Academic literature on the topic 'Modelo Lorentz-Drude'

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Journal articles on the topic "Modelo Lorentz-Drude"

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Dadrasnia, E., H. Lamela, M. B. Kuppam, F. Garet, and J. L. Coutaz. "Determination of the DC Electrical Conductivity of Multiwalled Carbon Nanotube Films and Graphene Layers from Noncontact Time-Domain Terahertz Measurements." Advances in Condensed Matter Physics 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/370619.

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Measuring the DC conductivity of very thin films could be rather difficult because of the electrical contact issue. This DC conductivity can, however, be extracted from noncontact measurements at GHz and THz frequencies using elaborated conductivity models that nicely fit the experimental data. Here we employ this technique to study the DC conductivity of fragile nanometer-thick films of multiwalled carbon nanotubes and monolayer graphene. The THz response of the films is measured by THz time-domain spectroscopy. We show that the THz conductivity of the samples is well fitted by either Drude-L
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Choi, Hongjin, Jeahoon Cho, Yong Bae Park, and Kyung-Young Jung. "Newmark-FDTD Formulation for Modified Lorentz Dispersive Medium and Its Equivalence to Auxiliary Differential Equation-FDTD with Bilinear Transformation." International Journal of Antennas and Propagation 2019 (June 20, 2019): 1–7. http://dx.doi.org/10.1155/2019/4173017.

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The finite-difference time-domain (FDTD) method has been popularly utilized to analyze the electromagnetic (EM) wave propagation in dispersive media. Various dispersion models were introduced to consider the frequency-dependent permittivity, including Debye, Drude, Lorentz, quadratic complex rational function, complex-conjugate pole-residue, and critical point models. The Newmark-FDTD method was recently proposed for the EM analysis of dispersive media and it was shown that the proposed Newmark-FDTD method can give higher stability and better accuracy compared to the conventional auxiliary dif
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AZARI, ARASH, and MIRFAEZ MIRI. "LATERAL CASIMIR FORCE BETWEEN DEEPLY CORRUGATED DIELECTRIC AND METALLIC PLATES." International Journal of Modern Physics B 26, no. 04 (2012): 1250026. http://dx.doi.org/10.1142/s0217979212500269.

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We study the lateral Casimir force between corrugated dielectric plates. We use the dielectric contrast perturbation theory [R. Golestanian, Phys. Rev. Lett.95, 230601, (2005)], which allows us to consider arbitrary deformations with large amplitudes. We consider sinusoidal, rectangular, and sawtooth corrugations, for samples made of silicon and gold. We use the plasma and Drude–Lorentz models for the permittivity of gold and silicon, respectively. For these geometries and materials, the lateral Casimir force is not a sinusoidal function of the relative lateral displacement of plates when the
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Gharbi, Tasnim, Dominique Barchiesi, Sameh Kessentini, and Ramzi Maalej. "Fitting optical properties of metals by Drude-Lorentz and partial-fraction models in the [05;6] eV range." Optical Materials Express 10, no. 5 (2020): 1129. http://dx.doi.org/10.1364/ome.388060.

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Vargas, William E. "Dielectric functions of Pd and Zr transition metals: an application of Drude–Lorentz models with simulated annealing optimization." Applied Optics 56, no. 4 (2017): 1266. http://dx.doi.org/10.1364/ao.56.001266.

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Hebb, J. P., E. G. Cravalho, and M. I. Flik. "Thermal Radiation Absorption in Doped Semiconductors Due to Direct Intersubband Transitions." Journal of Heat Transfer 117, no. 4 (1995): 948–54. http://dx.doi.org/10.1115/1.2836315.

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This work proposes an engineering model for thermal radiation absorption due to direct intersubband transitions in doped semiconductors, which are excitations of bound electrons in the infrared spectral region. An existing quantum-mechanical approach is to model these transitions as a continuum of damped harmonic oscillators. This study modifies this approach to yield a more effective method for determining the optical constants of doped semiconductors. The room-temperature absorptance spectra of p-type GaAs samples with dopant concentrations from 8 × 1017 to 1 × 1020 cm-3 are measured using a
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Regensburger, Stefan, Mahdad Mohammadi, Arslan A. Khawaja, et al. "Optical Properties of Highly Conductive SrMoO3 Oxide Thin Films in the THz Band and Beyond." Journal of Infrared, Millimeter, and Terahertz Waves 41, no. 10 (2020): 1170–80. http://dx.doi.org/10.1007/s10762-020-00697-z.

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Abstract Strontium molybdate (SrMoO3) thin films are grown epitaxially by pulsed laser deposition onto gadolinium scandate (GdScO3) substrates and characterized in the terahertz (THz) and visible part of the electromagnetic spectrum. X-ray diffraction measurements prove a high crystallinity and phase-pure growth of the thin films. The high-quality SrMoO3 thin films feature a room temperature DC conductivity of around $3{\frac {1}{\mu {\Omega } m}}$ 3 1 μ Ω m . SrMoO3 is characterized in the THz frequency range by time domain spectroscopy. The resulting AC conductivity is in excellent agreement
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Ramadan, Omar. "Unified integro-differential equation for efficient dispersive FDTD simulations." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 36, no. 4 (2017): 1089–105. http://dx.doi.org/10.1108/compel-10-2016-0471.

