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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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Related Experiment Video

Updated: Aug 9, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

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Published on: November 30, 2012

Multi-resonant open-access microcavity arrays for light matter interaction.

Thomas H Doherty, Axel Kuhn, Ezra Kassa

|February 24, 2023

Summary

This summary is machine-generated.

Researchers developed a high-finesse open-access cavity array for creating multiple coherent light-matter interfaces. This compact system, built with novel substrates and laser machining, shows promise for enhanced optical performance.

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Last Updated: Aug 9, 2025

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Area of Science:

Optics and Photonics
Quantum Technology
Materials Science

Background:

Creating multiple, coherent light-matter interfaces is crucial for quantum information processing and advanced optical systems.
Existing fiber-tip cavities offer high finesse but can be challenging to scale and integrate.
A compact, scalable platform is needed to enhance the performance and accessibility of such interfaces.

Purpose of the Study:

To realize a high-finesse open-access cavity array for scalable light-matter interfaces.
To detail the fabrication techniques, including tapered pyramidal substrates and laser machining.
To demonstrate the performance and tunability of the fabricated cavity array.

Main Methods:

Fabrication of tapered pyramidal substrates for cavity mirrors.
Development of an in-house laser machining setup for precise mirror creation.
Characterization of cavity optical properties using laser spectroscopy.
Demonstration of a 2x2 cavity array with independent frequency tuning.

Main Results:

The fabricated cavities exhibit high finesse and optical properties comparable to state-of-the-art fiber-tip cavities.
The system enables the creation of multiple, coherent light-matter interfaces in a compact environment.
Independent frequency tuning between neighboring cavity sites was successfully demonstrated.
The platform shows potential for improved performance, even in single-mode operation.

Conclusions:

A novel high-finesse open-access cavity array has been successfully realized.
The developed fabrication methods offer a scalable route to advanced optical systems.
This technology paves the way for enhanced coherent light-matter interfaces in compact quantum devices.