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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

Carousel interferometer.

J K Kauppinen, I K Salomaa, J O Partanen

|November 10, 2010

Summary

This summary is machine-generated.

A novel carousel interferometer offers a compact and stable design for Fourier-transform spectrometers. Its unique configuration provides robust performance across a wide spectral range, making it a cost-effective solution.

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Area of Science:

Optics and Photonics
Spectroscopy Instrumentation

Background:

Swinging interferometers are crucial for Fourier-transform spectroscopy.
Existing designs can be sensitive to environmental perturbations and complex to manufacture.

Purpose of the Study:

To introduce and characterize a new compact swinging interferometer, the carousel interferometer.
To compare its performance against existing swinging interferometer designs.

Main Methods:

The carousel interferometer utilizes five plane mirrors.
Optical path difference is achieved by rotating a four-mirror system.
Modulation independence from scanning was analyzed.

Main Results:

The new interferometer exhibits high stability, being insensitive to external perturbations.
Its modulation is nearly independent of the interferometer's scanning motion.
The design is exceptionally compact.

Conclusions:

The carousel interferometer presents a stable, low-cost, and compact alternative for swinging interferometry.
It is highly suitable for small Fourier-transform spectrometers across UV to far-infrared regions.