Abstract
The traveling thermal lens technique is a new all-optical method for probing concentration and velocity patterns in flowing media. A thermal lens created by absorption of a short laser pulse moves with the flow and can be probed by a cw laser beam further downstream as a deflection signal. This technique permits optical measurements of the flow-velocity component perpendicular to the probe laser at high spatial resolution. Its application requires no seeding with particulates, as is needed in most other optical techniques.
© 1985 Optical Society of America
Full Article | PDF ArticleMore Like This
Wayne A. Weimer and Norman J. Dovichi
Appl. Opt. 24(18) 2981-2986 (1985)
A. Rose and R. Gupta
Opt. Lett. 10(11) 532-534 (1985)
Jeffrey A. Sell
Appl. Opt. 24(22) 3725-3735 (1985)