laser-induced fluorescence measurements
Laser induced fluorescence measurements of spheromak plasmas
... the laser exits the vacuum chamber via a window on the opposite side of the ...LIF measurements described in Section 4.5. The laser travels ~9 m between the two inter- sections with the plasma; the ...
136
Measurements of a potential interference with laser-induced fluorescence measurements of ambient OH from the ozonolysis of biogenic alkenes
... that laser-generated OH was not occurring within this instrument and was not the source of the interfer- ence, experiments were conducted over a wide range of laser powers ...on laser power ...
16
An Investigation of the Krypton Laser-Induced Fluorescence Spectral Lineshape for Composition-Independent Thermometry Applied to Combustion Environments.
... accurate measurements of temperature in sooting flames in the range of 800 – 2600K ...simultaneous measurements of mixture fraction and soot volume fraction in turbulent non-premixed flames ...triggered ...
200
Simulating solar induced chlorophyll fluorescence in a boreal forest stand reconstructed from terrestrial laser scanning measurements
... far-red fluorescence will increase with chlorophyll ...red fluorescence is larger relative to the increase in SIF emission by enlarged absorption of photosynthetically active ...red fluorescence, ...
15
Laser-induced fluorescence imaging in free-piston shock tunnels
... The fluorescence-signal equation simplifies in the limits of high and low laser ir- ...the fluorescence signal varies linearly with laser irradiance and allows easy interpretation of ...
168
Total Peroxy Nitrates ( PNs) in the atmosphere: the Thermal Dissociation-Laser Induced Fluorescence (TD-LIF) technique and comparisons to speciated PAN measurements
... each 127 cm tall and 64 cm deep. Total weight was approxi- mately 270 kg and power consumption was about 2 kW. The inlet was machined from PFA Teflon following the design of Ryerson, et al. (1999). Pinholes just prior to ...
15
Intercomparison of Hantzsch and fiber-laser-induced-fluorescence formaldehyde measurements
... fiber laser-induced fluorescence (FILIF), were deployed at the atmospheric simulation cham- ber SAPHIR (Simulation of Atmospheric PHotochemistry In a large Reaction Chamber) to compare the ...
10
Improvement of A Non-Intrusive Method of Planar Laser- Induced Fluorescence Heat Transfer (PLIF) Measurement in the Immediate Proximity of A Boiling Bubble During Formation
... the fluorescence is determined from the value attributed to each pixel on the image captured by the dalsa falcon ...These measurements then make it possible to obtain a curve of the intensity as a function ...
7
A flow-tube based laser-induced fluorescence instrument to measure OH reactivity in the troposphere
... the fluorescence cell sampling point, which ensures that the gas from the injector is well mixed into the main gas flow prior to sampling (see ...below). Measurements are typically made by stepping the in- ...
13
Numerical Simulation of a Dual-Mode Scramjet Using a RANS and Hybrid LES-RANS Approach.
... planar laser-induced fluorescence (OH-PLIF), coherent anti- stokes Raman scattering (CARS), focusing schlieren, stereoscopic particle image velocimetry (SPIV), and combustor wall pressure ...
193
A study of heat transfer in forced convective drying with the application of laser induced fluorescence thermometry
... There have been several other recent successful applications of LIF temperature field measurement using toluene, for instance in combustion engines [29, 30, 145–147], shock tubes [148] and high temperature jets [149]. ...
227
Laser Induced Fluorescence Studies of Blood Plasma and Tumor Tissue of Men with Prostate Tumors
... nitrogen laser at a repetition rate of 100 ...the laser beam sample was fixed on the translation stage with micrometric ...2,000 measurements were made per spot per sample in these experiments [8] ...
11
Fuel distribution measurements in a model low NOx double annular combustor using laser induced fluorescence
... the measurements performed in an LPP mixing duct by Harding ...phase fluorescence in the region of the fuel spray was subject to contamination by fluorescence from the liquid ...
7
Measurements of Absolute Atomic Nitrogen Density by Two Photon Absorption Laser Induced Fluorescence Spectroscopy in Hot Air Plasma Generated by Microwave Resonant Cavity
... on laser induced fluorescence spectroscopy with two-photon excitation (TALIF), are more particularly performed along the radial and axial positions of the plasma ...
23
Recent Advances in the Measurement of Rare-Earth Metal Transition Probabilities Using Laser-Induced Plasmas
... 4.1, fluorescence takes place over tens of ...capture fluorescence without the pumping ...LIBS-LIF measurements, since the plasma has to be observed nanoseconds after the resonant excitation ...
107
Mixing Time—Experimental Determination and Applications to the Modelling of Crystallisation Phenomena
... In this work the laser-induced fluorescence has been used. The LIF is a spectroscopic method used for studying structure of molecules, detection of selective species and flow visualization and ...
26
Laser induced fluorescence study on the growth of maize plants
... The LIF spectrum was taken from the bottom of third leaf of each plant grown under normal conditions and under stress of UV-A and UV-B exposure and we have shown the spectrum taken for the third leaf in the Figures 1-10. ...
7
Laser-Induced Fluorescence of Wet Porous Silicon as Laser-Induced Fluorescence of H3O+
... Due to its laser-induced fluorescence in the visible region, porous silicon is considered as a promising material for the development of various sensors. Traditionally, the production of porous ...
5
Acetone planar laser-induced fluorescence for supersonic flow visualization in air and nitrogen jet
... a laser beam of 266 nm wavelength from an Nd:YAG laser (Model LAB190, Spectra Physics Inc, Santa Clara, CA, ...planar laser sheet using a cylindrical lens. The laser beam was shaped into a ...
7
Technical Note: How accurate can stalagmite formation temperatures be determined using vapour bubble radius measurements in fluid inclusions?
... Until now, palaeoclimate information from stalagmites has mainly been obtained from stable isotope measurements of speleothem calcite (δ 18 O and δ 13 C), annual band thickness and trace element contents ...
9