Influence of Mg doping on the dielectric properties of MgO-doped lithium niobate

Bai, Wen-Chao; Li, Jiang; Zhang, H.Z.; Ma, Guohong

doi:10.1016/j.physb.2011.01.071

Cited by 10 publications

(5 citation statements)

References 27 publications

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“…For the doped ion of IPPLN, we choose the Mg ion. The Mg ion concentrations of the positive and negative domains in MEEPEM are 0 mol% and 7 mol% [28] (see Figure 1), respectively. From Equations ( 27) and ( 28), the relative dielectric functions ε ra and ε rb of the first-order multi-field coupling polaritons in the MEEPEM are plotted in Figure 2.…”

Section: Resultsmentioning

confidence: 99%

“…[21]: C E 11a = 2.03 × 10 11 N/m 2 , e 22a = 2.50 C/m 2 , ρ a = 4.700 × 10 3 kg/m 3 , and ε S 11a = 44.00. In addition, the proper values of the material parameters of the negative domain in MEEPEM are chosen as follows [28][29][30][31][32]: C E 11b = 3.00 × 10 11 N/m 2 , e 22b = 2.32 C/m 2 , ρ b = 4.630 × 10 3 kg/m 3 , and ε S 11b = 20.00. Other parameters include: the period Λ = 2 ×10 −5 m, the number of the period N = 20, the duty cycle r = a/b = 3, m = 1, r 0 = 2.0×10 −3 m, S 0 = 1.26×10 −5 m 2 , S = 5.00×10 −5 m 2 , the suitable values of the complete elliptic integrals of the first K and second kind E chosen from Refs.…”

Section: Resultsmentioning

confidence: 99%

“…For the unit cell of the periodic arrays of conducting wires, the average macroscopic electric field is approximately equal to the local field in the long-wavelength approximation. Taking into account Equations ( 27) and (28), and the effective dielectric permittivity of conducting wires [2], the expression for the relative dielectric function of the positive and negative domains of MEEPEM can be written as…”

Section: Dielectric Functions Reflection Coefficients and Effective M...mentioning

confidence: 99%

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Transmission Properties of Electromagnetic Waves in Magneto-Electro-Elastic Piezoelectric Electromagnetic Metamaterials

Bai

Zhou

et al. 2022

Symmetry

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We designed magneto-electro-elastic piezoelectric, electromagnetic (EM) metamaterials (MEEPEM) by using a square lattice of the periodic arrays of conducting wires, piezoelectric photonic crystal (PPC), and split-ring resonators (SRRs). We analyzed the mechanism for multi-field coupling in MEEPEM. The magnetic field of the EM wave excites an attractive Ampère force in SRRs, which periodically compress MEEPEM, and this can create electric polarization due to the piezoelectric effect. The electric field of the EM wave can excite a longitudinal superlattice vibration in the PPC, which can also create electric polarization. The electric polarization can couple to the electric field of the periodic arrays of conducting wires. The coupled electric field will couple to the EM wave. These interactions result in multi-field coupling in MEEPEM. The coupling creates a type of polariton, called multi-field coupling polaritons, corresponding to a photonic band gap, namely, the multi-field coupling photonic band gap. We calculated the dielectric functions, the reflection coefficients, and the effective magnetic permeability of MEEPEM. By using them, we analyzed the transmission properties of EM waves in the MEEPEM. We analyzed the possibility of MEEPEM as left-handed metamaterials and zero refractive index material.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Dielectric Functions Reflection Coefficients and Effective M...mentioning

confidence: 99%

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Transmission Properties of Electromagnetic Waves in Magneto-Electro-Elastic Piezoelectric Electromagnetic Metamaterials

Bai

Zhou

et al. 2022

Symmetry

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“…[31]: C E 11a = 2.03 × 10 11 N/m 2 , e 22a = 2.50 C/m 2 , ρ a = 4.700 × 10 3 kg/m 3 , ε S 11a = 44.00. The proper values of the material parameters of the negative domain in the MPPC are chosen as follows [26,27,[36][37][38]: As shown in Figure 4, corresponding to the resonance frequencies of elastic anomalies (see Figure 3), there are two frequency regions (𝜔 , 𝜔 ) and (𝜔 , 𝜔 ) of transmission coefficient t = 0 in the transmission spectrum of the MPPC, here 𝜔 = 4.56 × 10 7 Hz, and 𝜔 = 4.36 × 10 7 Hz. In the two frequency regions, longitudinal waves are forbidden to propagate through MPPC along x-axis.…”

Section: Resultsmentioning

confidence: 99%

Theoretical Investigation of Magneto-Electro-Elastic Piezoelectric Phononic Crystal

et al. 2022

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We design a magneto-electro-elastic piezoelectric phononic crystal (MPPC) using a one-dimensional piezoelectric superlattice (with a 3m point group) and split-ring resonators. The effect of the split-ring resonators is to enhance the piezoelectric effect of the piezoelectric superlattices. This effect will create elastic anomalies and generate the phononic band gaps. These are first proposed theoretically. We calculate the transmission function of the MPPC through Transfer Matrix Method of the phononic crystal. By using the transmission function, we theoretically study the propagation properties of the acoustic waves in the MPPC. The mechanism for multifield coupling is analyzed. A type of phononic band gap is created, called the multifield coupling phononic band gap. We analyze the possibility of crystals as left-handed metamaterials. We also discuss some potential applications.

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“…In contrast, our preliminary tests of the stoichiometric crystals indicated that the material is stable up to at least 900 °C [11]. The LiNbO 3 crystal is a very good piezoelectric transducer material, ferroelectric material, and electro-optic material [12]. The electrical and electromechanical behaviors of LiNbO 3 as a function of crystal composition, temperature, and oxygen partial pressure have been investigated [13].…”

Section: Introductionmentioning

confidence: 99%

Development of a Wireless Mesh Sensing System with High-Sensitivity LiNbO3 Vibration Sensors for Robotic Arm Monitoring

Lin

Jen

et al. 2019

Sensors

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In recent years, multi-axis robots are indispensable in automated factories due to the rapid development of Industry 4.0. Many related processes were required to have the increasing demand for accuracy, reproducibility, and abnormal detection. The monitoring function and immediate feedback for correction is more and more important. This present study integrated a highly sensitive lithium niobate (LiNbO3) vibration sensor as a sensor node (SN) and architecture of wireless mesh network (WMN) to develop a monitoring system (MS) for the robotic arm. The advantages of the thin-film LiNbO3 piezoelectric sensor were low-cost, high-sensitivity and good electrical compatibility. The experimental results obtained from the vibration platform show that the sensitivity achieved 50 mV/g and the reaction time within 1 ms. The results of on-site testing indicated that the SN could be configured on the relevant equipment quickly and detect the abnormal vibration in specific equipment effectively. Each SN could be used more than 10 h at the 80 Hz transmission rate under WMN architecture and the loss rate of transmission was less than 0.01% within 20 m.

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Influence of Mg doping on the dielectric properties of MgO-doped lithium niobate

Cited by 10 publications

References 27 publications

Transmission Properties of Electromagnetic Waves in Magneto-Electro-Elastic Piezoelectric Electromagnetic Metamaterials

Transmission Properties of Electromagnetic Waves in Magneto-Electro-Elastic Piezoelectric Electromagnetic Metamaterials

Theoretical Investigation of Magneto-Electro-Elastic Piezoelectric Phononic Crystal

Development of a Wireless Mesh Sensing System with High-Sensitivity LiNbO3 Vibration Sensors for Robotic Arm Monitoring

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