Gotowe bibliografie tematyczne / CW Z-scan

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Gotowa bibliografia na temat „CW Z-scan”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "CW Z-scan"

Johan, Sebastián-Díaz Tovar, Valbuena-Duarte Sonia, and Racedo-Niebles Francisco. "Study of non-linear optical properties in automobile lubricating oil via Z-Scan technique." Revista Facultad de Ingeniería -redin-, no. 86 (March 27, 2018): 27–31. https://doi.org/10.17533/udea.redin.n86a04.

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Non-linear optical properties were obtained as a function of laser power for the 20W-50 multi-grade oil for engines. These properties were obtained by using the Z-scan technique for transmission in closed and open cell configurations. A Nd:YAG laser operating in continuous wave (CW) was used, emitting in 532 nm and regulated in electric current. To control the technique, an interface in LabVIEW was implemented, which allows monitoring real-time during the measurement process. The values of the non-linear absorption coefficient (β), non-linear refractive index (n2), and

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Sarkhosh, Leila, and Nastaran Mansour. "Analysis of Z-scan measurement for large thermal nonlinear refraction in gold nanoparticle colloid." Journal of Nonlinear Optical Physics & Materials 24, no. 02 (2015): 1550014. http://dx.doi.org/10.1142/s0218863515500149.

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In this work, based on nonlocal heat effect and Fresnel diffraction theory, the characteristics of closed Z-scan in materials with a large nonlinear phase shift have been studied and a formula for Z-scan transmittance is derived. Numerical computations show that the shapes of Z-scan curves are greatly affected by the values of thermal nonlinear phase shift. The Z-scan behavior is compared to the conventional thermal Z-scan theories, including the thermal thin lens and aberrant thermal lens model. We have used the Z-scan models to determine the nonlinear refraction of gold nanoparticle (AuNP) d

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Zanuto, V. S., J. F. M. dos Santos, M. L. Baesso, and T. Catunda. "Single-beam time-resolved cw thermal Z-scan analysis applied in solids." Optics & Laser Technology 142 (October 2021): 107248. http://dx.doi.org/10.1016/j.optlastec.2021.107248.

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Ba, Oumar, Mihaela Chis, Christophe Cassagne, and Georges Boudebs. "Phase shift imaging in thin films using CW Z-scan based technique." Physica B: Condensed Matter 603 (February 2021): 412608. http://dx.doi.org/10.1016/j.physb.2020.412608.

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Journal, Baghdad Science. "Study of Nonlinear Refraction and Nonlinear Absorption Coefficients of Different CdS Film Thickness by diode laser." Baghdad Science Journal 10, no. 1 (2013): 217–25. http://dx.doi.org/10.21123/bsj.10.1.217-225.

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In the present work, different thicknesses of CdS film were prepared by chemical bath deposition. Z-Scan technique was used to study the nonlinear refractive index and nonlinear absorption coefficients. Linear optical testing were done such as transmission test, and thickness of films were done by the interference fringes (Michelson interferometer). Z-scan experiment was performed at 650nm using CW diode laser and at 532nm wavelength. The results show the effect of self-focusing and defocusing that corresponds with nonlinear refraction n2. The effect of two-photon absorption was also studied,

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ZHANG, XIAOQIANG, CHANGSHUN WANG, YI ZENG, and JINWEN ZHANG. "NONLINEAR REFRACTION AND PHOTOINDUCED BIREFRINGENCE IN THE METHYL-RED-DOPED POLYMER THIN FILM." Journal of Nonlinear Optical Physics & Materials 19, no. 03 (2010): 437–44. http://dx.doi.org/10.1142/s0218863510005364.

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Single beam Z-scan measurement has shown that the methyl-red-doped PVA thin film possesses a large nonlinear refractive index: n2 ( cm 2/ W ) = -2.29 × 10-4 cm 2/ W and n2 ( cm 2/ W ) = -8.75 × 10-5 cm 2/ W for the CW 532 nm linear polarization light and circular polarization light, respectively. The mechanism for the process of nonlinear refraction is discussed in terms of the photoisomerization of MR molecules. Moreover, photoinduced birefringence with values on the order of 10-4 has been observed when investigating the photoinduced birefringence of the thin film with a CW 532 nm laser as th

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Tarek, S. A., S. B. Faruque, S. M. Sharafuddin, et al. "Linear and thermo-optically generated nonlinear optical response of bovine serum albumin and its constituent amino acids in continuous wave z-scan." AIP Advances 13, no. 3 (2023): 035315. http://dx.doi.org/10.1063/5.0135447.

