[1] [1] G. C. Montanari,G. Mazzanti,F. Palmieri et al.. Space-charge trapping and conduction in LDPE,HDPE and XLPE[J]. J. Phys.D:Appl. Phys.,2001,34(18):2092-2911

[2] [2] H. Von Seggern. Isothermal and thermally stimulated current studies of positively corona charged polyfluoroe thylenepropylene (Teflon FEP)[J]. J. Appl. Phys.,1981,52(6):4081-4085

[3] [3] T. Oda,K. Yamashita,R. Ono. Surface charge behaviour of corona-charged thin polymer films-simultaneous LIPP and TSDC measurement[J]. J. Phys.:Conf. Ser.,2008,142(1):1-4

[4] [4] M. Ieda,T. Mizutani,Y. Suzuoki. TSC and TL studies of carrier trapping in insulating polymers[J]. Memoirs of the Faculty of Engineering,Nagoya University,1980,32(2):173-219

[5] [5] R. Chen,Y. Kirsh. Analysis of Thermally Stimulated Processes[M]. Oxford:Pergamon press,1981. 60-78

[6] [6] A. Mellinger,F. C. Gonzalez,R. Gerhard-Multhaupt. Photostimulated discharge in electret polymers:an alternative approach for investigating deep traps[J]. IEEE T. Dielect. El. In.,2004,11(2):218-226

[7] [7] T. Oda,T. Utsumi,T Kumano et al.. Observation of photo-stimulated detrapping currents of FEP teflon electrets[C]. 5th International Symposium on Electrets,1985,288-293

[8] [8] Wang Yong. Study on nanosecond optical parametric oscillator and its applications[D]. Chengdu:University of Electronic Science and Technology of China,2006. 31-41

[9] [9] Wang Yanging,Li Xian,Zhou Xugui et al.. Experimental research of cascading nonlinear effect in BBO crystal[J]. Acta Optica Sinica,2008,28(9):1761-1766

[10] [10] Shao Min,Xue Shaolin,Zhu Pengfei et al.. Theoretical analysis of type-II phase matching optical parametric amplification in BBO crystal[J]. Chinese J. Lasers,2004,31(9):1055-1060

[11] [11] Hu Minyuan,Liang Xiaoyan,Zhao Baozhen et al.. Theoretical investigation on broad band semi-noncollinear optical parametric amplification in periodically poled lithium niobate[J]. Acta Optica Sinica,2008,28(1):146-150