The U.S. Department of Energy's Office of Scientific and Technical Information

Planar-Laser-Induced Fluorescence (PLIF) is an optical diagnostic that can probe a single chemical species, such as the hydroxyl radical or the methylidine radical, in a chemically reacting flow field, providing information about the concentration, temperature, location, lifespan, and distribution of that species in the test region.

My Life with LIF: A Personal Account of Developing Laser-Induced Fluorescence Richard N. Zare Annual Review of Analytical Chemistry Effects of Saturation on Laser-Induced Fluorescence Measurements of Population and Polarization R Altkorn, and and R N Zare

Laser Induced Fluorescence (LIF) is an optical spectroscopic technique where a sample is excited with a laser, and the fluorescence emitted by the sample is subsequently captured by a photodetector. LIF can be understood as a class of fluorescence spectroscopy where the usual lamp excitation is replaced by a laser source.

Planar laser-induced fluorescence (PLIF) is an optical diagnostic technique widely used in fluid and gas applications. PLIF has proven to be a valuable tool for flow visualization as well as for quantitative whole-field measurements of concentration and temperature in liquid and concentration in gaseous flows.

The research presented here aims at providing a deeper understanding of the formation of nitric oxide in diesel combustion. To this end, in-cylinder distributions of nitric oxide (NO) were acquired by laser-induced fluorescence (LIF) in a rapid compression machine at conditions representative of a modern diesel passenger vehicle.

Laser-induced fluorescence (LIF) is a method for real-time, in situ field screening of residual and non-aqueous phase organic contaminants in undisturbed vadose, capillary fringe, and saturated subsurface soils and groundwater.

Instrument composition: Like ordinary fluorescence detectors, laser-induced fluorescence detectors are mainly composed of light sources, optical systems, detection cells, and light detection elements. The most important difference between the two is that the light source of laser-induced fluorescence detectors is a laser.

Laser Induced Fluorescence. Planar Laser Induced Fluorescence (PLIF = LIF Imaging) is a very sensitive laser imaging technique for species concentration, mixture fraction and temperature measurements in fluid mechanical processes, sprays and combustion systems. LIF imaging is a molecule specific visualization method with high spatial and

Planar Laser-Induced Fluorescence, or PLIF, is an optical measurement technique based upon fluorescence emitted from chemical species excited by planar laser light. Essentially a sheet of laser light is passed through a flow field, and the subsequent fluorescence relaxation event is captured on a digital camera.

In a Laser Induced Fluorescence (LIF) approach a laser is employed as the excitation source. The laser provides a more spectrally intense and selective excitation with a more defined and narrower spectral background level. The laser spectroscopy capability can be tailored with the application to provide enhanced accuracy and repeatability in