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Proteins are large biomolecules in the form of polypeptide chains consisting of amino acid (AA) residues. Ultraviolet–visible absorption spectroscopy and continuous wave (CW) z-scan of bovine serum albumin (BSA) and some of its constituent AAs were examined to deduce the relationship between the optical properties of this protein molecule and its constituents. From the analysis of their optical spectra, the absorption at 278 nm by BSA is found to be the outcome of the cumulative effects of the absorptions by constituent aromatic AA residues, cysteine disulfide bonds, and methionine. Similarly,

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Cassagne, Christophe, Oumar Ba, and Georges Boudebs. "Time-Resolved cw Thermal Z-scan for Nanoparticles Scattering Evaluation in Liquid Suspension." Materials 15, no. 14 (2022): 5008. http://dx.doi.org/10.3390/ma15145008.

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The thermal lens effect is analyzed as a time-resolved Z-scan measurement using cw-single Gaussian beam configuration. The main characteristics of the measurement method are determined. We focus on the evaluation of the measurement error from statistical calculations to also check the linearity of the response and the way to extract the thermo-optical characteristics of absorbing liquids. The results are also applied to demonstrate the feasibility of absorption and scattering efficiencies determination on gold nanoparticles of 5 and 50 nm diameters.

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Martínez Irivas, Beatriz Adriana, Emma Vianey García Ramírez, Doralycia Carranza Zuñiga, Athziri Zúniga Méndez, and Raúl Ochoa Valiente. "Medición de parámetros característicos de un láser continúo CW." Ciencia Latina Revista Científica Multidisciplinar 9, no. 1 (2025): 3510–22. https://doi.org/10.37811/cl_rcm.v9i1.16097.

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Actualmente, el láser (pulsado o continuo) es usado en diferentes investigaciones desde la explicación en ciencia básica hasta su uso en ciencia de frontera en nuevas tecnologías. Por esta razón se requiere caracterizarlos para conocer sus parámetros y sus especificaciones aplicando diferentes técnicas de caracterización del haz láser. En este trabajo se presentan resultados experimentales de parámetros característicos, de un haz Gaussiano de un haz láser continuo de iones de Argón de longitud de onda 514 nm, tales como: ancho del haz W(z), cintura del haz W0 y la distancia de Rayleigh z0, est

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Aithal, Shubrajyotsna, P. S. Aithal, and G. K. Bhat. "CW Optical Limiting Study in Disperse Yellow Dye-doped PMMA-MA Polymer Films." IRA-International Journal of Applied Sciences (ISSN 2455-4499) 5, no. 3 (2016): 129. http://dx.doi.org/10.21013/jas.v5.n3.p4.

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<div>Molecules with high two-photon absorption (TPA) cross section and the molecules which have reverse saturation absorption (RSA) cross section are of great interest today because of their application in three-dimensional optical data storage and photonic switches. During last forty years, several techniques have been developed to determine the two-photon absorption cross-sections and reverse saturation absorption cross-sections of the materials. This includes direct methods, such as nonlinear transmission and Z-scan methods and indirect methods, such as two-photon e

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Streszczenia konferencji na temat "CW Z-scan"

Mejía-Vega, O. A., M. O. Chacón-Carrero, M. Trejo-Durán, M. Cano-Lara, and E. Alvarado-Méndez. "Self-diffraction rings in organic materials with Gelite Bloom and Hibiscus Sabdariffa." In Frontiers in Optics. Optica Publishing Group, 2024. https://doi.org/10.1364/fio.2024.jd4a.97.

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An experimental and numerical study of the nonlinear optical properties of hibiscus sabdariffa in gelite bloom is shown. Using the Z-scan technique and a λ = 477 nm cw variable power Ar laser, nonlinear absorption was measured, which is the main contribution to the nonlinear refractive index. Hibiscus sabdariffa presents large phase changes at low powers, which causes spatial self-phase modulation (SSPM) effects. Our experimental results show a high agreement with the numerical model of thermal lens formation used.

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Rativa, Diego, C. E. Estupiñan Lopez, C. Tolentino Dominguez, and R. E. de Araujo. "Thermally managed pump-probe Z-scan using CW lasers." In Nonlinear Optics. OSA, 2013. http://dx.doi.org/10.1364/nlo.2013.nw4a.31.

