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Related Experiment Video

Updated: Jun 6, 2026

Implementation of a Reference Interferometer for Nanodetection

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Novel interferometer based on a wedge prism.

|November 12, 2010

Summary

This summary is machine-generated.

A simple, inexpensive interferometer using an optical wedge and two mirrors is presented. This device is easy to align and useful for various optical testing applications.

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Area of Science:

Optics
Interferometry
Laboratory instrumentation

Background:

Traditional interferometers can be complex and expensive.
Alignment and optical isolation are common challenges in interferometry.

Purpose of the Study:

To introduce a simple, cost-effective unequal-path interferometer for laboratory use.
To demonstrate its utility in coherence testing, wavelength stabilization, and optical testing.

Main Methods:

The interferometer is constructed using an uncoated optical wedge and two mirrors.
The design avoids ghost reflections and is polarization-independent.
No optical isolation is required for operation.

Main Results:

The interferometer is inexpensive to fabricate and straightforward to align.
It functions effectively without specialized optical isolation.
The device is versatile for multiple optical measurement tasks.

Conclusions:

This simple interferometer offers a practical and economical solution for laboratory optical measurements.
Its ease of use and robustness make it suitable for coherence testing, wavelength stabilization, and general optical testing.