LASER EMISSION DEVICE AND METHOD FOR THE SPECTROSCOPIC ANALYSIS OF A SAMPLE
    7.
    发明申请
    LASER EMISSION DEVICE AND METHOD FOR THE SPECTROSCOPIC ANALYSIS OF A SAMPLE 审中-公开
    激光发射装置和样品的光谱分析方法

    公开(公告)号:US20130271765A1

    公开(公告)日:2013-10-17

    申请号:US13880305

    申请日:2011-10-18

    IPC分类号: G01J3/10 G02F1/35 G02F1/365

    摘要: According to one aspect, the invention relates to a laser emission device for the spectroscopic analysis of a sample, comprising: a primary laser source (401) emitting a pump beam (I5) and an excitation beam (I2), said two beams being pulsed and having a nanosecond or subnanosecond pulse time; a non-linear optical fibre (406) into which the excitation beam is injected in order to form a probe beam (I4) having a wide spectral band; a device (405) for controlling the time profile of either the pump beam or the excitation beam, allowing compensation of the time spreading of the probe beam generated by the non-linear optical fibre, in order to obtain pump and probe beams having similar pulse times; and means (409) for spatially overlaying of the pump and probe beams for the spectroscopic analysis of the sample.

    摘要翻译: 根据一个方面,本发明涉及一种用于样品的光谱分析的激光发射装置,包括:发射泵浦光束(I5)和激发光束(I2)的主激光源(401),所述两个光束是脉冲的 并具有纳秒或亚纳秒脉冲时间; 为了形成具有宽光谱带的探测光束(I4),注入激发光束的非线性光纤(406) 用于控制泵浦光束或激发光束的时间曲线的装置(405),允许补偿由非线性光纤产生的探针光束的时间扩展,以便获得具有类似脉冲的泵浦和探针光束 次 以及用于空间上覆盖泵和探针光束以用于样品的光谱分析的装置(409)。