TRANSIENT GRATING TIME RESOLVED LUMINESCENCE MEASUREMENTS
    26.
    发明公开
    TRANSIENT GRATING TIME RESOLVED LUMINESCENCE MEASUREMENTS 审中-公开
    TG-ZEITAUFGELÖSTELUMINESZENZMESSUNGEN

    公开(公告)号:EP3105539A4

    公开(公告)日:2017-10-04

    申请号:EP15745852

    申请日:2015-02-05

    申请人: VICTORIA LINK LTD

    摘要: A transient grating (TG) is used as an optical gating element with sub-picosecond time resolution for luminescence measurements from a photo-detector array. The transient grating is formed in a gate medium by one or more pulsed gate beams. For photoluminescence measurements such as photoluminescence spectroscopy or imaging, a source is excited by a pulsed excitation beam, and the pulsed gate beams are synchronized to the pulsed excitation beam with an adjustable delay between the excitation of the source and the formation of the TG. Moreover, a source or its spectra can be imaged at two different regions of the photo-detector array at two different times spaced in time by a selected duration of time with sub-picosecond resolution over a range of a nanosecond or more. A beam from the source is deflected to the different regions by changing the frequency or geometry of the pulsed gate beams.

    摘要翻译: 瞬态光栅(TG)被用作具有亚皮秒时间分辨率的光学门控元件,用于来自光电检测器阵列的发光测量。 瞬态光栅由一个或多个脉冲栅极光束在栅极介质中形成。 对于光致发光测量,例如光致发光光谱或成像,源由脉冲激发光束激发,并且脉冲激光束与源激发和TG形成之间的可调节延迟同步到脉冲激发光束。 此外,源或其光谱可以在两个不同时间在光检测器阵列的两个不同区域成像,所述两个不同时间以纳秒或更大范围内的亚皮秒分辨率选定的持续时间。 通过改变脉冲栅极光束的频率或几何形状,来自光源的光束偏转到不同的区域。