Photolysis/Electrical Discharge Initiated Pulsed Chemical Oxygen-Iodine Lasers Using Alkyl Iodides As The Iodine Source

Rongyao Zhang; Fang Chen; Xueqin Song; Qingzhou Xu; Changqing Huan; Qi Zhuang; Cunhao Zhang

doi:10.1117/12.950537

20 June 1989 Photolysis/Electrical Discharge Initiated Pulsed Chemical Oxygen-Iodine Lasers Using Alkyl Iodides As The Iodine Source

Rongyao Zhang, Fang Chen, Xueqin Song, Qingzhou Xu, Changqing Huan, Qi Zhuang, Cunhao Zhang

Author Affiliations +

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950537
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

Abstract

A photolyzed 02(1Δ)-CH3I-N2 mixture was made to lase with an output energy of over 160 mJ per pulse. The utilization efficiency of the stored 02(1Δ) energy attains 12%. The evidence provided by our experiments confirms that the major contribution to the laser energy comes from the energy transferred from 02(1Δ) to the iodine atom. A comparison between 02(1Δ)-CH3I-N2 and 02(1Δ)-CF3I-N2 mixtures suggests that the laser performance is strongly affected by the molecular species of the iodides and the former exceeds the latter in many respects. It is also shown that N2 is as good a buffer gas as Ar in the pulsed chemical oxygen-iodine laser with respect to laser output. The paper also demonstrates for the first time the feasibility of an electrically initiated pulsed oxygen-iodine laser. It is confirmed that the reactions of the oxygen-iodine laser can be efficiently initiated by using low energy electrons. The electrical efficiency is 350 times higher than that obtained with iodide photolysis.

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Rongyao Zhang, Fang Chen, Xueqin Song, Qingzhou Xu, Changqing Huan, Qi Zhuang, and Cunhao Zhang "Photolysis/Electrical Discharge Initiated Pulsed Chemical Oxygen-Iodine Lasers Using Alkyl Iodides As The Iodine Source", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950537

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