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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
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.
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...

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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

Extended plasma source for short-wavelength amplifiers.

J F Reintjes, R H Dixon, R C Elton

    Optics Letters
    |August 18, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Researchers created an elongated plasma using laser-produced plasma on a carbon surface. This plasma shows potential for short-wavelength amplification due to high ion densities.

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    Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
    11:20

    Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses

    Published on: July 2, 2012

    Area of Science:

    • Plasma Physics
    • Laser-Matter Interaction
    • Atomic Physics

    Background:

    • Laser-produced plasmas are crucial for various applications, including spectroscopy and materials science.
    • Controlling plasma expansion and density is key to optimizing their utility.
    • Carbon plasmas offer unique properties due to carbon's electronic structure.

    Purpose of the Study:

    • To form an elongated plasma channel using laser-produced plasma on a carbon surface.
    • To investigate the characteristics of the plasma, specifically ion density and aspect ratio.
    • To assess the potential of the generated plasma for short-wavelength amplification applications.

    Main Methods:

    • Generating plasma by focusing a laser onto a carbon surface.
    • Utilizing a guiding channel to form an elongated plasma structure.
    • Measuring ion densities, specifically C(6+) ions, in the plasma.

    Main Results:

    • Successfully formed an elongated plasma with a length of approximately 8 mm and an aspect ratio of ~6:1.
    • Observed high densities of C(6+) ions, reaching near 10(16) cm(-3).
    • Identified a contracted plasma region beyond the guiding channel exhibiting these high densities.

    Conclusions:

    • The formation of an elongated, high-density carbon plasma is achievable via laser-driven methods.
    • The observed C(6+) ion densities suggest significant potential for short-wavelength amplification.
    • This technique offers a promising pathway for developing new sources for advanced spectroscopic and potentially laser applications.