| 脉冲能量对激光推进中冲量耦合系数的影响 |
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| 引用本文： | 郑义军,谭荣清,柯常军,石海霞,张阔海,王东蕾,刘世明,吴谨,万重怡.脉冲能量对激光推进中冲量耦合系数的影响[J].中国激光,2006,33(12):684-1687. |
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| 作者姓名： | 郑义军 谭荣清 柯常军 石海霞 张阔海 王东蕾 刘世明 吴谨 万重怡 |
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| 作者单位： | 中国科学院电子学研究所,北京,100080 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 实验通过采用最大输出脉冲能量为100J的TEACO2激光器,研究了从13~80J的激光脉冲能量对大气呼吸模式激光推进冲量耦合系数的影响。结果表明当脉冲能量在80~24J变化时,冲量耦合系数没有明显变化,当脉冲能量下降至22J以下时,冲量耦合系数下降52%。对这一特性进行了初步的理论分析,并通过改变实验环境气体压强,对这一理论进行了验证。
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| 关 键 词： | 激光技术 激光推进 激光脉冲能量 冲量耦合系数 |
| 文章编号： | 0258-7025（2006）12-1684-04 |
| 收稿时间： | 2006-05-09 |
| 修稿时间： | 2006-05-29 |
Effects of Laser Pulse Energy on Coupling Coefficient of Laser Propulsion |
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| ZHENG Yi-jun,TAN Rong-qing,KE Chang-jun,SHI Hai-xia,ZHANG Kuo-hai,WANG Dong-lei,LIU Shi-ming,WU Jin,WAN Chong-yi.Effects of Laser Pulse Energy on Coupling Coefficient of Laser Propulsion[J].Chinese Journal of Lasers,2006,33(12):684-1687. |
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| Authors: | ZHENG Yi-jun TAN Rong-qing KE Chang-jun SHI Hai-xia ZHANG Kuo-hai WANG Dong-lei LIU Shi-ming WU Jin WAN Chong-yi |
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| Institution: | Institute of Electronics, The Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | A 100 J TEA CO_2 laser was employed to study the effects of variety of pulse energy from 13 J to 80 J on the momentum coefficient for air-breathing mode. The results indicated that the momentum coupling coefficient (C_m) had no obvious change when the pulse energy decreased from 80 J to 24 J. While the energy was under 22 J, the C_m declined 52%. A preliminary analysis of theory was given, and an experiment of changing the air pressure in the vacuum chamber was carried to verify that. |
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| Keywords: | laser technique laser propulsion laser pulse energy momentum coupling coefficient |
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