Nonlinear Optical Properties of ZnO Thin Film at Low Laser Intensity Using Z-Scan Technique

Sony, Tharaa; Zaker, Thoalfiqar Ali; Zakar, Ammar; Mohammed, Hala Nazar

doi:10.33899/rjs.2021.169975

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…Several reports [ 45 , 46 , 47 , 48 , 49 , 50 , 51 ] employed the Z-scan technique to explore the NLO properties of ZnO thin films. The results revealed that ZnO thin films had reverse saturable absorption (RSA) and a negative nonlinear refractive index.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water

et al. 2022

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The nonlinear optical properties of zinc oxide nanoparticles (ZnONPs) in distilled water were measured using a femtosecond laser and the Z-scan technique. The ZnONPs colloids were created by the ablation of zinc bulk in distilled water with a 532 nm Nd: YAG laser. Transmission electron microscopy, an ultraviolet-visible spectrophotometer, and atomic absorption spectrophotometry were used to determine the size, shape, absorption spectra, and concentration of the ZnONPs colloids. The nonlinear absorption coefficient and nonlinear refractive index were measured at different excitation wavelengths and intensities. The nonlinear absorption coefficient of the ZnONPs colloids was found to be positive, caused by reverse saturable absorption, whereas the nonlinear refractive index was found to be negative due to self-defocusing in the ZnONPs. Both laser parameters, such as excitation wavelength and input intensity, and nanoparticle features, such as concentration and size, were found to influence the nonlinear optical properties of the ZnONPs.

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Section: Introductionmentioning

confidence: 99%

Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water

et al. 2022

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“…Comparable works have reported NLO parameters in ZnO thin films by RF magnetron spu ering, whose thicknesses were 500 and 1200 nm with reported values of = 4.74 × 10 cm/W and = 2.59 × 10 cm/W, respectively [33]. Also, a ZnO thin film sample with a thickness of 425 nm synthesized by atmospheric pressure chemical vapor deposition (APCVD) was used in z-scan measurements to observe the influence of different irradiances ranging from 166 to 218 W/cm 2 [34]. The results indicated a notable difference with variable irradiance, with values ranging from 9.2039 to 10.5511 cm/ The contrast in the n 2 sign can be explained considering a different physical energy transfer mechanism generated by multiphoton processes under thermal and electronic optical effects.…”

Section: Nonlinear Z-scan Measurements Resultsmentioning

confidence: 99%

Dual-Criteria Decision Analysis by Multiphotonic Effects in Nanostructured ZnO

Garcia-de-los-Rios,

Arano-Martinez,

Trejo-Valdez

et al. 2024

Micromachines

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Simultaneous interrogation of pump and probe beams interacting in ZnO nanostructures of a two-wave mixing is proposed for dual-path data processing of optical signals by nonlinear optical effects. An enhancement in third-order nonlinear optical properties was exhibited by Al-doped ZnO thin films. Multiphoton absorption and nonlinear refraction were explored by the z-scan technique at 532 nm with nanosecond pulses. The evolution of the optical Kerr effect in the ZnO thin films was analyzed as a function of the incorporation of Al in the sample by a vectorial two-wave mixing method. Electrical and photoconductive effects were evaluated to further characterize the influence of Al in the ZnO solid samples. Potential applications of nonlinear optical parameters for encoding and encrypting information in light can be envisioned.

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“…The z-scan results indicate a positive nonlinear refractive index in the nanosecond regime. The sign in the nonlinear refractive index might vary depending on many factors responsible for the physical mechanisms of nonlinearity [42], material thickness, incident irradiance, and different preparation techniques, like RF magnetron sputtering [43] or chemical vapor deposition [44]. Also, previous works have reported that the crystallization form of the ZnO could have influenced its optical and NLO response.…”

Section: Results Of the Z-scan Analysismentioning

confidence: 99%

Fractional Photoconduction and Nonlinear Optical Behavior in ZnO Micro and Nanostructures

Garcia-de-los-Rios,

Arano-Martínez,

Trejo-Valdez

et al. 2023

Fractal Fract

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A fractional description for the optically induced mechanisms responsible for conductivity and multiphotonic effects in ZnO nanomaterials is studied here. Photoconductive, electrical, and nonlinear optical phenomena exhibited by pure micro and nanostructured ZnO samples were analyzed. A hydrothermal approach was used to synthetize ZnO micro-sized crystals, while a spray pyrolysis technique was employed to prepare ZnO nanostructures. A contrast in the fractional electrical behavior and photoconductivity was identified for the samples studied. A positive nonlinear refractive index was measured on the nanoscale sample using the z-scan technique, which endows it with a dominant real part for the third-order optical nonlinearity. The absence of nonlinear optical absorption, along with a strong optical Kerr effect in the ZnO nanostructures, shows favorable perspectives for their potential use in the development of all-optical switching devices. Fractional models for predicting electronic and nonlinear interactions in nanosystems could pave the way for the development of optoelectronic circuits and ultrafast functions controlled by ZnO photo technology.

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Nonlinear Optical Properties of ZnO Thin Film at Low Laser Intensity Using Z-Scan Technique

Cited by 3 publications

References 7 publications

Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water

Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water

Dual-Criteria Decision Analysis by Multiphotonic Effects in Nanostructured ZnO

Fractional Photoconduction and Nonlinear Optical Behavior in ZnO Micro and Nanostructures

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