利用频率为2450 MHz,功率可调范围为0～600 W的微波源放电激励烷基碘化物C2H2F3I,观测了碘原子1.315 μm发射谱,并分析了微波激励过程中发生的主要动力学过程。不同压力下重复实验,在介质气体压力分别为50 Pa,60 Pa和160 Pa时均观测到了1.315 μm处的波峰输出,这说明通过微波激励C2H2F3I可以产生1.315 μm的发射。此外,还采用放大自发辐射(ASE)法研究了微波激励C2H2F3I条件下1.315 μm发射谱的增益特性。测量小信号增益系数时加入缓冲气体He,在总压力为150Pa(C2H2F3I和He以1:2混合)和微波源功率为400 W时测得微波激励C2H2F3I条件下1.315 μm发射谱的小信号增益系数为1.02% cm-1。

1.315 μm emission spectrum is observed by exciting C2H2F3I with microwave and main dynamic process is analyzed. Under the gas pressures of 50 Pa, 60 Pa, and 160 Pa emission spectra of 1.315 μm have been observed. This result demonstrates that C2H2F3I excited by microwave can generate iodine emission at 1.315 μm. The gain of 1.315 μm emission also has been measured by means of amplification spontaneous emission and the small signal gain coefficient of 1.02%cm-1 has been obtained by adding buffer gas of He at total pressure of 150 Pa and microwave power of 400 W.