f-value measurement of the Be I resonance line using a nonlinear time-resolved laser-induced-fluorescence technique

2000 ◽  
Vol 61 (6) ◽  
Author(s):  
R. Schnabel ◽  
M. Kock
Keyword(s):  
Resonance Line ◽  
Laser Induced Fluorescence ◽  
Fluorescence Technique ◽  
Time Resolved ◽  
Value Measurement

Single-Molecule Detection by Laser-Induced Fluorescence Technique with a Position-Sensitive Photon-Counting Apparatus

1994 ◽  
Vol 33 (Part 1, No. 3A) ◽  
pp. 1571-1576 ◽  
Author(s):  
Mitsuru Ishikawa ◽  
Ken-ichi Hirano ◽  
Tsuyoshi Hayakawa ◽  
Shigeru Hosoi ◽  
Sydney Brenner
Keyword(s):  
Single Molecule ◽  
Photon Counting ◽  
Laser Induced Fluorescence ◽  
Single Molecule Detection ◽  
Fluorescence Technique ◽  
Position Sensitive

Measurements of the Collisionally Quenched Lifetime of CO in Hydrocarbon Flames

1994 ◽  
Vol 48 (9) ◽  
pp. 1118-1124 ◽  
Author(s):  
Sara Agrup ◽  
Marcus Aldén
Keyword(s):  
Laser Induced Fluorescence ◽  
Polyaromatic Hydrocarbon ◽  
Time Decay ◽  
Collisional Quenching ◽  
Time Resolved ◽  
Hydrocarbon Flames ◽  
Effective Lifetime ◽  
Ethylene Flame ◽  
Oxygen Flame ◽  
Different Parts

Time-resolved laser-induced fluorescence (LIF) from CO molecules in hydrocarbon flames was studied. Collisional quenching constants were evaluated on the basis of the exponential decays. Effective lifetime in a methane/oxygen flame was observed to vary between 250 and 400 ps depending on the position within the flame, and from 400 to 600 ps in the non-sooty parts of an ethylene/air flame. Fluorescence, constituting simultaneous spatially and temporally resolved decays, was also registered from various sections along a laser beam that probed different parts of the flame. Spectral recordings revealed not only the expected CO peaks but also, in the ethylene flame, laser-induced emission from C2 Swan bands and from polyaromatic hydrocarbon (PAH) emission that affected the fluorescence time decay in the sooty part of the flame.

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