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一、引言脉冲氙灯是一种等离子体辐射源,当它作为激光光泵时,其泵浦效率及寿命直接与氙灯放电等离子体的电特性和光特性有关,而它们又都是氙灯工作参数的函数。对于这种灯的放电过程,早期都是用宏观参量来描述的。近年来,随着固体激光技术的不断深入发展,等人认为描述脉冲氙灯放电等离子体电特性应有以下七个量:瞬时电压V_I;瞬时电流程度i_i;电子浓度n_e;中性原子浓度n_a;电导率σ;电流密度j;放电温度T。其中,前四个量可直接测量,后三个量可由前四个量的测量结果计算得出。这样,就将一些宏观参量与等离子体的微观参量联系起来了。由于激光技术的广泛应用,激光干涉仪成了研究等离子体的有效工具。为研究脉冲氙灯
I. INTRODUCTION Pulsed xenon lamp is a kind of plasma radiation source. When it is used as laser pump, its pumping efficiency and life span are directly related to the electrical and optical characteristics of xenon lamp discharge plasma, and they are also functions of xenon lamp operating parameters . The discharge process for this lamp, the early are used to describe the macro parameters. In recent years, with the continuous development of solid-state laser technology, et al. Think that the description of discharge xenon lamp plasma electrical properties should have the following seven quantities: instantaneous voltage V_I; instantaneous current i_i; electron concentration n_e; neutral atom concentration n_a; Conductivity σ; current density j; discharge temperature T Among them, the first four quantities can be directly measured, the latter three quantities can be calculated from the measurement results of the first four quantities. In this way, some macroscopic parameters are related to the microscopic parameters of the plasma. Due to the wide application of laser technology, laser interferometer has become an effective tool for studying plasma. For research pulsed xenon lamp