Collisional broadening and pressure shift parameters for the potassium resonance doublet,
near 770 nm, are reported for collisions with molecular oxygen and carbon dioxide …

This note presents a vapor-based seeding apparatus, named the external alkali seeding
instrument (EASI), which is designed to introduce alkali metal vapors into experimental …

This paper presents measurements of collisional broadening and pressure shift parameters
for the potassium D1 and D2 transitions near 0.77 μ m with the collisional partners of …

A laser absorption-based sensor for hypersonic gas flows was developed, targeting the D 1
spectroscopic transition of atomic potassium near 770 nm. The sensor applies rapid …

The ignition and effect of different treatments of pulverized biomass on potassium release
were monitored online using visible light detection and calibration-free TDLAS techniques in …

View Video Presentation: https://doi. org/10.2514/6.2021-3524. vid We report on
measurements of freestream velocity in the Caltech Hypervelocity Expansion Tube (HET) …

A single-line laser absorption diagnostic technique has been developed for rapid
measurements of temperature and pressure in high-enthalpy gas environments. This …

View Video Presentation: https://doi. org/10.2514/6.2023-2519. vid We report an in-situ laser-
based sensor to measure velocity in supersonic gas flows. This sensor makes the …

A diagnostic technique for simultaneous measurements of temperature, pressure, and
velocity at a point is demonstrated in high-enthalpy air environments using spectrally …

Abstract\begin {wrapfigure}{r}{0pt}\includegraphics [scale= 0.105]{ISMS_2022_K-
N2HeH2_Image. eps}\end {wrapfigure} Potassium can be used as a convenient tracer …