Photofragmentation laser-induced fluorescence of ozone using narrowband and broadband KrF excimer lasers

Photofragmentation laser-induced fluorescence of ozone using narrowband and broadband KrF excimer lasers
复制标题

使用窄带和宽带 KrF 准分子激光器进行光碎裂激光诱导臭氧荧光

DOI:
10.1088/1361-6463/aaec44
复制
发表时间:
2018
期刊:
Journal of Physics D: Applied Physics
影响因子:
--
通讯作者:
Zhang Xiang
Zhang Xiang
中科院分区:
--
文献类型:
--
作者:
Ono Ryo;Nakamura Takuya;Zhang Xiang

文献摘要

参考文献

相似文献

光碎裂激光诱导荧光(PF-LIF)用于臭氧浓度的高灵敏度测量;然而,其理论基础尚不完善。在本文中,使用可调谐KrF准分子激光器(248-249 nm)的O 3 PF-LIF通过测量和计算进行了检查,为该测量方法提供了理论基础。 KrF 激光光解 O 3 产生 O,然后使用 LIF 使用与光解臭氧相同的激光脉冲进行测量。包括光化学反应和 O 的 LIF 模型在内的计算很好地再现了测量结果,证明了计算的可靠性。考虑到激光光解对臭氧的消耗和 LIF 的饱和,建议的激光能量密度为 100–400 mJ cm−2。还证明了宽带 KrF 准分子激光器(其线未变窄,因此不可调谐)也可用于 O 3 PF-LIF。宽带PF-LIF的信号强度仅降低至窄带PF-LIF的1/2~1/3。
Photofragmentation laser-induced fluorescence (PF-LIF) is used for the high-sensitivity measurement of ozone density; however, its theoretical basis is not well established. In this paper, O 3 PF-LIF, using a tunable KrF excimer laser (248–249 nm), was examined using both measurements and calculations to provide a theoretical basis for this measurement method. The KrF laser photolyzed O 3 to produce O, which was then measured using LIF with the same laser pulse that had photolyzed the ozone. A calculation including photochemical reactions and a LIF model of O reproduced the measured results well which demonstrated the reliability of the calculation. A recommended laser energy density of 100–400 mJ cm− 2 was obtained by considering the depletion of ozone by the laser photolysis and the saturation of the LIF. It was also demonstrated that a broadband KrF excimer laser, which is not line narrowed and therefore not tunable, could also be used for O 3 PF-LIF. The signal intensity of the broadband PF-LIF was only reduced to 1/2–1/3 of the narrowband PF-LIF.
使用 KrF 激光诱导 O(2) 荧光的单脉冲、两线温度测量技术。
DOI: 10.1364/ao.34.005501
发表时间: 1995
期刊: Applied optics
影响因子: 1.9
作者:
J. Grinstead;G. Laufer;J. McDaniel
通讯作者: J. McDaniel
臭氧发生器中臭氧形成速率的测量
DOI: 10.1051/jcp/1982790655
发表时间: 1982
期刊: Journal of Computers
影响因子: --
作者:
H. Sugimitsu;S. Okazaki
通讯作者: S. Okazaki
248 nm 臭氧光解后 O2(X 3Σg−, v‘=9、12 和 15) 的旋转种群分布
DOI: --
发表时间: 1993
期刊:
影响因子: --
作者:
M. Daniels;J. Wiesenfeld
通讯作者: J. Wiesenfeld
激光探测对流层OH中臭氧干扰效应的光化学模型
DOI: 10.1029/jd095id10p16427
发表时间: 1990
影响因子: --
作者:
Gregory P Smith;D. Crosley
通讯作者: D. Crosley
O2(X,v=8–22) O2 和 N2 的 300 K 淬灭速率系数,以及来自 248 nm O3 光解的 O2(x) 振动分布
DOI: --
发表时间: 1994
期刊:
影响因子: --
作者:
H. Park;T. Slanger
通讯作者: T. Slanger