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METHOD FOR MEASURING THE SIZE OF A NANO-PARTICLE USING THE FREQUENCY DISTRIBUTION CURVE OF PROBE-BEAM DEFLECTION SIGNAL MAGNITUDE, WHICH IS GENERATED FROM LASER-INDUCED BREAKDOWN
METHOD FOR MEASURING THE SIZE OF A NANO-PARTICLE USING THE FREQUENCY DISTRIBUTION CURVE OF PROBE-BEAM DEFLECTION SIGNAL MAGNITUDE, WHICH IS GENERATED FROM LASER-INDUCED BREAKDOWN
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机译:利用激光诱导击穿产生的探针束偏转信号幅度的频率分布曲线测量纳米粒子尺寸的方法
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摘要
PURPOSE: A method for measuring the size of a nano-particle is provided to obtain a normal distribution curve with a Gaussian function shape which is related to the data of a measured probe-beam deflection signal magnitude.;CONSTITUTION: A sample cell(10) generates a laser-induced plasma by radiating pulsed laser beam(1') to a Z-axis direction. Probe beam(13') is radiated to a Y-axis direction. The signal of the probe beam is measured by a photo diode(19). The focus location of the pulsed laser beam is adjusted for overlapping two signals which is reached to the probe beam. A symmetrical frequency distribution of the probe beam signal magnitude is obtained by a gate integrator(22).;COPYRIGHT KIPO 2010
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