Bright Laser High-Order Harmonic Generation

明亮的激光高次谐波产生

• 批准号: 0457316
• 负责人: Justin Peatross
• 金额: --
• 依托单位: Brigham Young University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-07-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0457316&HistoricalAwards=false
• 关键词: Bright; Laser; Order; Harmonic; Generation

This experimental research program focuses on the study of phase matching of high-order harmonics generated by intense laser pulses in gas cells. In particular, the group will investigate laser propagation relating to harmonic production in a semi-infinite cell geometry, filled with either neon or helium in the neighborhood of 100 torr. This regime has been found to produce bright directional harmonics up to 100 orders. The emission is dramatically enhanced when an iris is partially closed on the laser beam at the focusing lens. Specially prepared counter-propagating pulses will be used to probe regions of harmonic production within the cell both longitudinally and radially. The broader impact of the program involves student education and applications to polarimetry.

本实验研究计划的重点是研究气体电池中强激光脉冲产生的高次谐波的相位匹配。特别是，该小组将研究与半无限细胞几何形状中的谐波产生有关的激光传播，充满了100 μ m附近的氖或氦。已经发现，该区域产生高达100阶的明亮的方向性谐波。当光圈在聚焦透镜处对激光束部分关闭时，发射显著增强。专门准备的反向传播脉冲将被用来探测区域内的细胞纵向和径向的谐波生产。该计划的更广泛的影响涉及学生教育和旋光测量的应用。