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There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...

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Two-mirror wave-front-dividing interferometer for infrared synchrotron radiation.

K D Möller, D P Siddons, C J Hirschmugl

|August 19, 2010

Summary

Researchers developed a novel instrument for infrared synchrotron radiation, utilizing wave-front division for beam splitting. This new tool enhances measurements across a broad wavelength range, offering advantages over traditional methods.

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Area of Science:

Optics and Photonics
Synchrotron Radiation Science
Infrared Spectroscopy

Background:

Infrared synchrotron radiation offers unique properties for spectroscopy.
Conventional instruments may not fully exploit the spatial coherence of synchrotron sources.
Advancements in instrumentation are crucial for pushing the boundaries of infrared measurements.

Purpose of the Study:

To introduce the first instrument specifically designed for infrared synchrotron radiation.
To leverage the spatial coherence of infrared synchrotron radiation for enhanced measurements.
To demonstrate the capabilities of the new instrument across a wide spectral range.

Main Methods:

Development of a novel instrument employing wave-front division for beam splitting.
Utilizing infrared synchrotron radiation as the light source.
Testing the instrument's performance across the 10 to 1000 micrometer wavelength region.

Main Results:

Successful demonstration of an instrument optimized for infrared synchrotron radiation.
Effective beam splitting achieved through wave-front division.
Data collected across a broad spectral range (10-1000 µm) validates instrument performance.

Conclusions:

The developed instrument is the first of its kind for infrared synchrotron radiation.
Wave-front division is an effective method for beam splitting with coherent sources.
This instrument offers significant advantages over conventional setups for infrared spectroscopy.