| SF_6-UF_6-H_2体系激光光敏反应中红外荧光的研究 |
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| 引用本文： | 何志强,侯惠奇,秦启宗.SF_6-UF_6-H_2体系激光光敏反应中红外荧光的研究[J].中国激光,1987,14(5):279-282. |
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| 作者姓名： | 何志强 侯惠奇 秦启宗 |
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| 作者单位： | 复旦大学激光化学研究室
(何志强，侯惠奇)，复旦大学激光化学研究室(秦启宗) |
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| 摘 要： | 研究了由10.6μm P(24)支线脉冲CO_2激光引发SF_6UF_6-H_2体系红外光敏反应中产生的红外荧光。当体系的组成和激光频率都不变时,由HF产生的荧光信号强度与激光的能量密度呈线性关系,改变体系中UF_6的分压,红外荧光信号的强度和时间特性都发生比较明显的变化。此外,由SF_6-UF_6H_2。体系红外光敏反应的动力学讨论了上述红外荧光的一些特性。
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| 收稿时间： | 1986/2/19 |
Infrared fluorescence from laser induced sensitized reaction of SF6-UF6-H2 system |
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| Abstract: | Infrared fluorescence from the sensitized reaction in SF6-UFS-H3 system induced by 10.6.m P(24) line of a pulsed CO2 laser is investigated. The time resolved IB fluorescence of vibrationally excited HF* is measured with an InSb photovoltic detector and is compared with that from the SF6-H2 system under the similar experimental conditions. Our results show a linear dependence of fluorescence intensity with laser fluence. The time resolved IE fluorescence of HF* is dependent on the partial pressure of UF6, the fluorescence intensity obey the single exponential decay at lower PUIV but non-single exponential decay is observed at higher POT,- The time dependence of the HF* fluorescence intensity is explained with the infrared photo-sensitized reaction mechanism of the 8F6-UFe-H3 system. |
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