非链式脉冲HF激光器激光介质净化技术
|
摘要
反应产物基态HF分子对激态HF分子的碰撞弛豫是导致非链式脉冲HF激光器激光能量快速下降的重要原因.为解决该问题,理论分析了3A型分子筛去除基态HF分子的可行性,并开展了实验研究.实验结果表明,在不采用任何激光介质净化技术情况下,激光器重复频率50 Hz出光20s的激光能量下降率高达52%,无法满足高功率重频HF/DF激光器的应用需求.在激光器循环管道中增加3A型分子筛吸附单元之后,激光器连续10余次重复频率50 Hz出光20s的激光能量下降率小于15%,其中首次出光能量下降率仅为7.2%,提高了激光能量稳定性且延长了激光介质使用寿命.3A型分子筛不仅对基态HF分子具有良好吸附效果,而且具有再生活化功能,有望取代非链式脉冲HF激光器激光介质净化技术中常用的化学吸附法.
The collision relaxation of reaction products ground state to the excited state HF molecules is the key reason to reduce the non-chain pulsed HF laser energy.To solve this problem,the possibility of3 Atype molecular sieve to eliminate the ground state HF molecules was analysised,and the experimental research was started as well.The result shows that,in the condition of non-utilization of any laser medium purity technology,the laser energy decreased by 52% after 103 laser shots is obtained at a pulse repetition rate of 50 Hz.So it can not satisfy the demand of high power,high repetitive frequency HF/DF laser in the future.After adding the 3Atype molecular sieve adsorptive unit in the circulating pipe,the laser energy reduction is less than 15% after 103 laser shots is obtained for more than ten times,and the initial laser energy decreased by only 7.2%,this improves the stability of laser energy,and the useful time of laser medium.The 3Atype molecular sieve is not only good at adsorb the ground state HF molecules,but also has the ability of regeneration and activation,it is expected to replace the ordinary chemical adsorption method.
The collision relaxation of reaction products ground state to the excited state HF molecules is the key reason to reduce the non-chain pulsed HF laser energy.To solve this problem,the possibility of3 Atype molecular sieve to eliminate the ground state HF molecules was analysised,and the experimental research was started as well.The result shows that,in the condition of non-utilization of any laser medium purity technology,the laser energy decreased by 52% after 103 laser shots is obtained at a pulse repetition rate of 50 Hz.So it can not satisfy the demand of high power,high repetitive frequency HF/DF laser in the future.After adding the 3Atype molecular sieve adsorptive unit in the circulating pipe,the laser energy reduction is less than 15% after 103 laser shots is obtained for more than ten times,and the initial laser energy decreased by only 7.2%,this improves the stability of laser energy,and the useful time of laser medium.The 3Atype molecular sieve is not only good at adsorb the ground state HF molecules,but also has the ability of regeneration and activation,it is expected to replace the ordinary chemical adsorption method.
引文
[1]YI Ai-ping,LIU Jing-ru,TANG Ying,et al.Electrically initiated repetitive-pulsed non-chain HF laser[J].Optics and Precision Engineering,2011,19(2):360-366.易爱平,刘晶儒,唐影,等.电激励重复频率非链式HF激光器[J].光学精密工程,2011,19(2):360-366.
[2]BAO Mei-fang,QIAN Zhi-yu,LI Wei-tao,et al.Biological tissue′s temperature field during the laser-induced interstitial thermotherapy[J].Acta Photonica Sinica,2011,40(5):718-721.包美芳,钱志余,李韪韬,等.激光诱导间质热疗中生物组织的温度场研究[J].光子学报,2011,40(5):718-721.
[3]HUANG Ke,YI Ai-ping,YU Li,et al.Discharge characteristics of SF6/C2H6 working mixture in electricinitiated pulsed HF laser[J].High Power Laser and Particle Beams,2010,22(10):2353-2357.黄珂,易爱平,于力,等.电激励脉冲HF激光SF6/C2H6工作气体的放电特性[J].强激光与粒子束,2010,22(10):2353-2357.
[4]RUDKO R I,DROZDOWICZ Z,LINHARES S.Highrepetition rate recirculating DF/HF laser[J].Review of Scientific Instruments,1982,53:452-457.
[5]BRUNET H,MABBU M,VOIGNIER F.High energy,high average power pulsed HF/DF chemical laser[C].SPIE,1995,2502:388-392.
[6]KE Chang-jun,ZHANG Kuo-hai,SUN Ke,et al.A periodically pulsed HF/DF gas discharge laser[J],Infrared and Laser Engineering,2007,36(suppl.):36-38.柯长军,张阔海,孙科,等.重复频率放电引发的脉冲HF(DF)激光器[J].红外与激光工程,2007,36(增刊.):36-38.
[7]ZHOU Song-qing,MA Lian-ying,HUANG Ke,et al.Experimental investigation on influence factors of output energy stability of non-chain HF laser[J].High Power Laser and Particle Beams,2015,27(9):091001.周松青,马连英,黄珂,等.非链式HF激光器能量稳定性影响因素实验研究[J].强激光与粒子束,2015,27(9):091001.
