FLUIDS BY MEANS OF A TWO-DYE LASER INDUCED FLUORESCENCE RATIOMETRIC SCHEME: 2D THICKNESS AND TEMPERATURE MAPPING

2017 ◽  
Vol 24 (1-4) ◽  
pp. 347-367
Author(s):  
Carlos H. Hidrovo ◽  
Douglas P. Hart
Keyword(s):  
Laser Induced Fluorescence ◽  
Dye Laser ◽  
Temperature Mapping

scholarly journals Mobile lidar system for environmental monitoring

2018 ◽  
Vol 176 ◽  
pp. 07002
Author(s):  
Guangyu Zhao ◽  
Ming Lian ◽  
Yiyun Li ◽  
Zheng Duan ◽  
Shiming Zhu ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Environmental Monitoring ◽  
Nd:Yag Laser ◽  
Field Experiments ◽  
Laser Induced Fluorescence ◽  
Dye Laser ◽  
Lidar System ◽  
Sensing System ◽  
Atomic Mercury

A versatile mobile remote sensing system for multidisciplinary environmental monitoring tasks on the Chinese scene is described. The system includes a 20 Hz Nd:YAG laser-pumped dye laser, optical transmitting/receiving systems with a 30 cm and a 40 cm Newtonian telescope, and electronics, all integrated in a laboratory, installed on a Jiefang truck. Results from field experiments on atomic mercury DIAL mapping and remote laser-induced fluorescence and break-down spectroscopy are given.

LIF Measurements on the C2Σ+–X2IIr Transitions of the CD Radical

1993 ◽  
Vol 47 (11) ◽  
pp. 1772-1774
Author(s):  
F. Hummernbrum ◽  
H. Kempkens ◽  
A. Ruzicka ◽  
C. Schiffer ◽  
J. Uhlenbusch ◽  
...  
Keyword(s):  
Light Source ◽  
Laser Induced Fluorescence ◽  
Dye Laser ◽  
Vibrational Band ◽  
Spin Splitting ◽  
Doppler Broadening ◽  
Uv Laser ◽  
Small Bandwidth ◽  
Splitting Constant ◽  
Line Positions

Laser-induced fluorescence (LIF) measurements are made on the C2Σ+- X2II r (λ = 314 nm) transition of CD, which is produced by a microwave-excited Ar/CD4 process plasma. The experiment is realized by using a frequency-doubled cw ring dye laser as the tunable light source. Due to the small bandwidth (≈3 MHz) of the exciting UV laser, the exact line positions of spin-doubled rotational lines in the P-branch ( N” = 2 to 5 and N” = 8 to 13) of the first vibrational band ( v’ = v” = 0) could be determined. The resolution is limited only by Doppler broadening, which amounts in our plasma ( T = 450 K) to about 4 GHz. With these new values of line positions, a modified spin-splitting constant of γ = 0.051 ± 0.006 cm−1 is calculated.

Laser induced fluorescence of the 0–6, 1–6, and 0–5 bands of the transition of Bi2

1982 ◽  
Vol 60 (1) ◽  
pp. 73-76 ◽  
Author(s):  
G. Fabre ◽  
J. P. Bacci ◽  
C. Athenour ◽  
R. Stringat ◽  
P. Bernath
Keyword(s):  
Ground State ◽  
Single Mode ◽  
Rotational Constant ◽  
Laser Induced Fluorescence ◽  
Dye Laser ◽  
State Formula ◽  
X State

Analysis of the 0–6, 1–6, and 0–5 bands of the A–X transition of Bi2 with a single-mode, tunable cw dye laser gave the following rotational constant values: A state: [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text]; X state: [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text].The electronic symmetries of the A and X states are confirmed to be [Formula: see text] and [Formula: see text], respectively, supporting the assignment of the X state as the ground state.

scholarly journals Photodissociation of Ozone at 248 nm and Vacuum Ultraviolet Laser-Induced Fluorescence Detection of O(1D)

1998 ◽  
Vol 17 (4) ◽  
pp. 191-203 ◽  
Author(s):  
A. M. Sarwaruddin Chowdhury
Keyword(s):  
Fluorescence Detection ◽  
Vacuum Ultraviolet ◽  
Laser Induced Fluorescence ◽  
Dye Laser ◽  
Probe Laser ◽  
Gas Cell ◽  
Ultraviolet Laser ◽  
Laser Induced Fluorescence Detection ◽  
Krf Laser ◽  
Vacuum Ultraviolet Laser

Ozone molecules, O3, were photodissociated in the presence of N2 at 248 nm (KrF laser) to O(1D)+ O2(1∆). The O(1D) atoms were detected by generating vacuum ultraviolet laser-induced fluorescence (VUV LIF) for the 3s1D0 -2p 1D transition at 115.2 nm. The 115.2 nm probe laser was generated by frequency tripling (ω vuv=3ω) of the 345.6 nm PTP dye laser in a Xe gas cell.

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