Imaging of molecular hydrogen and oxygen by single and two-photon fluorescence using laser and flashlamp sources
Diskin, G and Lempert, W. and Miles, R and Kumar, V. and Glesk, Ivan (1991) Imaging of molecular hydrogen and oxygen by single and two-photon fluorescence using laser and flashlamp sources. In: AIAA 29th Aerospace Meeting. American Institute of Aeronautics and Astronautics, United States.
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Two flow visualization techniques, i.e., simultaneous two-dimensional fluorescence imaging of H2 and O2 in a diffusion flame, and quasi-linear fluorescence imaging of O2, are presented. The first uses an injection-locked argon-fluoride excimer laser and a partial overlap of a two-photon ground state absorption in H2 with a single photon absorption from a vibrational level in O2. The second uses a simple, high-intensity ultraviolet flashlamp which provides a flux of photons in the 180-195 nm range, sufficient to produce a quasi-one-dimensional fluorescence image of hot/room temperature oxygen. Both techniques do not require that a seed material be introduced into the flow, they can image major flow constituents, and provide an instantaneous snapshot of the flow.
Author(s): | Diskin, G, Lempert, W., Miles, R, Kumar, V. and Glesk, Ivan ![]() | Item type: | Book Section |
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ID code: | 48194 |
Keywords: | argon lasers, diffusion flames, excimer lasers, flash lamps, flow visualization, hydrogen, laser induced fluorescence, Optics. Light, Atomic and Molecular Physics, and Optics |
Subjects: | Science > Physics > Optics. Light |
Department: | Faculty of Engineering > Electronic and Electrical Engineering |
Depositing user: | Pure Administrator |
Date deposited: | 21 May 2014 11:25 |
Last modified: | 21 Sep 2019 01:27 |
Related URLs: | |
URI: | https://strathprints.strath.ac.uk/id/eprint/48194 |
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