Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

ArF laser system for turbulence measurements

Not Accessible

Your library or personal account may give you access

Abstract

A two-channel digitized system for measuring small density and temperature fluctuations in turbulent air (e.g., in flow in a wind tunnel) is described. The method is based on the fact that ten rotational lines of the X(v" = 0) to B(v′ = 4) absorption manifold of O2 fall within the tuning range of the ArF excimer laser. Although fluorescence from the excited B states of O2 is weak due to predissociation, it is sufficient to provide a sensitive means of monitoring small changes in the ground state populations induced by temperature or density fluctuations. This can be done with a single-laser pulse, and the fluorescence is collected at 90° from the incident 193-nm laser beam; hence excellent temporal and spatial resolution is achieved.

© 1984 Optical Society of America

PDF Article
More Like This
Measurement of oxygen temperature fluctuations by laser-induced fluorescence

Gail A. Massey
THM1 Conference on Lasers and Electro-Optics (CLEO:S&I) 1982

Measurements of fluctuating temperatures in a supersonic turbulent flow using two-photon laser-induced fluorescence

K. P. Gross and R. L. Mckenzie
WF2 Conference on Lasers and Electro-Optics (CLEO:S&I) 1984

Efficiency optimization for an electron-beam-pumped high-power ArF excimer laser

Akira Suda, Minoru Obara, and Tomoo Fujioka
THG3 Conference on Lasers and Electro-Optics (CLEO:S&I) 1984

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved