转镜扫描测量超音速氧碘化学激光器二维增益分布

 首次用二维多面体扫描镜测量了超音速氧碘化学激光器的二维增益分布,测得增益区沿气流方向较长,沿光腔高度方向靠近壁面的两侧存在明显的边界层效应,并且边界层的厚度随着远离喷管出口平面距离的增大而增加。     

转镜扫描测量超音速氧碘化学激光器二维增益分布

首次用二维多面体扫描镜测量了超音速氧碘化学激光器的二维增益分布，测得增益区沿气流方向较长，沿光腔高度方向靠近壁面的两侧存在明显的边界层效应，并且边界层的厚度随着远离喷管出口平面距离的增大而增加。     

微波放电解离氯分子解离效率的测量

 以Cl/Cl₂/HN₃/He为基础的NCl(a¹Δ)/I作为一种化学激光新的体系，氯原子产生的多少对该体系的研究是至关重要的。利用滴定法研究了微波解离氯分子的解离效率。用HN₃/He滴定Cl，由光学多通道分析仪监测NCl(a¹Δ)和NCl(b¹Σ)辐射的荧光。发现微波解离氯分子的效率并不是想象的那样低，在较小的氯流量下，最高的解离效率可以达到100％。     

Experimental study on the system of Cl/Cl_2/He/HN_3/I_2

Using a microwave generator, chlorine diluted by helium was dissociated to chlorine atoms that subsequently reacted with hydrogen azide to produce the excited states of NCl(a1△). Meanwhile, molecular iodine with carrier gas of helium reacted with atomic chlorine to produce atomic iodine which then was pumped to excited state of I(2P1/2) by an energy transfer reaction from NCl(a1△). In this paper, the changes of NCl(a1△) and NCl(b1∑) emission intensity is presented when I2/He is introduced into the stream of Cl/Cl2/He/HN3/NCl(a1△)/NCl(b1∑). The dependences of atomic iodine I(2P1/2) on flow rates of gases were also investigated. The optimum parameters for I(2P1/2) production are given.     

氧碘化学激光器增益谱线的精细结构及腔内温度

 采用可调谐二极管激光器做探测光源,测量了超音速氧碘化学激光器增益谱线的精细结构,得到了各谱线相对强度的百分比。同时也推得了增益线宽与腔内温度。