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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).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
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...
Discrete Fourier Transform01:15

Discrete Fourier Transform

The Discrete Fourier Transform (DFT) is a fundamental tool in signal processing, extending the discrete-time Fourier transform by evaluating discrete signals at uniformly spaced frequency intervals. This transformation converts a finite sequence of time-domain samples into frequency components, each representing complex sinusoids ordered by frequency. The DFT translates these sequences into the frequency domain, effectively indicating the magnitude and phase of each frequency component present...
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
Properties of Fourier Transform I01:21

Properties of Fourier Transform I

The application of Fourier Transform properties in radio broadcasting is multifaceted, enabling significant advancements in the way signals are transmitted and received. Key areas where these properties are utilized include simultaneous multi-channel transmission, audio clip speed adjustments, live broadcast delays for different time zones, audio frequency adjustments, and signal demodulation.
In radio broadcasting, multiple audio signals often need to be transmitted simultaneously. The Fourier...
Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
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Updated: Jun 6, 2026

A Multimodal Wide-Field Fourier-Transform Raman Microscope
06:48

A Multimodal Wide-Field Fourier-Transform Raman Microscope

Published on: December 30, 2025

Development of a multichannel Fourier transform spectrometer.

N Ebizuka, M Wakaki, Y Kobayashi

    Applied Optics
    |November 12, 2010
    PubMed
    Summary

    A novel multichannel Fourier transform spectrometer (MCFTS) uses a Wollaston prism and Savart plates to improve signal-to-noise ratio. This innovative design enhances spectral resolution through a new interferogram analysis method.

    Area of Science:

    • Spectroscopy
    • Optical Engineering
    • Interferometry

    Background:

    • Fourier transform spectrometers (FTS) are crucial for spectral analysis.
    • Existing FTS designs can have limitations in signal-to-noise ratio and resolving power.
    • Novel interferometer designs are needed to overcome these limitations.

    Purpose of the Study:

    • To develop a novel multichannel Fourier transform spectrometer (MCFTS).
    • To enhance the signal-to-noise ratio (SNR) of spectral measurements.
    • To improve the resolving power of spectroscopic instruments.

    Main Methods:

    • Incorporation of a Wollaston prism and polarizing interferometer.
    • Utilized two Savart plates and a phase-retarding plate.
    • Employed a two-dimensional imaging detector (e.g., CCD) for recording folded interferograms.

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    Published on: June 27, 2014

    Generation and Coherent Control of Pulsed Quantum Frequency Combs
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    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

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    Last Updated: Jun 6, 2026

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    Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
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    Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

    Published on: June 27, 2014

    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    Main Results:

    • The novel MCFTS design allows for the recording of multiple lines of folded interferograms.
    • The design maximizes the use of incident light, minimizing reflection losses.
    • Potential for significant enhancement in signal-to-noise ratio was demonstrated.

    Conclusions:

    • The developed MCFTS offers improved performance over conventional designs.
    • The system shows promise for enhanced spectral resolution through advanced interferogram analysis.
    • This novel spectrometer design advances capabilities in optical spectroscopy.