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Pulsed Laser Diode for Use as a Light Source for Short-Exposure, High-Frame-Rate Flow Visualization

Parziale, N. J. and Schmidt, B. E. and Damazo, J. S. and Wang, P. S. and Hornung, H. G. and Shepherd, J. E. (2015) Pulsed Laser Diode for Use as a Light Source for Short-Exposure, High-Frame-Rate Flow Visualization. In: AIAA SciTech : 53rd AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2015-0530. ISBN 9781624103438. https://resolver.caltech.edu/CaltechAUTHORS:20190816-144340439

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Abstract

A pulsed laser diode (PLD) is demonstrated as a practical light source for high-speed digital schlieren and shearing-interferometric cinematogrpahy. Frame rates of greater than 300k fps with exposure times on the order of 10 ns have been achieved with an inexpensive and user-friendly setup. The light source has primarily been used in our laboratory to study nonsteady phenomena in high-speed gas flows. Examples are presented to illustrate the usefulness of the PLD as a light source with characteristics of a narrow band of wavelength, short exposure time, high frame-rate, and long pulse train duration.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.2514/6.2015-0530DOIArticle
ORCID:
AuthorORCID
Parziale, N. J.0000-0001-9880-1727
Schmidt, B. E.0000-0001-9193-7760
Damazo, J. S.0000-0002-4155-7177
Hornung, H. G.0000-0002-4903-8419
Shepherd, J. E.0000-0003-3181-9310
Additional Information:© 2015 American Institute of Aeronautics and Astronautics. The authors would like to thank Bahram Valiferdowsi for help running T5. This work was an activity that was part of National Center for Hypersonic Laminar-Turbulent Research, sponsored by the Integrated Theoretical, Computational, and Experimental Studies for Transition Estimation and Control project, supported by the U.S. Air Force Office of Scientific Research and the National Aeronautics and Space Administration (FA9552-09-1-0341). Additionally, this work was supported in part of the Transition Delay in Hypervelocity Boundary Layers by Means of CO2/Acoustic Interactions project, sponsored by the Air Force Office of Scientific Research (FA9550-10-1-0491). J. Damazo was supported by an NDSEG Fellowship.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9552-09-1-0341
Air Force Office of Scientific Research (AFOSR)FA9550-10-1-0491
National Defense Science and Engineering Graduate (NDSEG) FellowshipUNSPECIFIED
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Other Numbering System NameOther Numbering System ID
AIAA Paper2015-0530
Record Number:CaltechAUTHORS:20190816-144340439
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190816-144340439
Official Citation:Pulsed Laser Diode for Use as a Light Source for Short-Exposure, High-Frame-Rate Flow Visualization Nick J. Parziale, Bryan E. Schmidt, Patrick Wang, Hans Hornung, and Joseph Shepherd 53rd AIAA Aerospace Sciences Meeting. https://doi.org/10.2514/6.2015-0530
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97965
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:22 Aug 2019 18:19
Last Modified:03 Oct 2019 21:36

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