Pulsed Chemical Oxygen Iodine Lasers Excited by Pulse Gas Discharge with the Assistance of Surface Sliding Discharge Pre-ionization
LI Guo-Fu1, 2**,YU Hai-Jun1,DUO Li-Ping1,JIN Yu-Qi1,WANG Jian1,SANG Feng-Ting1,WANG De-Zhen2
1Key Laboratory of Chemical Lasers, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 2School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024
Pulsed Chemical Oxygen Iodine Lasers Excited by Pulse Gas Discharge with the Assistance of Surface Sliding Discharge Pre-ionization
LI Guo-Fu1, 2**,YU Hai-Jun1,DUO Li-Ping1,JIN Yu-Qi1,WANG Jian1,SANG Feng-Ting1,WANG De-Zhen2
1Key Laboratory of Chemical Lasers, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 2School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024
摘要Continuous-wave chemical oxygen-iodine lasers (COILs) can be operated in a pulsed operation mode to obtain a higher peak power. The key point is to obtain a uniform and stable glow discharge in the mixture of singlet delta oxygen and iodide. We propose using an electrode system with the assistance of surface sliding pre-ionization to solve the problem of the stable glow discharge with a large aperture. The pre-ionization unit is symmetrically fixed on the plane of the cathode surface. A uniform and stable glow discharge is obtained in a mixture of iodide (such as CH3I) and nitrogen at the specific deposition energy of 4.5 J/L, pressure of 1.99–3.32 kPa, aperture size of 11 cm×10 cm. The electrode system is applied in a pulsed COIL. Laser energy up to 4.4 J is obtained and the specific energy output is 2 J/L.
Abstract：Continuous-wave chemical oxygen-iodine lasers (COILs) can be operated in a pulsed operation mode to obtain a higher peak power. The key point is to obtain a uniform and stable glow discharge in the mixture of singlet delta oxygen and iodide. We propose using an electrode system with the assistance of surface sliding pre-ionization to solve the problem of the stable glow discharge with a large aperture. The pre-ionization unit is symmetrically fixed on the plane of the cathode surface. A uniform and stable glow discharge is obtained in a mixture of iodide (such as CH3I) and nitrogen at the specific deposition energy of 4.5 J/L, pressure of 1.99–3.32 kPa, aperture size of 11 cm×10 cm. The electrode system is applied in a pulsed COIL. Laser energy up to 4.4 J is obtained and the specific energy output is 2 J/L.
LI Guo-Fu,**,YU Hai-Jun,DUO Li-Ping,JIN Yu-Qi,WANG Jian,SANG Feng-Ting,WANG De-Zhen. Pulsed Chemical Oxygen Iodine Lasers Excited by Pulse Gas Discharge with the Assistance of Surface Sliding Discharge Pre-ionization[J]. 中国物理快报, 2012, 29(5): 54212-054212.
LI Guo-Fu,**,YU Hai-Jun,DUO Li-Ping,JIN Yu-Qi,WANG Jian,SANG Feng-Ting,WANG De-Zhen. Pulsed Chemical Oxygen Iodine Lasers Excited by Pulse Gas Discharge with the Assistance of Surface Sliding Discharge Pre-ionization. Chin. Phys. Lett., 2012, 29(5): 54212-054212.
2012, Vol. 29 
