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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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Trapping of Micro Particles in Nanoplasmonic Optical Lattice

Trapping of Micro Particles in Nanoplasmonic Optical Lattice

Published on: September 5, 2017

Vertical plasmonic resonant nanocavities.

Xinli Zhu¹, Jiasen Zhang, Jun Xu

¹State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University , Beijing 100871, People's Republic of China.

|February 2, 2011

Summary

This summary is machine-generated.

We show plasmonic modes in a vertical nanocavity, achieving strong light confinement. This research advances nanoscale plasmonic vertical cavity surface-emitting lasers.

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Area of Science:

Photonics and Nanotechnology
Plasmonics
Cavity Optics

Background:

Vertical nanocavities are crucial for optoelectronic devices.
Plasmonic modes offer enhanced light-matter interactions at the nanoscale.

Purpose of the Study:

To demonstrate and investigate plasmonic modes in a vertical nanocavity.
To explore light confinement and modal volume for laser applications.

Main Methods:

Fabrication of a vertical nanocavity with Ag reflectors and an air output window.
Cathodoluminescence spectroscopy for investigating surface plasmon polariton resonances.
Comparison of experimental results with theoretical simulations.

Main Results:

Demonstration of plasmonic modes within the vertical nanocavity.
Determination of resonant modes through experimental and theoretical analysis.
Observation of strong electromagnetic field confinement with a minimal modal volume of 0.0014 μm³.

Conclusions:

The study provides a detailed understanding of plasmonic modes in vertical nanocavities.
Results offer insights for the development of nanoscale plasmonic vertical cavity surface-emitting lasers.