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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
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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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Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical field in...
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Atomic Absorption Spectroscopy: Instrumentation

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Spectrophotometry is the quantitative measurement of the absorption, reflection, diffraction, or transmission of electromagnetic radiation through a material as a function of the intensity and wavelength of the radiation. A spectrophotometer is a device used to measure the change in the radiation intensity caused by its interaction with the material.
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Updated: Jun 16, 2026

Polarization-Sensitive Two-Photon Microscopy for a Label-Free Amyloid Structural Characterization
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Published on: September 8, 2023

Polarization fourier spectrometer for astronomy.

M F A'hearn, F J Ahern, D M Zipoy

    Applied Optics
    |February 4, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A new polarization Fourier spectrometer offers improved performance from 0.3 to 2.5 micrometers. This study details construction, data reduction, and presents results demonstrating the instrument's capabilities.

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    Area of Science:

    • Spectroscopy
    • Optical Engineering
    • Instrumentation

    Background:

    • Fourier transform spectroscopy is a powerful technique for spectral analysis.
    • Previous polarization Fourier spectrometers have limitations in performance and usability.
    • The 0.3 to 2.5 micrometer range is crucial for various material and atmospheric studies.

    Purpose of the Study:

    • To describe a novel polarization Fourier spectrometer with enhanced capabilities.
    • To address practical challenges in the construction and data processing of such instruments.
    • To showcase the instrument's performance through typical experimental results.

    Main Methods:

    • Development and construction of an improved polarization Fourier spectrometer.
    • Implementation of refined data reduction techniques.
    • Experimental validation of the spectrometer's performance across its operational range.

    Main Results:

    • The described spectrometer demonstrates superior performance compared to previous designs.
    • Practical issues in construction and data reduction have been successfully addressed.
    • Typical results confirm the instrument's effectiveness in the 0.3 to 2.5 micrometer spectral range.

    Conclusions:

    • The new polarization Fourier spectrometer is a significant advancement in spectroscopic instrumentation.
    • The presented methods facilitate the practical application of this technology.
    • The instrument is well-suited for a range of scientific investigations requiring high-performance spectral measurements.