Situ Optical Method

Shur¹,

Батурин²,

Nebogatikov³

et al. 2008

Ferroelectrics

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The registration of light diffraction on domain structure was applied for studying the domain structure evolution during polarization reversal in single crystals of different representatives of lithium niobate LiNbO 3 and lithium tantalate LiTaO 3 family. The evolution of the angular dependence of diffracted light intensity during polarization reversal was used for characterization of the domain structure kinetics. Comparison of the angular dependences with corresponding instantaneous domain patterns allows to propose the interpretation of the domain structure evolution. Spatial filtration of the diffracted beam allowed to separate the relative input of domain walls of different orientations with high temporal resolution.

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Light deflection from ferroelectric domain boundaries

Cited by 29 publications

References 16 publications

Frequency shift of Raman modes due to an applied electric field and domain inversion in LiNbO3

Frequency shift of Raman modes due to an applied electric field and domain inversion in LiNbO3

Characterization and analysis of finite-beam Bragg diffraction in a periodically poled lithium niobate electro-optic grating

Study of Field-Induced Evolution of the Domain Geometry in Lithium Niobate and Lithium Tantalate Single Crystals by In Situ Optical Method

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