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1. 发明申请

WO2009011954A2 LASER SPECTROSCOPY SYSTEM 审中-公开
标题翻译：激光光谱系统
公开(公告)号：WO2009011954A2
公开(公告)日：2009-01-22
申请号：PCT/US2008061809
申请日：2008-04-28
申请人： ALAKA I CONSULTING & ENGINEERI , DOTTERY ED , WATERBURY ROB , STEFANO CHRIS , WALTERS ROY , ROSE JEREMY , VILARDI FRANK
发明人： DOTTERY ED , WATERBURY ROB , STEFANO CHRIS , WALTERS ROY , ROSE JEREMY , VILARDI FRANK
IPC分类号： H01J49/04
CPC分类号： G01N21/65 , G01J3/443 , G01N21/718 , G01N2021/1793 , G01N2021/637 , G01N2021/655
摘要： A spectroscopy system may include a first laser and a second laser. The first laser is triggered to induce a plasma, such as on a surface of a target at a stand-off distance from the target. The second laser stimulates amplified emissions from the plasma that are detected by one or more spectroscopes. The gain induced by the second laser provides for detection of traces of explosives and other substances on surfaces at stand-off distances. For example, a carbon dioxide laser emits a laser beam at a wavelength of 10,600 nanometers that amplifies the detected signal of a YAG laser, such as Nd:YAG or Er: YAG. The YAG laser may be frequency-shifted to eye safe frequencies and may be focused using telescopic optics. The spectroscopy systemss may use the same telescopic optics to collect emissions from the detection surface and may be activated at or just before the peak emission intensity useful for detecting element signatures and intensity ratios from the trace elements in the plasma. Control of mobility, aiming, triggering, detection and focusing may provide a rapid fire, stand-off detection system for traces of explosives and other hazardous substances.
摘要翻译：光谱系统可以包括第一激光器和第二激光器。触发第一激光以诱导等离子体，例如在与目标的隔离距离处的靶的表面上。第二激光器刺激由一个或多个分光镜检测到的等离子体的放大发射。由第二激光器引起的增益提供了在间隔距离处检测表面上的痕迹的爆炸物和其他物质。例如，二氧化碳激光器发射波长为10600纳米的激光束，其放大YAG激光器（例如Nd：YAG或Er：YAG）的检测信号。 YAG激光器可以被频移到眼睛安全频率，并且可以使用伸缩光学器件聚焦。光谱系统可以使用相同的伸缩光学元件来收集来自检测表面的发射，并且可以在峰值发射强度之前或之前激活，用于从等离子体中的微量元素检测元件特征和强度比。控制流动性，瞄准，触发，检测和聚焦可为爆炸物和其他有害物质的痕迹提供快速的消防，对等检测系统。

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