Study the non-linear effects by focusing the high power laser

Plasma is a nonlinear optical phenomenon. Non-linear situation distinguished in plasma, when a single electron and ions interact with two or more photons. Previous work demonstrated the creation of plasma by different technique. Here, we are going to investigate the behaviour of laser produced plasm...

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Main Authors: Bidin, Noriah, Qindeel, Rabia, Yaccob, Yaccob
Format: Book Section
Published: Institute of Electrical and Electronics Engineers 2009
Subjects:
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author Bidin, Noriah
Qindeel, Rabia
Yaccob, Yaccob
author_facet Bidin, Noriah
Qindeel, Rabia
Yaccob, Yaccob
author_sort Bidin, Noriah
collection ePrints
description Plasma is a nonlinear optical phenomenon. Non-linear situation distinguished in plasma, when a single electron and ions interact with two or more photons. Previous work demonstrated the creation of plasma by different technique. Here, we are going to investigate the behaviour of laser produced plasma. We developed and tested a Langmuir Probe made by tungsten (W) wire, suitable for measurement in lab environment. The parameters, such as electron and ion density, electron temperature, and plasma and floating potential are measured by using Langmuir Probe. Data acquisition and calculation of plasma parameters are controlled by a personal computer. In order to achieve plasma we used a fundamental study by diagnosing the plasma induced by focusing a Q-switched Nd:YAG laser. The formation of plasma was visualized by using a CCD video camera and interfaced to the personal computer. In order to understand the processes occurring in plasmas, it is necessary to be able to make accurate, spatial measurements of plasma parameters. Thus, Langmuir Probe is still one of the most natural approaches to diagnose the parameters of pulsed plasma, especially for the plasma density because the Langmuir Probe has to be inserted into the plasma to directly sense the particle flux, it may cause local perturbation of the plasma. The nature of the perturbation depends on the potential of the probe and the electric current drawn by it.
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spelling utm.eprints-131192017-06-20T07:47:58Z http://eprints.utm.my/13119/ Study the non-linear effects by focusing the high power laser Bidin, Noriah Qindeel, Rabia Yaccob, Yaccob QC Physics Plasma is a nonlinear optical phenomenon. Non-linear situation distinguished in plasma, when a single electron and ions interact with two or more photons. Previous work demonstrated the creation of plasma by different technique. Here, we are going to investigate the behaviour of laser produced plasma. We developed and tested a Langmuir Probe made by tungsten (W) wire, suitable for measurement in lab environment. The parameters, such as electron and ion density, electron temperature, and plasma and floating potential are measured by using Langmuir Probe. Data acquisition and calculation of plasma parameters are controlled by a personal computer. In order to achieve plasma we used a fundamental study by diagnosing the plasma induced by focusing a Q-switched Nd:YAG laser. The formation of plasma was visualized by using a CCD video camera and interfaced to the personal computer. In order to understand the processes occurring in plasmas, it is necessary to be able to make accurate, spatial measurements of plasma parameters. Thus, Langmuir Probe is still one of the most natural approaches to diagnose the parameters of pulsed plasma, especially for the plasma density because the Langmuir Probe has to be inserted into the plasma to directly sense the particle flux, it may cause local perturbation of the plasma. The nature of the perturbation depends on the potential of the probe and the electric current drawn by it. Institute of Electrical and Electronics Engineers 2009 Book Section PeerReviewed Bidin, Noriah and Qindeel, Rabia and Yaccob, Yaccob (2009) Study the non-linear effects by focusing the high power laser. In: IEEE International Conference on Plasma Science. Institute of Electrical and Electronics Engineers, New York. ISBN 978-142442618-8 http://dx.doi.org/10.1109/PLASMA.2009.5227296 doi:10.1109/PLASMA.2009.5227296
spellingShingle QC Physics
Bidin, Noriah
Qindeel, Rabia
Yaccob, Yaccob
Study the non-linear effects by focusing the high power laser
title Study the non-linear effects by focusing the high power laser
title_full Study the non-linear effects by focusing the high power laser
title_fullStr Study the non-linear effects by focusing the high power laser
title_full_unstemmed Study the non-linear effects by focusing the high power laser
title_short Study the non-linear effects by focusing the high power laser
title_sort study the non linear effects by focusing the high power laser
topic QC Physics
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AT qindeelrabia studythenonlineareffectsbyfocusingthehighpowerlaser
AT yaccobyaccob studythenonlineareffectsbyfocusingthehighpowerlaser