A5026030198- Strong Light-Matter Interactions
- Plasmonic and Surface Plasmon Research
- Photonic and Optical Devices
- Thermal Radiation and Cooling Technologies
- Phase-change materials and chalcogenides
- Inorganic and Organometallic Chemistry
- Microbial Natural Products and Biosynthesis
- Mechanical and Optical Resonators
- Molecular Junctions and Nanostructures
- Infrared Target Detection Methodologies
- Solid-state spectroscopy and crystallography
- CCD and CMOS Imaging Sensors
- Agricultural and Food Sciences
- Plant Surface Properties and Treatments
- Semiconductor Lasers and Optical Devices
- Photonic Crystals and Applications
- Chalcogenide Semiconductor Thin Films
- Quantum Electrodynamics and Casimir Effect
- Electrochemical sensors and biosensors
- Studies on Chitinases and Chitosanases
- Advanced Materials Characterization Techniques
- Advanced Fiber Laser Technologies
- Silicon Nanostructures and Photoluminescence
- Electronic and Structural Properties of Oxides
- Multiferroics and related materials
Universidade Federal do Amazonas
2009-2023
Instituto Nacional de Tecnologia
2014-2020
Pontifical Catholic University of Rio de Janeiro
2015-2016
Universidade Federal de Minas Gerais
2004-2007
Milano University Press
1974
Mylan (Switzerland)
1974
This tutorial delves into the integration of plasmonic metasurfaces as cutting-edge tools for creating highly sensitive diagnostic assays tailored to neglected infectious diseases. Plasmonic provide a transformative approach diagnostics by addressing common limitations traditional methods, including slow results and high costs. explores their application in advancing cost-effective solutions manuscript covers complete cycle developing optimized, AI-driven metasurfaces, from...
The three FET CMOS active pixel sensors (APS) operating in the linear-logarithmic mode is one of most efficient wide-dynamic-range imagers. However, quality image generated at focal-plane array often compromised by fixed-pattern noise (FPN) between pixels. classical correlated double sampling (CDS) technique used to reduce FPN imagers linear mode. But complementary CDS does not work properly and alternative techniques must be applied FPN. ordinary increase either complexity or its external...
We report an experimental observation of polaritonic optical bistability the laser emission in a planar semiconductor microcavity with $100\phantom{\rule{0.3em}{0ex}}\mathrm{\AA{}}$ GaAs single quantum well strong-coupling regime. The curves show crossings that indicate competition between Kerr-like effect induced by polariton population and thermal effects. Associated bistability, laserlike occurs at bare cavity mode.
Summary Leaves surfaces have various structures with specific functions and contribute to the relationship environment. On morphological studies are analyzed parameters, ranging from macro scale through micro nanometer scale, which study of taxonomy, pharmacognosy, ecology, among others. Functional found in leaves responsible for wide variety some behaviors given terms cellular adaptation presence or absence wax. This reports characterization Anacardium occidentale L. leaf surface techniques...
Leaves surfaces, which represent an interface with plants and the environment, have several structures specific functions. Some foliar properties, including wettability mechanical containment, are inferred in terms of cellular adaptation presence or absence cuticular wax. Various morphological parameters, ranging from macro- to nano scales, analyzed contribute study taxonomy, pharmacognosy, ecology plants. The aim this paper was analyze effect influence epicuticular wax granules on...
Coherent emission efficiency in a 100Å GaAs SQW microcavity was enhanced one order when pumped resonantly at 10 K, compared to the off-resonant excitation. The usual kink observed exciton linewidth as well intensity relation pump power, changes smoothly instead of abrupt laser. In addition, polarization measurements show correlation relationship between light and cavity polarization.
Since its first observation, many of the phenomena studied in lasers, such as fluctuations, regenerative pulsations, and optical turbulence, can be observed passive bistable systems, often under better controlled conditions. Their applications are based on dispersive temperature switching using OB properties, suggesting possibilities highspeed all-optical signal processing. Thus we investigate use semiconductor microcavities with a GaAs single quantum well 100Aå Al0.3Ga0.7As barrier,...
No presente trabalho, o estudo da influência morfologia e estrutura de eletrodos diamante dopados com boro baixa dopagem, preparados três dopagens (1000, 3000 8000 ppm), foi submetido a uma caracterização detalhada. Foi constatado que razão B/C influenciou dos filmes, resultando em diferenças nas características eletroquímicas trabalho. As melhores propriedades para aplicação na análise processos redox do ligante tiossemicarbazona seu complexo Ni2+ foram encontradas eletrodo ppm. A resposta...
The most common and useful CMOS high-dynamic-range imager is the one employing active pixel sensor (APS) operating in logarithmic mode. Notwithstanding, temporal noise can compromise quality of image generated by focal-plane array. Most image-sensor models results found literature are limited to a temperature range higher than that freezeout temperature, where semiconductor doping impurities all activated. focus this paper compare spectrum behavior at room with near below point. Experimental...
The application of new computational tools to design optimized devices is an important opportunity minimize resources for its production. Moreover, these can ensure the correct operation devices, reaching operating limit. In this paper we present first quantitative study parameters optimization semiconductor microcavities synthesis under uncertainty using a genetic algorithm. These structures have been used in studies several areas technological or purely scientific purposes. However,...
In this paper we present the first quantitative study of parameters optimization for semiconductor microcavities synthesis under uncertainty using genetic algorithm. A microcavity is a system in which gain medium can interact with single cavity mode. These structures have been used important studies several areas technological or purely scientific purposes. However, definition optimal fabrication difficult task. Moreover, difficulty further increases during growth process due to experimental...
Polariton laser generated by resonant excitation presents a bistability for modulated beam. We observed one or two crossing on the curve due to thermal and Kerr competition in microcavity.