Search Results - "Romero, Murilo A."

Analytical Physics-Based Compact Current-Voltage Model for 2D-2D Resonant Tunneling Diodes by Celino, Daniel R., Ragi, Regiane, Romero, Murilo A.

“…In this paper, we develop an analytical model for the resonant current-voltage ( I-V ) characteristics of 2D-2D Resonant Tunneling Diodes. Starting from the…”
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Improved self-seeding and carrier remodulation performance for WDM-PON by means of double RSOA erasure by Celino, Daniel R., Duarte, Ulysses R., Romero, Murilo A.

“…In this work, we investigated a novel wavelength division multiplexing passive optical network (WDM-PON) configuration, based on cascaded reflective…”
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Accurate and fully analytical expressions for quantum energy levels in finite potential wells for nanoelectronic compact modeling by Celino, Daniel R., Romero, Murilo A., Ragi, Regiane

“…In this paper, we present fully analytical closed-form expressions to provide the energy levels of finite quantum wells. The model accounts for unequal…”
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Discrete Spectral Encryption of Single-Carrier Signals With Pseudo Random Dynamic Keys by Abbade, Marcelo L. F., Souza, Welerson S., Santos, Melissa O., Rodrigues, Ivan E. L., Aldaya, Ivan, Bonani, Luiz. H., Romero, Murilo A.

“…Physical layer security is a crucial step towards fully secure communications systems. The flexibility and ubiquity of digital signal processors in modern…”
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Analysis of Optical Erasure Efficiency in WDM-PONs Employing Carrier Remodulation by Batalha, Camilla de Santana, Duarte, Ulysses Rondina, Martinez, Maria Aparecida Gonçalves, Romero, Murilo A.

“…This paper proposes a method to monitor the operation performance of reflective semiconductor optical amplifier (RSOA)-based optical network units (ONUs) in…”
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Analog Radio-over-Fiber Fronthaul by a WDM-PON employing Double RSOA Self-Seeding and Carrier-Reuse Techniques by Souza, Adelcio M., Celino, Daniel R., Duarte, Ulysses R., Romero, Murilo A.

“…Abstract WDM-PON has been considered a promising solution for future fronthaul links concerning new mobile networks applications. However, in order to avoid…”
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Simultaneous nominal and effective differential group delay in-service monitoring method for optical communications systems by Simões, Glauco C C P, Floridia, Claudio, Franciscangelis, Carolina, Argentato, Márcio C, Romero, Murilo A

“…In this paper, we propose an in-service method to simultaneously monitor both nominal and effective values of differential group delay (DGD) in…”
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Theoretical analysis of supercontinuum generation in a highly birefringent D-shaped microstructured optical fiber by Martins, Emiliano R, Spadoti, Danilo H, Romero, Murilo A, Borges, Ben-Hur V

“…This paper carries out a rigorous analysis of supercontinuum generation in an improved highly asymmetric microstructured fiber (MF) design. This geometry,…”
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Hybrid distributed Raman/EDFA amplifier with hybrid automatic gain control for reconfigurable WDM optical networks by Oliveira, Juliano R. F., Moura, Uiara C., Oliveira, Júlio C. R. F., Romero, Murilo A.

“…Nowadays, optical amplifiers designs are induced by new requirements generated by optical networks. The introduction of WDM reconfigurable networks with…”
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Modeling of peak voltage and current of nanowire resonant tunneling devices: case study on InAs/InP double-barrier heterostructures by Ragi, R., da Nobrega, Rafael V.T., Romero, Murilo A.

“…SUMMARYIn this paper, we develop an analytical model for the prediction of the peak voltage and the current in the current–voltage characteristics of nanowire…”
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Compact Modeling of Transition Metal Dichalcogenide Ballistic Transistors by de Souza, Adelcio M., Celino, Daniel R., Romero, Murilo A.

“…This paper describes a new compact model for the I-V characteristics of ballistic transistors based on twodimensional semiconductors (2D-FETs). Our model is…”
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Analytical Model for Cylindrical Junctionless Nanowire FETs by de Souza, Adelcio M., Celino, Daniel R., Ragi, Regiane, Romero, Murilo A.

“…This paper presents an analytical model for the I-V and C-V characteristics of cylindrical junctionless nanowire FETs. The obtained expressions are continuous…”
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Analytical Model for Monolayer Phosphorene DG-FETs in the Ballistic Regime by Souza, Adelcio M. de, Celino, Daniel R., Romero, Murilo A.

“…This paper presents an analytical model for ballistic double-gate field-effect transistors (DG-FETs) based on monolayer phosphorene. Unlike other approaches,…”
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A novel self consistent calculation approach for the capacitance-voltage characteristics of semiconductor quantum wire transistors based on a split-gate configuration by Ragi, Regiane, da Nobrega, Rafael V.T., Romero, Murilo A.

“…Purpose - The purpose of this paper is to develop an efficient numerical algorithm for the self-consistent solution of Schrodinger and Poisson equations in…”
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A Cost-Benefit Analysis on Modulation Formats for 40-Gb/s Optical Communication Systems by da Silveira, Clenilson Rodrigues, Pataca, Daniel M., Romero, Murilo A., de Lacerda Rocha, Mônica

“…This article discusses possible approaches for optical network capacity upgrade by considering the use of different modulation formats at 40 Gb/s. First, a…”
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Design and characterization of bridged loop-gap resonators for use in electron paramagnetic resonance measurements by da Silva, Fernanda R, Sartori, José Carlos, Romero, Murilo A, Nascimento, Otaciro R

“…This paper revisits the design of L and S band bridged loop-gap resonators (BLGRs) for electron paramagnetic resonance applications. A novel configuration is…”
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Microwave-Photonics and WDM-PON Fronthaul for 5G Mobile Systems: Research Activities in Brazil by Romero, Murilo A., Arismar Cerqueira, S.

“…Brazilian researchers have been active since the very early days of microwave-photonics, even before this term was coined. The present paper addresses current…”
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Fully Analytical Compact Model for the I-V Characteristics of Resonant Tunneling Diodes by Celino, Daniel R., de Souza, Adelcio M., Plazas, Caio L. M. P., Ragi, Regiane, Romero, Murilo A.

“…This paper presents a fully analytical physics-based model for the current-voltage (I-V) characteristics of resonant tunneling diodes. We consider the whole…”
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An analytical model for the photodetection mechanisms in high-electron mobility transistors by Romero, M.A., Martinez, M.A.G., Herczfeld, P.R.

“…The use of microwave high-electron mobility transistors (HEMTs) as photodetectors or optically controlled circuit elements have attracted interest. A model of…”
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Optimum design of few-mode EDFAs by using topology optimization by Herbster, Adolfo F., Romero, Murilo A.

“…The optimum design of FM-EDFAs is rigorously tackled as a multi-objective optimization problem, in a novel approach based on the topology optimization…”
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