Imaging of molecular hydrogen and oxygen by single and two-photon fluorescence using laser and flashlamp sources

G Diskin, W. Lempert, R Miles, V. Kumar, Ivan Glesk

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

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.
LanguageEnglish
Title of host publicationAIAA 29th Aerospace Meeting
Place of PublicationUnited States
Number of pages11
DOIs
Publication statusPublished - 7 Jan 1991

Fingerprint

fluorescence
photons
oxygen
hydrogen
lasers
diffusion flames
flow visualization
excimer lasers
fluorides
seeds
argon
injection
ground state
room temperature

Keywords

  • argon lasers
  • diffusion flames
  • excimer lasers
  • flash lamps
  • flow visualization
  • hydrogen
  • laser induced fluorescence

Cite this

Diskin, G., Lempert, W., Miles, R., Kumar, V., & Glesk, I. (1991). Imaging of molecular hydrogen and oxygen by single and two-photon fluorescence using laser and flashlamp sources. In AIAA 29th Aerospace Meeting [91-0463] United States. https://doi.org/10.2514/6.1991-463
Diskin, G ; Lempert, W. ; Miles, R ; Kumar, V. ; Glesk, Ivan. / Imaging of molecular hydrogen and oxygen by single and two-photon fluorescence using laser and flashlamp sources. AIAA 29th Aerospace Meeting. United States, 1991.
@inproceedings{d7dba5c3354c4291841118dc9041e175,
title = "Imaging of molecular hydrogen and oxygen by single and two-photon fluorescence using laser and flashlamp sources",
abstract = "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.",
keywords = "argon lasers, diffusion flames, excimer lasers, flash lamps, flow visualization, hydrogen, laser induced fluorescence",
author = "G Diskin and W. Lempert and R Miles and V. Kumar and Ivan Glesk",
year = "1991",
month = "1",
day = "7",
doi = "10.2514/6.1991-463",
language = "English",
booktitle = "AIAA 29th Aerospace Meeting",

}

Diskin, G, Lempert, W, Miles, R, Kumar, V & Glesk, I 1991, Imaging of molecular hydrogen and oxygen by single and two-photon fluorescence using laser and flashlamp sources. in AIAA 29th Aerospace Meeting., 91-0463, United States. https://doi.org/10.2514/6.1991-463

Imaging of molecular hydrogen and oxygen by single and two-photon fluorescence using laser and flashlamp sources. / Diskin, G; Lempert, W. ; Miles, R; Kumar, V.; Glesk, Ivan.

AIAA 29th Aerospace Meeting. United States, 1991. 91-0463.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

TY - GEN

T1 - Imaging of molecular hydrogen and oxygen by single and two-photon fluorescence using laser and flashlamp sources

AU - Diskin, G

AU - Lempert, W.

AU - Miles, R

AU - Kumar, V.

AU - Glesk, Ivan

PY - 1991/1/7

Y1 - 1991/1/7

N2 - 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.

AB - 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.

KW - argon lasers

KW - diffusion flames

KW - excimer lasers

KW - flash lamps

KW - flow visualization

KW - hydrogen

KW - laser induced fluorescence

UR - http://arc.aiaa.org/doi/book/10.2514/MASM91

U2 - 10.2514/6.1991-463

DO - 10.2514/6.1991-463

M3 - Conference contribution book

BT - AIAA 29th Aerospace Meeting

CY - United States

ER -