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IR Spectrometers01:25

IR Spectrometers

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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Related Experiment Video

Updated: Jul 8, 2026

A Multimodal Wide-Field Fourier-Transform Raman Microscope
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Capacitive-grid beam splitters for far-infrared and millimeter-wave interferometers

K D Möller, V P Tomaselli, J Colosi

    Applied Optics
    |September 15, 1984
    PubMed
    Summary

    No abstract available in PubMed .

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