Collisional broadening and pressure shift coefficients for the potassium D1 and D2 transitions in oxygen and carbon dioxide at high temperatures

JA Vandervort, K Kotsarinis, SC Barnes… - Journal of Quantitative …, 2024 - Elsevier
Collisional broadening and pressure shift parameters for the potassium resonance doublet,
near 770 nm, are reported for collisions with molecular oxygen and carbon dioxide …

A laser diagnostic for lineshape-based gas temperature and pressure measurements targeting a single atomic potassium absorption transition

JA Vandervort, T Schwartz, SC Barnes, CL Strand… - Applied Physics B, 2024 - Springer
A single-line laser absorption diagnostic technique has been developed for rapid
measurements of temperature and pressure in high-enthalpy gas environments. This …

Second-Generation In-Situ TDLAS Sensor for Supersonic Gas Measurements in a Shock Tube

T Schwartz, C Strand, RK Hanson… - AIAA SCITECH 2025 …, 2025 - arc.aiaa.org
A laser absorption-based sensor is designed for spatially-restricted measurements of
supersonic flow temperature and velocity in a ground-test impulse facility. The sensor is built …

Simultaneous Point Measurements of Temperature, Pressure, and Velocity Using Spectrally Resolved Laser-Induced Fluorescence of Atomic Potassium Vapor in Air

J Vandervort, K Kotsarinis, C Strand… - AIAA SCITECH 2025 …, 2025 - arc.aiaa.org
A diagnostic technique for simultaneous measurements of temperature, pressure, and
velocity at a point is demonstrated in high-enthalpy air environments using spectrally …