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    • 2. 发明申请
    • METHOD AND DEVICE FOR SENSING A CARRIER ENVELOPE CHARACTERISTIC OF LASER PULSES, AND APPLICATIONS THEREOF
    • 用于感测激光脉冲的载体包络特性的方法和装置及其应用
    • WO2012065617A1
    • 2012-05-24
    • PCT/EP2010/006990
    • 2010-11-17
    • MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHFTEN E.V.HOMMELHOFF, PeterKRÜGER, MichaelSCHENK, Markus
    • HOMMELHOFF, PeterKRÜGER, MichaelSCHENK, Markus
    • H01S3/13G01J11/00
    • H01S3/1307G01J11/00
    • A method of sensing a carrier envelope characteristic of laser pulses (1) includes the steps of irradiating an electron emitter device (210) with the laser pulses (1), so that electrons are emitted from the electron emitter device (210), detecting an electron current of the emitted electrons using an electron collector device (220), and generating a photoemission signal by the electron collector device (220), wherein the photoemission signal depends on the carrier envelope characteristic of the laser pulses (1), wherein the emitted electrons are subjected to an electrical field barrier ere- ated between the electron emitter device (210) and the electron collector device (220). Furthermore, a sensor device (200) for sensing a carrier envelope characteristic of laser pulses (1) and a pulse laser device (300) including the sensor device (200) are described. The laser pulses are focused on a tungsten tip (211) and between the tip and the electron collector (220) there is a mesh electrode (222) with a bias voltage such that only electrons with an energy above a threshold reach the collector (220) thereby improving sensitivity.
    • 感测激光脉冲(1)的载波包络特性的方法包括以下步骤:用激光脉冲(1)照射电子发射器件(210),从而从电子发射器件(210)发射电子,检测 使用电子收集器件(220)发射的电子的电子电流,以及由所述电子收集器件(220)产生光电发射信号,其中所述光电发射信号取决于所述激光脉冲(1)的载波包络特性, 电子受到在电子发射器件(210)和电子收集器件(220)之间产生的电场屏障。 此外,描述了用于感测激光脉冲(1)的载波包络特性的传感器装置(200)和包括传感器装置(200)的脉冲激光装置(300)。 激光脉冲聚焦在钨尖端(211)上并且在尖端和电子收集器(220)之间,具有偏置电压的网状电极(222),使得仅具有高于阈值的能量的电子到达集电极(220) ),从而提高灵敏度。