資料載入中.....
|
請使用永久網址來引用或連結此文件:
https://ir.lib.ncu.edu.tw/handle/987654321/103918
|
| 題名: | A 110-TW multiple-beam laser system with a 5-TW wavelength-tunable auxiliary beam for versatile control of laser-plasma interaction |
| 作者: | 陳賜原;Hung, Te-Sheng;Yang, Chi-Hsiang;Wang, Jyhpyng;Chen, Szu-yuan;Lin, Jiunn-Yuan;Chu, Hsu-hsin |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | Amplification;Beams (radiation);Control systems;Engineering;Fluctuation;Laser beams;Lasers;Optical Devices;Optics;Photonics;Physical Chemistry;Physics;Physics and Astronomy;Quantum Optics;Spots;Wavelengths |
| 日期: | 2014-01-01 |
| 上傳時間: | 2026-04-23 11:39:54 (UTC+8) |
| 出版者: | Berlin/Heidelberg: Springer Berlin Heidelberg |
| 摘要: | 摘要： A Ti:sapphire laser system has been constructed with two synchronized main beams of 110 TW and 13 TW, and a 5-TW wavelength-tunable synchronized auxiliary beam for versatile control of laser-plasma interaction. The first main beam provides 3.3-J, 30-fs, 810-nm pulses, and the second 450-mJ, 34-fs, 805-nm pulses. The auxiliary beam comes from amplified spectral windows selected from a supercontinuum of high spatial coherence and provides 38-fs pulses with tunable wavelengths (870–920 nm). The two main beams can be focused down to M 2 = 1.2 and 1.1, with 77 and 81 % energy enclosed in the focal spots, respectively. The energy fluctuations are 1.1 and 1.8 %, and the pointing fluctuations are 4.5 and 4.8 μrad, respectively. By using a preamplifier and saturable absorber before the pulse stretcher to suppress amplified spontaneous emission, the temporal contrast of the 110-TW main beam reaches 4 × 10 - 10 at the −100-ps timescale. Even though the auxiliary beam is generated from a highly nonlinear process, by confining the supercontinuum generation in a single self-trapping filament, a spatial coherence close to the main beams can be achieved. It can be focused down to M 2 = 1.3, with 72 % energy enclosed in the focal spot. The energy fluctuation is 2.6 %, and the pointing fluctuation is 4.7 μrad. The versatility of synchronized multiple-beams with tunable wavelengths, good energy and pointing stability, and the spatiotemporal quality of the laser system has been essential to our experiments in high-harmonic generation, extreme-UV lasers, and laser-wakefield accelerators in which precision control of laser-plasma interaction is facilitated by a concerted sequence of driving pulses.
其他題名： Appl. Phys. B
出版者： Berlin/Heidelberg: Springer Berlin Heidelberg
出版日期： 2014-12-01
出處： Applied physics. B, Lasers and optics, 2014-12, Vol.117 (4), p.1189-1200
資源來源： EBSCOhost Academic Search Premier
版權： Springer-Verlag Berlin Heidelberg 2014
識別號： ISSN: 0946-2171
識別號： EISSN: 1432-0649
識別號： DOI: 10.1007/s00340-014-5943-6 |
| 顯示於類別: | [物理學系] 期刊論文
|
文件中的檔案:
| 檔案 |
描述 |
大小 | 格式 | 瀏覽次數 |
|---|
| index.html | | 0Kb | HTML | 12 | 檢視/開啟 |
|
在NCUIR中所有的資料項目都受到原著作權保護.
|
