Campus Units
Mechanical Engineering
Document Type
Article
Publication Version
Published Version
Publication Date
2014
Journal or Book Title
Optics Letters
Volume
39
Issue
4
First Page
739
Last Page
742
DOI
10.1364/OL.39.000739
Abstract
High-repetition-rate, burst-mode lasers can achieve higher energies per pulse compared with continuously pulsed systems, but the relatively few number of laser pulses in each burst has limited the temporal dynamic range of measurements in unsteady flames. A fivefold increase in the range of timescales that can be resolved by burst-mode laser-based imaging systems is reported in this work by extending a hybrid diode- and flashlamp-pumped Nd:YAG-based amplifier system to nearly 1000 pulses at 100 kHz during a 10 ms burst. This enables an unprecedented burst-mode temporal dynamic range to capture turbulent fluctuations from 0.1 to 50 kHz in flames of practical interest. High pulse intensity enables efficient conversion to the ultraviolet for planar laser-induced fluorescence imaging of nascent formaldehyde and other potential flame radicals.
Rights
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
Language
en
File Format
application/pdf
Recommended Citation
Michael, James B.; Venkateswaran, Prabhakar; Miller, Joseph D.; Slipchenko, Mikhail N.; Gord, James R.; Roy, Sukesh; and Meyer, Terrence R., "100 kHz thousand-frame burst-mode planar imaging in turbulent flames" (2014). Mechanical Engineering Publications. 439.
https://lib.dr.iastate.edu/me_pubs/439
Comments
This article is published as Michael, James B., Prabhakar Venkateswaran, Joseph D. Miller, Mikhail N. Slipchenko, James R. Gord, Sukesh Roy, and Terrence R. Meyer. "100 kHz thousand-frame burst-mode planar imaging in turbulent flames." Optics Letters 39, no. 4 (2014): 739-742. DOI: 10.1364/OL.39.000739.