Instrumentation for measuring fluorescence cross sections from airborne microsized particles.
Instrumentation for measuring fluorescence cross sections from airborne microsized particles.
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DOI：
10.1364/ao.47.000110
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发表时间：
2008-01
期刊：
影响因子：
1.9
通讯作者：
A. Manninen;M. Putkiranta;A. Rostedt;J. Saarela;T. Laurila;M. Marjamäki;J. Keskinen;R. Hernberg
中科院分区：
文献类型：
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作者：
A. Manninen;M. Putkiranta;A. Rostedt;J. Saarela;T. Laurila;M. Marjamäki;J. Keskinen;R. Hernberg
本文介绍了一种测量单个气溶胶粒子激光诱导荧光光谱的实验装置。作为仪器性能的演示，呈现了用喷墨气溶胶发生器产生的掺杂有荧光核黄素的单分散4.7微米氯化钠颗粒的结果。气溶胶颗粒的荧光被激发在从210到419 nm的宽范围内使用脉冲，可调谐光学参量振荡器激光器。在560 nm处检测到单独测量的颗粒的荧光发射的最大值。研究了荧光对激发波长的依赖性，并估算了荧光截面。核黄素的荧光测量数据和文献数据之间的协议进行观察。
An experimental instrument for measuring a laser-induced fluorescence spectrum from a single aerosol particle is described. As a demonstration of instrument capabilities, the results of monodisperse 4.7 microm sodium chloride particles doped with fluorescent riboflavin, produced with an inkjet aerosol generator, are presented. The fluorescence of the aerosol particles is excited in the wide range from 210 to 419 nm using a pulsed, tunable optical parametric oscillator laser. The maximum of the fluorescence emission of separately measured particles is detected at 560 nm. The dependence of the fluorescence on the excitation wavelength is studied and fluorescence cross sections are estimated. Agreement between the measured fluorescence data and the literature data for riboflavin is observed.