Inductively Heated Air Plasma Flow Characterization with Laser-Induced Fluorescence Measurements

2009 ◽  
Vol 23 (1) ◽  
pp. 208-210 ◽  
Author(s):  
Stefan Löhle ◽  
Monika Auweter-Kurtz
Keyword(s):  
Plasma Flow ◽  
Laser Induced Fluorescence ◽  
Air Plasma ◽  
Fluorescence Measurements ◽  
Heated Air ◽  
Flow Characterization

Two-Photon Laser-Induced Fluorescence Measurements of Atomic Oxygen Density in Hypersonic Plasma Flow

2019 ◽  
Vol 33 (2) ◽  
pp. 292-299 ◽  
Author(s):  
G. Ceglia ◽  
A. Del Vecchio ◽  
U. Koch ◽  
B. Esser ◽  
A. Guelhan
Keyword(s):  
Plasma Flow ◽  
Atomic Oxygen ◽  
Laser Induced Fluorescence ◽  
Two Photon ◽  
Fluorescence Measurements

Spectroscopic Measurement of Air Plasma Flow Generated by 10kW Class ICP Heater

2019 ◽  
Vol 67 (2) ◽  
pp. 42-48
Author(s):  
Mayuko Tanaka ◽  
Kazuhiko Yamada ◽  
Yusuke Takahashi ◽  
Minghao Yu ◽  
Asei Tezuka
Keyword(s):  
Plasma Flow ◽  
Spectroscopic Measurement ◽  
Air Plasma

Monitoring of cold and light stress impact on photosynthesis by using the laser induced fluorescence transient (LIFT) approach

2010 ◽  
Vol 37 (5) ◽  
pp. 395 ◽  
Author(s):  
Roland Pieruschka ◽  
Denis Klimov ◽  
Zbigniew S. Kolber ◽  
Joseph A. Berry
Keyword(s):  
Photosynthetic Efficiency ◽  
Light Stress ◽  
Pulse Amplitude ◽  
Laser Induced Fluorescence ◽  
High Light Intensity ◽  
High Light ◽  
Persea Americana ◽  
Effective Quantum Yield ◽  
Fluorescence Transient ◽  
Fluorescence Measurements

Chlorophyll fluorescence measurements have been widely applied to quantify the photosynthetic efficiency of plants non-destructively. The most commonly used pulse amplitude modulated (PAM) technique provides a saturating light pulse, which is not practical at the canopy scale. We report here on a recently developed technique, laser induced fluorescence transient (LIFT), which is capable of remotely measuring the photosynthetic efficiency of selected leaves at a distance of up to 50 m. The LIFT approach correlated well with gas exchange measurements under laboratory conditions and was tested in a field experiment monitoring the combined effect of low temperatures and high light intensity on a variety of plants during the early winter in California. We observed a reduction in maximum and effective quantum yield in electron transport for Capsicum annuum L., Lycopersicon esculentum L. and Persea americana Mill. as the temperatures fell, while a grass community was not affected by combined low temperature and high light stress. The ability to make continuous, automatic and remote measurements of the photosynthetic efficiency of leaves with the LIFT system provides a new approach for studying and monitoring of stress effects on the canopy scale.

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