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Peters, Ole, Kai Baaske, Norman Krumbholz, Thorsten Probst, and Martin Koch. "Z-scan based fiber-coupled coherent cw THz imaging system." In 2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IORMMW-THz 2009). IEEE, 2009. http://dx.doi.org/10.1109/icimw.2009.5324697.

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Sohn, Yeung Joon, Chong Hoon Kwak, and Ok Shik Choe. "Z-Scan Measurement in Amorphous As2S3 Thin Film." In Diffractive Optics and Micro-Optics. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/domo.1996.jtub.20.

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Z-scan technique is very useful method for measuring the magnitude and the sign of the nonlinear refractive index due to its simple geometry and high sensitivity compared with nonlinear interferometry, degenerate four-wave mixing, nearly degenerate three-wave mixing, ellipse rotation, beam distortion measurement.[1, 2] With this technique the measurements and analysis for several nonlinear optical materials such as CS2, ZnSe, GaAs, CdTe had been succesfully acomplished by using high power pulse laser.[1-3] In this paper, we present a cw pump-probe z-scan method for determining the optical nonl

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Boudebs, Georges, Julien-Bilal Zinoune, Christophe Cassagne, Mathieu Loumaigne, Mihaela Chis, and Martinus H. V. Werts. "Photothermal Efficiency of Gold Nanoparticles Using CW Z-Scan Technique in the Visible Range." In 2023 23rd International Conference on Transparent Optical Networks (ICTON). IEEE, 2023. http://dx.doi.org/10.1109/icton59386.2023.10207301.

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Majles Ara, M. H., Z. Dehghani, E. Saievar Iranizad, and S. Salmani. "Nonlinear Responses and Optical Limiting Behavior of Ag Nano-Particles." In 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2008. http://dx.doi.org/10.1115/micronano2008-70174.

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Ag nano-particles have been synthesized and the formation and microstructure of Ag particles, were monitored by X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-Visible spectrum and z-scan technique. XRD pattern confirmed the cubic structure of the synthesized material. The UV-Visible spectrum of this material shows an absorption peak about 200 nm wavelengths. Optical limiting (OL) property of Ag nano-particles is studied. The nonlinear refractive indices of Ag nano-particles were defined by the z-scan technique using CW He-Ne laser (λ = 632.8 nm) at different incident intensiti

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Yan, Jinhua, Jie Lyu, Hang Zhang, and Cheng Cheng. "The thermo-optic characteristics of CdSe/ZnS quantum dot with Z-scan measurement method using a CW laser." In Applied Optics and Photonics China (AOPC2015), edited by Lin Li, Minghui Hong, and Lan Jiang. SPIE, 2015. http://dx.doi.org/10.1117/12.2203001.

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Wherrett, B. S., J. Bolger, A. K. Kar, et al. "Picosecond Nonlinear Optics of and Stimulated Emission from n- and p-type MBE ZnSe." In Nonlinear Optics. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/nlo.1992.mc4.

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An explosion of interest in ZnSe based optoelectronic devices has followed the reports of diode laser action associated with this material [1,2]. We have, over a period of years, been investigating the nonlinear optical properties of bulk and thin-film ZnSe, initially with concern for all-optical switches and logic elements employing either optothermal or optoelectronic mechanisms. Degenerate-four-wave-mixing, nonlinear Fabry-Perot and z-scan techniques have been employed to measure the absorption cross-sections and induced refractive indices at cw, nanosecond and subpicosecond timescales, wit

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Nayak, Sudhanshu Kumar, Md Soif Ahmed, Chinmay Barman, et al. "Nonlinear Coherent Light-matter Interaction: Promising all-Optical Switching, Logic Gate and Optical Limiting Applications." In JSAP-Optica Joint Symposia. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/jsapo.2023.21a_p01_6.

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Spatial self-phase modulation (SSPM) is a nonlinear optical (NLO) coherent interaction between light and matters. The phase gets self-modulated due to the change of nonlinear refractive index through the nonlinear Kerr effect and produce diffraction rings at the far fields. [1] Porphyrins are the organic molecules with π-conjugation electron rich systems, they possess delocalized electric field distribution and large dipole moments that lead to have significant electrical polarization, which is a profit for higher NLO response. These molecules have various application in photovoltaics, photoni

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