[8]WANG Jin-qu,YANG Jian-hua,LI Hua-zheng,et al.Advance in zeolite membrance research[J].Membrane Science and Technology,2014,34(3):1-7.王金渠,杨建华,李华征,等.沸石分子筛膜研究进展[J].膜科学与技术,2014,34(3):1-7.
[9]MA lian-ying,ZHOU Song-qing,HUANG Chao,et al.Molecular sieve separation of ground state hf molecules in a non-chain HF laser[C].SPIE,9543.
[10]LUO Cong,LI Dian-jun,ZHANG Lai-ming,et al.Simulation of the ultraviolet pre-ionization in the mixture gas of non-chain HF laser[J].Infrared and Laser Engineering,2012,41(8):2017-2022.骆聪,李殿军,张来明,等.非链式HF激光器紫外预电离的数值模拟[J].红外与激光工程,2012,41(8):2017-2022.
[11]LIU Lin-jiao,FENG Yue-fei,CHEN Zhi-hua,et al.Study on the adsorption of cyclic olefin from aromatic over molecular sieves[J].Chemical Industry and Engineering Progress,2014,33(10):2552-2556.刘林娇,郭月飞,陈志华,等.分子筛吸附脱除芳烃中的环状烯烃[J].化工进展,2014,33(10):2552-2556.
[12]FENG Guo-bin,ZHANG Jian-min,YANG Peng-ling,et al.Responsivity variation with temperature of uncooled midinfrared HgCdTe photoconductive detector[J].Acta Photonica Sinica,2013,42(7):787-791.冯国斌,张检民,杨鹏翎,等.室温中红外HgCdTe光导探测器响应率的温度特性[J].光子学报,2013,42(7):787-791.
[2]BAO Mei-fang,QIAN Zhi-yu,LI Wei-tao,et al.Biological tissue′s temperature field during the laser-induced interstitial thermotherapy[J].Acta Photonica Sinica,2011,40(5):718-721.包美芳,钱志余,李韪韬,等.激光诱导间质热疗中生物组织的温度场研究[J].光子学报,2011,40(5):718-721.
[3]HUANG Ke,YI Ai-ping,YU Li,et al.Discharge characteristics of SF6/C2H6 working mixture in electricinitiated pulsed HF laser[J].High Power Laser and Particle Beams,2010,22(10):2353-2357.黄珂,易爱平,于力,等.电激励脉冲HF激光SF6/C2H6工作气体的放电特性[J].强激光与粒子束,2010,22(10):2353-2357.
[4]RUDKO R I,DROZDOWICZ Z,LINHARES S.Highrepetition rate recirculating DF/HF laser[J].Review of Scientific Instruments,1982,53:452-457.
[5]BRUNET H,MABBU M,VOIGNIER F.High energy,high average power pulsed HF/DF chemical laser[C].SPIE,1995,2502:388-392.
[6]KE Chang-jun,ZHANG Kuo-hai,SUN Ke,et al.A periodically pulsed HF/DF gas discharge laser[J],Infrared and Laser Engineering,2007,36(suppl.):36-38.柯长军,张阔海,孙科,等.重复频率放电引发的脉冲HF(DF)激光器[J].红外与激光工程,2007,36(增刊.):36-38.
[7]ZHOU Song-qing,MA Lian-ying,HUANG Ke,et al.Experimental investigation on influence factors of output energy stability of non-chain HF laser[J].High Power Laser and Particle Beams,2015,27(9):091001.周松青,马连英,黄珂,等.非链式HF激光器能量稳定性影响因素实验研究[J].强激光与粒子束,2015,27(9):091001.
[8]WANG Jin-qu,YANG Jian-hua,LI Hua-zheng,et al.Advance in zeolite membrance research[J].Membrane Science and Technology,2014,34(3):1-7.王金渠,杨建华,李华征,等.沸石分子筛膜研究进展[J].膜科学与技术,2014,34(3):1-7.
[9]MA lian-ying,ZHOU Song-qing,HUANG Chao,et al.Molecular sieve separation of ground state hf molecules in a non-chain HF laser[C].SPIE,9543.
[10]LUO Cong,LI Dian-jun,ZHANG Lai-ming,et al.Simulation of the ultraviolet pre-ionization in the mixture gas of non-chain HF laser[J].Infrared and Laser Engineering,2012,41(8):2017-2022.骆聪,李殿军,张来明,等.非链式HF激光器紫外预电离的数值模拟[J].红外与激光工程,2012,41(8):2017-2022.
[11]LIU Lin-jiao,FENG Yue-fei,CHEN Zhi-hua,et al.Study on the adsorption of cyclic olefin from aromatic over molecular sieves[J].Chemical Industry and Engineering Progress,2014,33(10):2552-2556.刘林娇,郭月飞,陈志华,等.分子筛吸附脱除芳烃中的环状烯烃[J].化工进展,2014,33(10):2552-2556.
[12]FENG Guo-bin,ZHANG Jian-min,YANG Peng-ling,et al.Responsivity variation with temperature of uncooled midinfrared HgCdTe photoconductive detector[J].Acta Photonica Sinica,2013,42(7):787-791.冯国斌,张检民,杨鹏翎,等.室温中红外HgCdTe光导探测器响应率的温度特性[J].光子学报,2013,42(7):787-791.