100 kHz krypton-based flow tagging velocimetry in a high-speed flow

SW Grib, N Jiang, PS Hsu, HU Stauffer, JJ Felver… - Applied Optics, 2021 - opg.optica.org
Krypton (Kr)-based tagging velocimetry is demonstrated in a Kr/N_2 jet at 100 kHz repetition
rate using a custom-built burst-mode laser and optical parametric oscillator (OPO) system. At …

Two-photon cross-section calculations for krypton in the 190–220 nm range

D Shekhtman, MA Mustafa, NJ Parziale - Applied Optics, 2020 - opg.optica.org
This paper presents multi-path, two-photon excitation cross-section calculations for krypton,
using first-order perturbation theory. For evaluation of the two-photon-transition matrix …

100 kHz krypton planar laser-induced fluorescence imaging

SW Grib, PS Hsu, N Jiang, JJ Felver, SA Schumaker… - Optics Letters, 2020 - opg.optica.org
Krypton planar laser-induced fluorescence (Kr PLIF) was demonstrated at a repetition rate of
100 kHz. To achieve this increased rate, a custom injection-seeded optical parametric …

Excitation line optimization for krypton tagging velocimetry and planar laser-induced fluorescence in 200-220 nm Range

D Shekhtman, NJ Parziale, MA Mustafa - AIAA Scitech 2021 Forum, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-1300. vid Krypton tagging
velocimetry (KTV) requires high signal-to-noise ratio (SNR) to observe high-speed boundary …

Determining velocity from tagging velocimetry images using optical flow

TS Gevelber, BE Schmidt, MA Mustafa… - Experiments in …, 2022 - Springer
In this work, we present the application of wavelet-based optical flow velocimetry (wOFV) to
tagging velocimetry image data. wOFV is demonstrated to compare favorably to cross …

Pressure scaling of the collisional broadening parameters of Kr 4p6S01→→5p[3/2]2 transition

A Sahoo, D Zelenak, V Narayanaswamy - Applied optics, 2020 - opg.optica.org
Pressure scaling of collisional broadening parameters of krypton (absorber) 4p^ 6S01?? 5p
[3/2] _2 transition centered at 107.3 nm in the presence of nitrogen N_2 (perturber) is …

Multiphoton processes for high-speed optical diagnostics

D Shekhtman - 2022 - search.proquest.com
Non-intrusive flow diagnostic techniques are applied to the hypersonic flow regime, due to
their fast response time, low influence on flow, and off-surface measurement capability. The …

Development of Krypton Planar Laser Induced Fluorescence Methods for the Measurement of Hypersonic Flow Conditions

C Standage - 2021 - search.proquest.com
Conventional wind tunnel flow measurement techniques typically involve the use of intrusive
sensor systems, such as Pitot-probes and transducers which come in contact with the flow …