Preparation and charactrization of photonic LiNbO3 generated from mixing of new raw materials using spry pyrolysis method

Fakhri, Makram A.; Hashim, U.; Salim, Evan T.; Salim, Zaid T.

doi:10.1007/s10854-016-5455-8

Cited by 35 publications

(12 citation statements)

References 36 publications

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“…5(a) and 5(b), respectively. At a low Si WG thickness (0.43 µm) of the fabricated MZM-LN, the TE mode is outside the WG geometry due to a high attenuation coe cient [24]. The high-order mode attained in the fabricated MZM-LN could be due to the newly applied refractive index (3.6111), which is higher than that applied in the simulated MZM-LN (3.48).…”

Section: Resultsmentioning

confidence: 90%

“…The optical properties of the deposited lms are investigated in the ultraviolet to near-IR wavelength to nd the optical re ection of the deposited lms by using (double-beam UV-vis) spectrophotometer of (Shimadzu UV-vis 1800, Japan) type. The refractive index (n) of the deposited materials was calculated using a developed equation [23,24].…”

Section: Optical Constant Estimationmentioning

confidence: 99%

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Design And Optimization of Integrated Mach_ Zehnder Modulators In X-Cut Lithium Niobate Thin Film

Mohammed¹,

Fakhri²,

Abass³

et al. 2021

Preprint

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The Mach-Zehnder electro-optic modulator (MZM) was designed and fabricated using the AFM COMSOL program and the pulse laser deposition (PLD) technique. The PLD technique was used to deposit silicon, silicon oxide and LN thin film. Previously estimated optical properties of the prepared films were employed in the theoretical design of the modulator. Optimum device parameters were obtained, which delivered a considerable figure of merit (Vπ.L) values within the range of 2.12 to 2.25 at a device length of 2 cm.

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Section: Resultsmentioning

confidence: 90%

Section: Optical Constant Estimationmentioning

confidence: 99%

Design And Optimization of Integrated Mach_ Zehnder Modulators In X-Cut Lithium Niobate Thin Film

Mohammed¹,

Fakhri²,

Abass³

et al. 2021

Preprint

Self Cite

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show abstract

“…where D is grain size in (nm), K is constant depended on the used X-Ray wave length, β is the full width at half maximum, Ɵ is the diffracted angle, δ is the density of dislocation which refers to the number of dislocations in a unit volume of a crystalline material and ε is the stress [23][24][25][26][27][28][29][30].…”

Section: Structural Studiesmentioning

confidence: 99%

Niobium Pentoxide thin films employ simple colloidal suspension at low preparation temperature

et al. 2017

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Abstract. In this work a nano-colloidal suspension is used to prepare Nb 2 O 5 thin films. The effect of different substrates on structural properties of niobium pentoxide thin film deposited by spin coating technique on silicon and quartz substrates are presented. We observed that the obtained structure is monocline in both substrates. The diffraction peaks in both substrates ensured the successful formation of Nb 2 O 5 thin films with a clear polymorphous structure. However, the structure became more crystalline with additional distinguished peaks on silicon substrate comparing to quartz substrate. The extracted structural parameters from X-Ray diffraction show that the grain size of the thin films on quartz is smaller than silicon with the values of 16.47 nm and 20.98 nm respectively. The stress measurement records the values of 0.19 and 0.00719 for the thin films deposited on silicon and quartz substrates respectively. Effects of film thickness depicted increment in the absorbance and reduction in the band gap. Energy gaps of 2.7, 2.58 and, 2.5 eV are measured as a result of increasing the film thicknesses of 325, 420 and 450 nm respectively.

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“…On the one hand, the synthesis of the MgO nanocomposite gets received widespread attention, like CuO-MgO nanocomposites (prepared by a solvothermal procedure for catalytic applications) [24,25], Y 2 O 3 -MgO nanocomposite (by ceramics powder sintering) [26], CdO-MgO (microwave-assisted method) [27][28][29], MgO-Fe 2 O 3 nanocomposite (was prepared via a simple precipitation route) [30,31], ZnO-MgO (formed by the sol-gel method) [29,30], Ag 2 S-MgO/graphene (was prepared via solgel/ultrasound method) [32,33] Al 2 O 3 -MgO (synthesized by a sol-gel process) [34], CaCO 3 -MgO (synthesized MgO nanoparticle-coated eggshell particles (defined as CaCO 3 /MgO nanocomposites) and subsequently manufactured a biomimetic active scaffold via the chemical crosslinking) [35]. Y 2 O 3 -MgO (colloidal technique and SPS spark-plasmasintering (SPS) techniques.)…”

Section: Introductionmentioning

confidence: 99%

Preparation of MgO–MnO2 nanocomposite particles for cholesterol sensors

Abdul-Hamead

Othman

Fakhri

2021

J Mater Sci: Mater Electron

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Various nanoparticles have been developed for bio-applications. However, nanocomposites particles, (NCPs) with effective and ability to sensing cholesterol, are still needed. Herein, we present new cholesterol and pH-responsive NCPs as sensor particles to promote sensitivity. The traditional method of mixing and grinding was used to fabricate the oxides of magnesium and manganese MgO–MnO 2 NCPs with different mixing ratios. Structural properties, detection of cholesterol, and pH sensitivity were examined. Results propped the high efficiency of MgO–MnO 2 NCPs compared with individual oxides (MgO and MnO 2 ), low response time, while the analytical results confirmed the homogeneous structure of MgO–MnO 2 NCPs. Particle size distribution results for NCPs were within 16.4 to 100 nm, which makes it promising in medical and bio-applications.

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Preparation and charactrization of photonic LiNbO3 generated from mixing of new raw materials using spry pyrolysis method

Cited by 35 publications

References 36 publications

Design And Optimization of Integrated Mach_ Zehnder Modulators In X-Cut Lithium Niobate Thin Film

Design And Optimization of Integrated Mach_ Zehnder Modulators In X-Cut Lithium Niobate Thin Film

Niobium Pentoxide thin films employ simple colloidal suspension at low preparation temperature

Preparation of MgO–MnO2 nanocomposite particles for cholesterol sensors

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