Femtosecond Laser Matter Interaction

飞秒激光物质相互作用

• 批准号: 238678-2012
• 负责人: Sanderson, Joseph
• 金额: $ 1.82万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=524410
• 关键词: Femtosecond; Laser; Matter; Interaction

The technique of laser induced Coulomb imaging uses the intense field of an ultrashort laser pulse to remove many electrons from a molecule in rapid succession. The molecule is then reduced to its constituent atomic ions which repel each other with electrostatic force and fly apart with energy related to their initial separation. If we can detect all of these ions in coincidence using time and position sensitive detection then it is possible to deduce the initial geometry of the molecule and possibly the dynamics of the molecule during the explosion process. The research program will focus on improving the capabilities of the process by helping us to understanding physics better.

激光诱导库仑成像技术利用超短激光脉冲的强场快速连续地从分子中去除许多电子。然后，分子被还原为其组成的原子离子，这些原子离子在静电力的作用下相互排斥，并带着与它们最初分离相关的能量飞离。如果我们可以用时间和位置敏感检测方法同时检测到所有这些离子，那么就有可能推断出分子的初始几何形状，并可能推断出分子在爆炸过程中的动力学。该研究项目将致力于通过帮助我们更好地理解物理学来提高这一过程的能力。