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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.

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Related Experiment Video

Updated: Jun 19, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

Large angular dispersion by a virtually imaged phased array and its application to a wavelength demultiplexer.

M Shirasaki

    Optics Letters
    |October 30, 2009
    PubMed
    Summary

    A novel optical scheme utilizes a virtually imaged phased array (VIPA) to achieve significantly larger angular dispersion. This method enables efficient 10-channel wavelength demultiplexing with minimal polarization dependence.

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    Area of Science:

    • Optics
    • Photonics
    • Optical Engineering

    Background:

    • Diffraction gratings are commonly used for wavelength dispersion but have limitations.
    • Achieving high angular dispersion is crucial for compact and efficient optical systems.

    Purpose of the Study:

    • To propose and demonstrate a new optical scheme for enhanced angular dispersion.
    • To utilize a virtually imaged phased array (VIPA) for improved wavelength demultiplexing.

    Main Methods:

    • Implementation of a virtually imaged phased array (VIPA) as the core component.
    • Experimental demonstration of wavelength demultiplexing for multiple channels.

    Main Results:

    • The VIPA exhibits 10-20 times greater angular dispersion compared to conventional diffraction gratings.
    • Successful wavelength demultiplexing of 10 channels with a 0.8-nm spacing was achieved.
    • Low polarization-state dependence of approximately 0.1 dB was confirmed.

    Conclusions:

    • The proposed VIPA-based scheme offers a significant advancement in optical angular dispersion.
    • This method provides an efficient solution for dense wavelength-division multiplexing applications.
    • The low polarization dependence makes the system robust for practical use.