[1] Lin Yikun, Qiu Bingsheng. Theexchange and the optimum length of the sample tube of OPFIRL. Int. J. IR &MMW, 1987,8(6): 673～689
[2] Luo Xizhang, Zhou Jianxun, Qiu Bingsheng et al. A very short optically pumped FIRsuperradiant laser. Int. J. IR &MMW, 1989, 10(2): 237～249
[3] Qin Jiayin, Zheng Xingshi, Luo Xizhang et al. Study on spectral characteristics andoperating parameters of optically pumped NH3 FIR cavity laser. IEEE J. Quantum Electron.,1998, 34(1): 32～39