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Purpose The purpose of this paper is to derive a unified formulation for incorporating different dispersive models into the explicit and implicit finite difference time domain (FDTD) simulations. Design/methodology/approach In this paper, dispersive integro-differential equation (IDE) FDTD formulation is presented. The resultant IDE is written in the discrete time domain by applying the trapezoidal recursive convolution and central finite differences schemes. In addition, unconditionally stable implicit split-step (SS) FDTD implementation is also discussed. Findings It is found that the time s
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Scarinci, Anne L., and Fábio Marineli. "O modelo ondulatório da luz como ferramenta para explicar as causas da cor." Revista Brasileira de Ensino de Física 36, no. 1 (2014). http://dx.doi.org/10.1590/s1806-11172014000100009.

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O presente texto trata dos efeitos da interação luz-matéria que resultam nas cores que enxergamos, assunto que geralmente não é tratado adequadamente em aulas de física. São feitas algumas considerações sobre percepção visual e, em seguida, procuramos nos centrar em explicações para as causas da cor que utilizam o eletromagnetismo clássico (luz como onda eletromagnética) e o modelo de Drude-Lorentz (osciladores moleculares e eletrônicos). Esse modelo subsidia o entendimento dos fenômenos de espalhamento, reflexão, refração e reflexão-refração difusa. Ao final do texto, para efeito de comparaçã
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Di Sia, Paolo. "Overview of Drude-Lorentz type models and their applications." Nanoscale Systems: Mathematical Modeling, Theory and Applications 3, no. 1 (2014). http://dx.doi.org/10.2478/nsmmt-2014-0001.

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Dissertations / Theses on the topic "Modelo Lorentz-Drude"

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Alves, Luiz Antonio. "Propriedades óticas de filmes de nitreto de titânio com adição de nióbio depositados por triodo-magnetron sputtering." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/619.

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Made available in DSpace on 2016-12-08T15:56:18Z (GMT). No. of bitstreams: 1 Luiz Antonio Alves.pdf: 4887074 bytes, checksum: 2921556dad24ae9311fe651e5a0ccdcf (MD5) Previous issue date: 2014-07-14<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Titanium nitride (TiN) films with niobium (Nb) addition (TiN[Nb], 0,01 < Nb/Ti < 0,15) were obtained by sputter deposition in a triode magnetron sputtering system from a mosaic target of titanium with niobium inserts at the erosion zone. The effects of Nb/Ti in surface morphology were analyzed by atomic force and confocal microscop
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SOUZA, Nadson Welkson Pereira de. "Desenvolvimento de um algoritmo computacional MoM 3D aplicado em nanoplasmônica." Universidade Federal do Pará, 2012. http://repositorio.ufpa.br/jspui/handle/2011/3755.

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Submitted by Edisangela Bastos (edisangela@ufpa.br) on 2013-04-24T22:21:51Z No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_DesenvolvimentoAlgoritmoComputacional.pdf: 1177006 bytes, checksum: 819ac77a9d88b4c93e2ba222d3cee8d6 (MD5)<br>Approved for entry into archive by Ana Rosa Silva(arosa@ufpa.br) on 2013-04-29T15:25:07Z (GMT) No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_DesenvolvimentoAlgoritmoComputacional.pdf: 1177006 bytes, checksum: 819ac77a9d88b4c93e2ba222d3cee8
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Hathurusinghe, Dewage Prabuddha Madusanka. "The Application of Two Fluid Model to IR Spectra of Heavy Fermions." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1541588399996827.

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Marasinghe, Mudiyanselage Dinesh Marasinghe. "Drude-Lorentz Analysis of the Optical Properties of the Quasi-Two-Dimensional Dichalcogenides 2H-NbSe2 and 2H-TaSe2." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1533720402564107.

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Cigánek, Jan. "Metoda konečných prvků v časové oblasti a její aplikace." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-233673.

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Disertační práce se zabývá modelováním dispersních materiálů metodou konečných prvků v časové oblasti. V práci jsem navrhl matematický model zahrnující dispersní modely a aplikoval jsem na něj metodu konečných prvků. Pozornost jsem věnoval třem nejvíce používaným dispersním modelům. Jedná se o Debyeho model, Lorentzův model a Drudův model. Dále jsem se zabýval technikami implementace těchto dispersních modelů. Techniky jsem zabudoval do metody konečných prvků. Navíc jsem vyvinul novou metodu založenou na technice digitální filtrace. Funkčnost vyvinutých metod a technik jsem ověřil na řadě test
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Kim, Youngmin. "Optical studies of the charge localization and delocalization in conducting polymers." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1104360957.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xvi, 145 p.; also includes graphics (some col.) Includes bibliographical references (p. 137-145).
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Deneuville, François. "Étude de la dynamique électronique des plasmas denses et tièdes par interférométrie optique." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00826666.

