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Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

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Updated: Jun 15, 2026

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

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Published on: December 22, 2015

Simple fast-scanning Fabry-Perot spectrometer.

A Ludmirsky, C Cohen, Y Kagan

|March 9, 2010

Summary

This summary is machine-generated.

A novel time-resolved Fabry-Perot spectrometer was developed to measure plasma line profiles. This system successfully measured the velocity of accelerated copper plasma within 25 nanoseconds.

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Area of Science:

Plasma Physics
Spectroscopy
Optical Instrumentation

Background:

Pulsed plasmas emit spectral lines crucial for diagnostics.
Accurate measurement of plasma line profiles requires high temporal resolution.
Existing methods may lack the speed for transient plasma events.

Purpose of the Study:

To design and implement a simple, time-resolved spectrometer.
To enable rapid measurement of plasma line profiles.
To determine the velocity of accelerated plasma species.

Main Methods:

A Fabry-Perot interferometer was configured for time-resolved measurements.
A rotating mirror was employed to scan fringe patterns.
Interference pattern intensity distributions were recorded within 25 nanoseconds.

Main Results:

The developed spectrometer achieved time-resolved line profile measurements.
The system demonstrated effective fringe scanning using a rotating mirror.
The velocity of a copper plasma was successfully quantified.

Conclusions:

A simple and effective time-resolved Fabry-Perot spectrometer was successfully demonstrated.
The instrument is suitable for analyzing transient plasma phenomena.
This technique provides a viable method for plasma velocity measurements.