Abstract

A laser-induced fluorescence lidar has been developed for detecting the concentration of fluorescent aerosols in the air. The fluorescence lidar was constructed with a pulsed fourth-harmonic Nd:YAG laser at the ultraviolet wavelength of 266 nm with a repetition rate of 10 Hz. A 250 mm diameter custom telescope was used to collect optical spectra ranging from 260 to 560 nm. Fluorescence signals with wavelengths ranging from 310–440 nm were extracted, exploring a filter with a bandwidth of 130 nm. The preliminary experiments were conducted at the campus of Xi’an University of Technology, in which the fluorescence signals of atmospheric fluorescent aerosols were continuously collected from 20:00 to 23:00 CST on 13 December 2017. Based on the fluorescence lidar equation, the density of fluorescence signals was calibrated using Rayleigh–Mie scattering signals and ozone (O3) concentration data at the ground level. Measured ranges show a strong dependence with the O3 concentrations due to its absorption characteristics at ultraviolet 266 nm. Moreover, the concentration of the biogenic particles was also calculated based on the raw data of the fluorescence channel. Obtained results show that the concentration of biogenic particles in the Xi’an area varied greatly, ranging from 3456 particles · m3 to 8835 particles · m3 during winter.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Retrieval of aerosol properties from combined multiwavelength lidar and sunphotometer measurements

Markus Pahlow, Detlef Müller, Matthias Tesche, Heike Eichler, Graham Feingold, Wynn L. Eberhard, and Ya-Fang Cheng
Appl. Opt. 45(28) 7429-7442 (2006)

Determination of stratospheric aerosol microphysical properties from independent extinction and backscattering measurements with a Raman lidar

Ulla Wandinger, Albert Ansmann, Jens Reichardt, and Terry Deshler
Appl. Opt. 34(36) 8315-8329 (1995)

Dustsonde and Lidar Measurements of Stratospheric Aerosols: a Comparison

G. Burton Northam, James M. Rosen, S. Harvey Melfi, T. J. Pepin, M. P. McCormick, D. J. Hofmann, and William H. Fuller
Appl. Opt. 13(10) 2416-2421 (1974)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription