公开(公告)号：US3793579A

公开(公告)日：1974-02-19

申请号：US3793579D

申请日：1972-06-02

Applicant: US ARMY

Inventor： CASON C ,  PERKINS J

IPC: H01S3/11 ,  H01S3/22

CPC classification number: H01S3/121

Abstract: A spectrometer is provided for directly obtaining the autoionization energy levels within a gas laser and for observing decay probabilities to lower stable energy levels. A laser cavity is periodically interrupted by a rotating chopper wheel. Simultaneously, a probe within the laser plasma is continuously scanned across a ramp potential for attracting or repelling electrons in the plasma ground state. The laser energy in the autoionization state which varies with the chopper wheel rate is sensed by the probe circuit, isolated, amplified, and ultimately recorded as a scalar function of the modulation voltage input. Thus, the population density of the autoionization energy levels for various laser energy levels is obtainable across the frequency range of the chopper wheel.

Abstract translation: 提供了一种用于直接获得气体激光器内的自动电离能级并且用于观察衰减概率以降低稳定能级的光谱仪。 激光腔被旋转的斩波轮周期性地中断。 同时，激光等离子体内的探针连续扫描跨越斜坡电位，以在等离子体基态中吸引或排斥电子。 在自动电离状态下以斩波轮速度变化的激光能量由探头电路感测，被隔离，放大并最终记录为调制电压输入的标量函数。 因此，可以在斩波轮的频率范围内获得各种激光能级的自动电离能级的种群密度。