[HTML][HTML] Advances in burst-mode laser diagnostics for reacting and nonreacting flows

MN Slipchenko, TR Meyer, S Roy - Proceedings of the Combustion Institute, 2021 - Elsevier
High-energy burst-mode lasers have enabled the development of kHz–MHz rate, multi-
dimensional diagnostics for characterizing highly dynamic and transient phenomena in …

Recent advances in high-speed planar Rayleigh scattering in turbulent jets and flames: increased record lengths, acquisition rates, and image quality

MJ Papageorge, TA McManus, F Fuest, JA Sutton - Applied Physics B, 2014 - Springer
In this manuscript, we describe recent advances made within our research group to obtain
long-record-length, high-speed (10–40 kHz), two-dimensional planar Rayleigh scattering …

From ignition to stable combustion in a cavity flameholder studied via 3D tomographic chemiluminescence at 20 kHz

L Ma, Q Lei, Y Wu, W Xu, TM Ombrello, CD Carter - Combustion and Flame, 2016 - Elsevier
This work reports the study of the ignition processes in a Mach-2 cavity combustor based on
three-dimensional (3D) measurements at 20 kHz. The 3D measurements were obtained by …

The role of temperature, mixture fraction, and scalar dissipation rate on transient methane injection and auto-ignition in a jet in hot coflow burner

CM Arndt, MJ Papageorge, F Fuest, JA Sutton… - Combustion and …, 2016 - Elsevier
The transient injection and subsequent auto-ignition of a methane jet issuing into a laminar
coflow of hot exhaust gas from a lean premixed hydrogen air flame was studied using high …

All-diode-pumped quasi-continuous burst-mode laser for extended high-speed planar imaging

MN Slipchenko, JD Miller, S Roy, JR Gord… - Optics express, 2013 - opg.optica.org
An all-diode-pumped, multistage Nd: YAG amplifier is investigated as a means of extending
the duration of high-power, burst-mode laser pulse sequences to an unprecedented 30 ms …

Megahertz-rate shock-wave distortion cancellation via phase conjugate digital in-line holography

YC Mazumdar, ME Smyser, JD Heyborne… - Nature …, 2020 - nature.com
Holography is a powerful tool for three-dimensional imaging. However, in explosive,
supersonic, hypersonic, cavitating, or ionizing environments, shock-waves and density …

High-speed mixture fraction and temperature imaging of pulsed, turbulent fuel jets auto-igniting in high-temperature, vitiated co-flows

MJ Papageorge, C Arndt, F Fuest, W Meier… - Experiments in fluids, 2014 - Springer
In this manuscript, we describe an experimental approach to simultaneously measure high-
speed image sequences of the mixture fraction and temperature fields during pulsed …

Compact burst-mode Nd: YAG laser for kHz–MHz bandwidth velocity and species measurements

ME Smyser, KA Rahman, MN Slipchenko, S Roy… - Optics Letters, 2018 - opg.optica.org
A compact-footprint (0.18 m^ 2) flash-lamp-pumped, burst-mode Nd: YAG-based master-
oscillator pulsed-amplifier laser is reported with a fundamental 1064 nm output of over 14 J …

High-speed filtered Rayleigh scattering thermometry in premixed flames through narrow channels

Y Krishna, AM Mahuthannan, X Luo, DA Lacoste… - Combustion and …, 2021 - Elsevier
High-speed filtered Rayleigh scattering at 10 kHz repetition rate for time-resolved
temperature measurements in premixed flames propagating in mm-high channels is …

High-energy laser pulses for extended duration megahertz-rate flow diagnostics

J Felver, MN Slipchenko, EL Braun, TR Meyer, S Roy - Optics Letters, 2020 - opg.optica.org
Optical diagnostics of highly dynamic supersonic and hypersonic flows requires laser
sources with a combination of high pulse intensities and fast repetition rates. A burst-mode …