物理学报2012，Vol.61Issue(5)：166-173,8.
采用光谱色散平滑和连续相位板实现靶面均匀辐照的实验研究
Experimental research of target uniform illumination using smoothing by spectral dispersion and continuous phase plate
摘要
Abstract
To improve laser irradiation uniformity, experimental research on smoothing by spectral dispersion （SSD） and continuous phase plate （CPP） is carried out on the technical integration line （TIL）. A bulk phase modulator with 9.2 GHz modulation frequency is adopted. The output spectrum of the phase modulator is stable and the residual amplitude modulation is quite small. The experimental results indicate that when the number of color cycles （No） is adopted to be 1, imposing of SSD in this divergence does not lead to pinhole closure in the spatial filters of the preamplifier and main amplifier. The contrast of the focal spot with 95% energy included with SSD and CPP drops to 0.47 compared with 1.71 without SSD and CPP. When the pulse width of the third harmonic wave is 1 ns and its energy is 1115 J, no damage is found in CPP and other final optics. The experiment solves some key techniques by using SSD and CPP on high-power laser facilities, and provides sound basis for the upcoming physics experiment.关键词
光谱色散平滑/连续相位板/靶面均匀辐照Key words
smoothing by spectral dispersion/continuous phase plate/target uniform irradiation分类
数理科学引用本文复制引用
张锐,李平,粟敬钦,王建军,李海,耿远超,梁樾,赵润昌,董军,卢宗贵,周丽丹,刘兰琴,林宏奂,许党朋,邓颖,朱娜,景峰,隋展,张小民..采用光谱色散平滑和连续相位板实现靶面均匀辐照的实验研究[J].物理学报,2012,61(5):166-173,8.基金项目
国家自然科学基金（批准号：60878058）资助的课题. （）
