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Investigation of atmospheric pressure air plasma by two-photon laser induced fluorescence

机译:大气压空气等离子体的双光子激光诱导荧光研究

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We have applied two-photon absorption laser-induced fluorescence (TALIF) to investigate Nanosecond Repetitively Pulsed Discharges (NRPD) in air at atmospheric pressure, in a pin-to-pin electrode configuration. TALIF measurements have been performed to characterize the formation of atomic oxygen after the discharge pulse. Atomic oxygen is one of the key species in combustion processes and understanding its formation is important to understand the mechanism of plasma-assisted flame ignition and stabilization. Kinetic models suggest that oxygen is produced via the dissociative quenching of molecular oxygen by the electronically excited nitrogen produced by the pulses. In this paper we present measurements of atomic oxygen that support the proposed mechanism.
机译:我们已经应用了两光子吸收激光诱导的荧光(TALIF),以大气压,针对针电极配置研究了空气中的纳秒级重复脉冲放电(NRPD)。已执行TALIF测量以表征放电脉冲后原子氧的形成。原子氧是燃烧过程中的关键物质之一,了解其形成对了解等离子体辅助火焰着火和稳定的机理很重要。动力学模型表明,氧气是由脉冲产生的电子激发的氮通过分子氧的解离淬灭而产生的。在本文中,我们提出了支持所提出机制的原子氧测量。

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