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Standing Waves in a Cavity

Standing Waves in a Cavity

A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:

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Updated: Jun 6, 2026

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

Plasmonic waveguiding in a hexagonally ordered metal wire array.

Zhong-Xiang Zhang¹, Ming-Lie Hu, Kam Tai Chan

¹Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong. zxzhang@ee.cuhk.edu.hk

|December 3, 2010

Summary

We developed a novel plasmonic waveguide using nanoscale metal wires in silica fiber. This structure offers enhanced light confinement and potential for integration into nanocircuits.

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Area of Science:

Photonics and Nanotechnology
Materials Science

Background:

Plasmonic waveguides are crucial for nanoscale light manipulation.
Existing structures often face limitations in light confinement and propagation length.

Purpose of the Study:

To propose and analyze a novel symmetric plasmonic waveguide design.
To investigate the properties of surface plasmon polariton modes in the proposed structure.

Main Methods:

Numerical simulations were employed to study the waveguide.
Key parameters varied included wire diameter and spacing.
Surface plasmon polariton modes were analyzed.

Main Results:

A hybrid mode was achieved through the hybridization of single-wire and gap plasmon modes.
The hybrid mode demonstrated propagation lengths comparable to existing structures.
Superior light confinement was observed in the proposed waveguide.

Conclusions:

The designed plasmonic waveguide exhibits excellent light confinement and competitive propagation lengths.
The structure's compatibility with gain materials facilitates loss compensation.
This offers a promising platform for integration with electronic circuits at the nanoscale.