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Updated: Jun 26, 2026

Dependence of Laser-induced Breakdown Spectroscopy Results on Pulse Energies and Timing Parameters Using Soil Simulants

Dependence of Laser-induced Breakdown Spectroscopy Results on Pulse Energies and Timing Parameters Using Soil Simulants

Published on: September 23, 2013

Theoretical model for double pulse laser-induced breakdown spectroscopy.

Virendra N Rai¹, Fang Yu Yueh, Jagdish P Singh

¹Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452013, India. vnrai@cat.ernet.in

|January 6, 2009

Summary

A new theoretical model explains enhanced plasma emission from double laser pulses. It shows emission depends on plasma density, volume, and absorbed energy, with electron-ion collisions influencing timing.

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Area of Science:

Plasma Physics
Laser-Material Interactions
Spectroscopy

Background:

Double pulse laser-induced plasmas offer enhanced emission properties.
Understanding the factors governing this enhancement is crucial for applications.

Purpose of the Study:

To develop a simple theoretical model for plasma emission from double pulse laser-induced plasmas.
To elucidate the key physical processes and parameters influencing emission enhancement.

Main Methods:

A theoretical model was formulated.
The model relates plasma emission to plasma density, volume, and absorbed energy.
It incorporates electron-ion collision frequency and mass ablation rate.

Main Results:

Plasma emission is proportional to the square of plasma density and volume.
The fraction of second pulse absorbed via inverse bremsstrahlung is critical.
Electron-ion collision frequency dictates emission enhancement profile and timing.
Increased mass ablation rate significantly impacts enhancement amplitude.

Conclusions:

The model provides a framework for understanding double pulse laser-induced plasma emission.
It highlights the roles of plasma parameters, laser absorption, and collisional processes.
The findings can guide optimization of laser-plasma interactions for enhanced emission.