Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Electro-mechanical Systems01:19

Electro-mechanical Systems

1.7K
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
1.7K
Line Loss01:10

Line Loss

547
The different configurations of source-load connections include wye (star) and delta connections. The relationship between line and phase voltages and currents varies depending on the configuration. When the source is supplying power, it is transmitted through the wires to the load, and during this transmission, some power is absorbed by the wires, leading to line loss.
Line loss impacts power delivery efficiency in a balanced three-phase circuit. The symmetry in such a circuit simplifies the...
547
Reducing Line Loss01:18

Reducing Line Loss

393
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss in...
393
Major Losses in Pipes01:28

Major Losses in Pipes

2.0K
When a fluid flows through a pipe, it experiences energy losses due to frictional resistance along the pipe walls, known as major losses. These energy losses result in a pressure drop, which varies based on the flow conditions — whether laminar or turbulent — and the specific physical properties of the fluid and pipe.
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to viscous...
2.0K
Minor Losses in Pipes01:25

Minor Losses in Pipes

2.0K
In pipe systems, minor losses refer to energy losses arising from components such as valves, bends, fittings, expansions, and other features that disrupt the steady flow of fluid. These disturbances cause energy dissipation through turbulence and resistance, which engineers quantify to manage system efficiency effectively.
Valves play a significant role in generating minor losses by obstructing or redirecting the fluid flow. When a valve is closed or partially closed, it restricts the flow...
2.0K
Energy Losses in Transformers01:21

Energy Losses in Transformers

1.4K
In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality,  the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
There are four main reasons for energy losses in transformers.
The first cause can be  the high resistance of the...
1.4K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Ambient to Cryogenic High-Frequency Response of Zero-Bias Graphene Photodetectors.

ACS applied materials & interfaces·2026
Same author

Recent Advances in Microenvironment-Responsive Materials for Periodontitis Therapy.

International journal of molecular sciences·2026
Same author

Optical Fourier Surfaces for Integrated Photonics.

ACS nano·2026
Same author

All-optical polarization control in time-varying low-index films via plasma symmetry breaking.

Nature photonics·2026
Same author

Anticipating decoherence in quantum systems.

Nature communications·2026
Same author

Ultra-Precise Dispensing for Rapid and Flexible Through-Silicon Via Filling.

Materials (Basel, Switzerland)·2026
Same journal

Incoming US science academy chief vows to 'double down' on research.

Nature·2026
Same journal

Author Correction: Synthesis of enantioenriched atropisomers by biocatalytic deracemization.

Nature·2026
Same journal

Electrodeposited self-assembled molecules for perovskite photovoltaics.

Nature·2026
Same journal

Neutrino's nursery found: the 'Shadow Blaster'.

Nature·2026
Same journal

Dementia risk in middle-aged people linked to a blood protein.

Nature·2026
Same journal

Daily briefing: What's really happening with trust in science.

Nature·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Feb 11, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

15.3K

Modulador electro-óptico asistido por plasmonas de baja pérdida

Christian Haffner1, Daniel Chelladurai2, Yuriy Fedoryshyn2

  • 1ETH Zurich, Institute of Electromagnetic Fields (IEF), Zurich, Switzerland. haffnerc@ethz.ch.

Nature
|April 27, 2018
PubMed
Resumen
Este resumen es generado por máquina.

Los investigadores evitaron las pérdidas plasmónicas utilizando conmutación por resonancia, lo que permitió dispositivos ópticos más rápidos y más pequeños. Este avance supera un obstáculo importante para la plasmónica práctica en la detección y las comunicaciones.

Más Videos Relacionados

Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations
06:19

Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations

Published on: June 23, 2022

3.0K
Analyzing the Movement of the Nauplius 'Artemia salina' by Optical Tracking of Plasmonic Nanoparticles
05:52

Analyzing the Movement of the Nauplius 'Artemia salina' by Optical Tracking of Plasmonic Nanoparticles

Published on: July 15, 2014

11.0K

Videos de Experimentos Relacionados

Last Updated: Feb 11, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

15.3K
Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations
06:19

Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations

Published on: June 23, 2022

3.0K
Analyzing the Movement of the Nauplius 'Artemia salina' by Optical Tracking of Plasmonic Nanoparticles
05:52

Analyzing the Movement of the Nauplius 'Artemia salina' by Optical Tracking of Plasmonic Nanoparticles

Published on: July 15, 2014

11.0K

Área de la Ciencia:

  • Las plasmónicas
  • La nanofotónica
  • Ingeniería de dispositivos ópticos

Sus antecedentes:

  • La plasmónica, el estudio de las interacciones entre la luz y la materia con el movimiento de los electrones en las superficies metálicas, se ha dirigido durante mucho tiempo a dispositivos ópticos de longitud de onda inferior.
  • Las pérdidas ohmicas debidas al movimiento de los electrones generan calor, lo que limita las aplicaciones plasmónicas en la tecnología de detección e información.
  • Un punto de vista prevaleciente consideraba que las plasmónicas eran demasiado pérdidas para su aplicación práctica.

Objetivo del estudio:

  • Para superar las limitaciones de las pérdidas ohmicas en dispositivos plasmónicos.
  • Demostrar un nuevo método para eludir la generación de calor en sistemas plasmónicos.
  • Realizar dispositivos ópticos de longitud de onda para aplicaciones avanzadas.

Principales métodos:

  • Introducción del "cambio de resonancia" para controlar el acoplamiento de la luz a los polaritones plasmónicos de superficie con pérdidas.
  • Interferencia destructiva utilizada para evitar el acoplamiento de la luz en el estado "encendido" (fuera de resonancia).
  • Fabricado y probado un modulador de anillo electro-óptico plasmónico para validar el enfoque.

Principales resultados:

  • Demostrado eludir las pérdidas ohmicas a través de la conmutación de resonancia.
  • Logró grandes ratios de extinción entre los estados encendido y apagado con conmutación subpicosegundo.
  • La validación experimental confirmó bajas pérdidas ópticas en el chip, funcionamiento a alta velocidad (> 100 GHz), eficiencia energética y estabilidad térmica.

Conclusiones:

  • Los plasmónicos pueden ser prácticos para aplicaciones de alto rendimiento al mitigar las pérdidas.
  • La técnica de conmutación por resonancia permite el desarrollo de tecnologías de detección y comunicación en chip rápidas y compactas.
  • Este trabajo abre nuevas vías para integrar la plasmónica en futuras plataformas de información y detección.