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2001 Fiscal Year Final Research Report Summary

Laser scattering measurements of electric field, electron density and electron temperature in a plasma-display discharge

Research Project

Project/Area Number 11650350
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 電子デバイス・機器工学
Research InstitutionKyushu University

Principal Investigator

UCHINO Kiichiro  Interdisciplinary Graduate School of Engineering Science, Kyushu University, Professor, 大学院・総合理工学研究院, 教授 (10160285)

Co-Investigator(Kenkyū-buntansha) KAJIWARA Toshinori  Department of Engineering, Fukuoka Institute of Technology, Professor, 工学部, 教授 (00185779)
Project Period (FY) 1999 – 2001
Keywordsplasma / display / PDP / discharge / Thomson scattering / laser / electron density / electron temperature
Research Abstract

This research has been carried out to develop laser Thomson scattering (LTS) as a diagnostic method of micro-discharges for the plasma display panel (PDF) and to reveal the discharge structure based on profiles of electron density n_e and electron temperature T_e measured by LTS.
Obtained results are as follows.
1. For the application of LTS to the micro-discharge, difficulties were a very small Thomson scattering signal and the very strong stray laser. In order to overcome these difficulties, we used the photon counting method, and fabricated a special triple-grating spectrometer which had a stray light rejection of 10^8. These allowed us to perform Thomson scattering measurements of n_e and T_e in the micro-discharges.
2. The LTS system developed was applied to the micro-discharge which simulated the PDF discharge. As a result, clear LTS signals were detected for the first time at 0.1 mm above the surface of the electrode substrate.
3. Profiles of n_e and T_e were measured at 0.1 mm above the surface of the electrode substrate. Values of n_e and T_e were (0.2 - 3) x 10^<19> m^<-3> and (1.6 - 3.4) eV, respectively, depending on the time from the beginning of the pulsed discharge and the observation position.
4. The structure of the micro-discharge is discussed in terms of the obtained distributions of n_e and T_e. We have shown that the temporal change of the T_e peak position can be related to the movement of the discharge front which is formed by the wall-charges accumulated on the dielectric surface of the electrode substrate.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] Y.Noguchi, A.Matsuoka, M.D.Bowden, K.Uchino, K.Muraoka: "Measurements of Electron Temperature and Density of a Micro-Discharge Plasma Using Laser Thomson Scattering"Japanese Journal of Applied Physics. 40. 326-329 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Noguchi, A.Matsuoka, K.Uchino, K.Muraoka: "Direct measurement of electron density and temperature distributions in a micro-discharge plasma for a plasma display panel"Journal of Applied Physics. Vol.91. 613-616 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y. Noguchi, A. Matsuoka, M.D. Bowden, K. Uchino, K. Muraoka: "Measurements of Electron Temperature and Density of a Micro-Discharge Plasma Using Laser Thomson Scattering"Japanese Journal of Applied Physics. Vol.40. 326-329 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Noguchi, A. Matsuoka, K. Uchino, K. Muraoka: "Direct measurement of electron density and temperature distributions in a micro-discharge plasma for a plasma display panel"Japanese Journal of Applied Physics. Vol.91. 613-616 (2002)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2003-09-17  

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