지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2003.9
- 수록면
- 145 - 149 (5page)
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초록· 키워드
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The anisotropy of electron energy distribution in oxygen plasmas produced by a high intensity laser was investigated by using polarization spectroscopy. An ultra-short pulsed laser with a pulse duration of 66.5 fs and a power density of 1 × 10^(17) W/㎠ was used. At this power density and pulse duration, the plasma was generated predominantly by optical field ionization. The degree of polarization of OVI 1s²2p ²P²-1s²4d ²D° (J = 1/2-3/2 and 3/2-5/2) transition line at 129.92 Å was measured. O VI 1s²2p² P² ? 1s²4s²S² (J = 1/2-1/2 and 3/2-1/2) transition line at 132.26 Å was used to calibrate the sensitivity of the optical system. The dependencies of the degree of polarization on the initial gas density and on the laser polarization were investigated. When the laser polarization was changed from a linear to a circular polarization, the degree of polarization was decreased. When the initial gas density was increased, the degree of polarization was decreased.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. EXPERIMENTAL SETUP
Ⅲ. EXPERIMENTAL RESULTS AND DISCUSSION
Ⅳ. CONCLUSION
ACKNOWLEDGEMENTS
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2009-425-018182585