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Your search keyword '"Ren, Zhi-Jun"' showing total 8 results
Start Over Author "Ren, Zhi-Jun" Language english Publication Type Academic Journals
8 results on '"Ren, Zhi-Jun"'

6. Wavefront correction of Ti : sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor*.

Author

Yu Liang-Hong, Liang Xiao-Yan, Ren Zhi-Jun, Wang Li, Xu Yi, Lu Xiao-Ming, and Yu Guo-Hao

Subjects
SAPPHIRES, OPTICAL phase conjugation, FOCUSING of deformable mirrors, ADAPTIVE optics, LASER beams, NONLINEAR optics
Abstract

The phase conjugation between the deformable mirror and the wavefront sensor in the aberration correction of a terawatt Ti:sapphire laser is studied experimentally and theoretically in this paper. At varying values of phaseconjugation precision, we focus the corresponding beams into spots of the same size of 5.1 µm × 5.3 µm with a f/4 parabola in the 32 TW/36 fs Ti:sapphire laser system. The results show that the precision of conjugation can induce an intensity modulation but does not significantly affect the wavefront correction. [ABSTRACT FROM AUTHOR]

Published
2012
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7. Effects of PPC and O3 preoxidation on microbiological characteristics of BAC process.

Author

REN Zhi-jun, MA Jun, and ZHANG Jun

Subjects
MICROBIOLOGY, WATER purification, OXIDATION, OZONE, NITRITES, BACTERIA
Abstract

By comparing the effluent quantity and microbiological characteristics in each water treatment process and in BAC process, the effects of PPC and O3 preoxidation on BAC process were studied. The results show that the effluent quantity of biofiher with PPC preoxidation is better than that with ozone preoxidation. Compared with Nrtrosominas in O3-BAC, Nrtrosominas and Nitrosospira are the predominant nitrite bacteria in PPC-BAC process. Nitrobacter and Nitrospina are the predominant nitrate bacteria in both of BAC process. [ABSTRACT FROM AUTHOR]

Published
2009

8. Wavefront correction of Ti : sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor*.

Author

Yu Liang-Hong, Liang Xiao-Yan, Ren Zhi-Jun, Wang Li, Xu Yi, Lu Xiao-Ming, and Yu Guo-Hao

Subjects
*SAPPHIRES, *OPTICAL phase conjugation, *FOCUSING of deformable mirrors, *ADAPTIVE optics, *LASER beams, *NONLINEAR optics
Abstract

The phase conjugation between the deformable mirror and the wavefront sensor in the aberration correction of a terawatt Ti:sapphire laser is studied experimentally and theoretically in this paper. At varying values of phaseconjugation precision, we focus the corresponding beams into spots of the same size of 5.1 µm × 5.3 µm with a f/4 parabola in the 32 TW/36 fs Ti:sapphire laser system. The results show that the precision of conjugation can induce an intensity modulation but does not significantly affect the wavefront correction. [ABSTRACT FROM AUTHOR]

Published
2012
Full Text
View/download PDF

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