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La matière dense et tiède (WDM) est un régime caractérisé par une densité proche du solide pour une température avoisinant celle de Fermi. Pour étudier cet état de la matière, dans cette thèse, une expérience d'interférométrie dans le domaine des fréquences est mise en place afin de mesurer la phase et la réflectivité - dans les deux directions de polarisation S et P - d'une onde sonde en réflexion sur un échantillon chauffé de manière très brève par une impulsion laser ultra-courte (sub-100fs). Il est alors porté dans un état hors-équilibre. Une méthode basée sur les mesures de réflectivité e
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Book chapters on the topic "Modelo Lorentz-Drude"

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Eldlio, Mohamed, Franklin Che, and Michael Cada. "Drude-Lorentz Model of Semiconductor Optical Plasmons." In Lecture Notes in Electrical Engineering. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6818-5_4.

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Sgrò, Annalisa, Domenico De Carlo, Giovanni Angiulli, Francesco Carlo Morabito, and Mario Versaci. "Accurate Computation of Drude-Lorentz Model Coefficients of Single Negative Magnetic Metamaterials Using a Micro-Genetic Algorithm Approach." In Multidisciplinary Approaches to Neural Computing. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56904-8_5.

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Freeman, Richard, James King, and Gregory Lafyatis. "Models of Electromagnetic Response of Materials." In Electromagnetic Radiation. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198726500.003.0010.

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Physical models that relate the generalized complex permittivity and complex conductivity to the electronic structure of matter are introduced. The classical models of Drude and Lorentz give expressions for the complex index of refraction in a dielectric, while Drude models a metal as a plasma. Reflection and transmission properties of interfaces are expressed in terms of the complex index of refraction. Special consideration is given to the behavior of light propagation in the frequency vicinity of an atomic resonance of the material. Finally, measurement techniques are presented that are applicable to the determination of the parameters of a Lorentz/Drude representation of electromagnetic transmission in matter.
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Khanna, Vinod Kumar. "Drude-Lorentz Free Electron Model." In Introductory Nanoelectronics. CRC Press, 2020. http://dx.doi.org/10.1201/9781351204675-9.

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Ait Hammou, Brahim, Abdelhamid El Kaaouachi, Abdellatif El Oujdi, et al. "Modeling the Bulk and Nanometric Dielectric Functions of Au and Ag." In Magnetic Skyrmions. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96123.

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In this work, we model the dielectric functions of gold (Au) and silver (Ag) which are typically used in photonics and plasmonics. The modeling has been performed on Au and Ag in bulk and in nanometric states. The dielectric function is presented as a complex number with a real part and an imaginary part. First, we will model the experimental measurements of the dielectric constant as a function of the pulsation ω by appropriate mathematical functions in an explicit way. In the second part we will highlight the contributions to the dielectric constant value due to intraband and interband electronic transitions. In the last part of this work we model the dielectric constant of these metals in the nanometric state using several complex theoretical models such as the Drude Lorentz theory, the Drude two-point critical model, and the Drude three-point critical model. We shall comment on which model fits the experimental dielectric function best over a range of pulsation.
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Ketterson, J. B. "Metals and the Drude–Lorentz Model." In The Physics of Solids. Oxford University Press, 2016. http://dx.doi.org/10.1093/acprof:oso/9780198742906.003.0003.

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Conference papers on the topic "Modelo Lorentz-Drude"

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Gonano, Carlo Andrea, and Riccardo Enrico Zich. "Drude-Lorentz model in circuit form." In 2014 8th European Conference on Antennas and Propagation (EuCAP). IEEE, 2014. http://dx.doi.org/10.1109/eucap.2014.6902071.

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Sehmi, H. S., W. Langbein, and E. A. Muljarov. "Optimizing the Drude-Lorentz model for material permittivity: Examples for semiconductors." In 2017 Progress In Electromagnetics Research Symposium - Spring (PIERS). IEEE, 2017. http://dx.doi.org/10.1109/piers.2017.8261889.

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Im, Seongmin, Hongki Lee, and Donghyun Kim. "Iterative opto-thermal analysis based on the temperature-dependent Drude-Lorentz dispersion model." In Frontiers in Optics. OSA, 2019. http://dx.doi.org/10.1364/fio.2019.jtu3a.78.

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Makarov, N. M., A. Paredes-Juarez, F. Diaz-Monge, and F. Perez-Rodriguez. "Is the Drude-Lorentz model adequate for a metallic slab within terahertz/infrared frequency range?" In 2010 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW). IEEE, 2010. http://dx.doi.org/10.1109/msmw.2010.5546027.

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Efelina, Vita, Eri Widianto, Kiki Megasari, et al. "Drude Lorentz model for dielectric constant of multilayer epitaxial graphene on C-face SiC measured by synchrotron radiation." In TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES. Author(s), 2016. http://dx.doi.org/10.1063/1.4958581.

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