We report on measurements of rotational and vibrational temperature, velocity, and
concentrations of nitric oxide (NO) in freestream flows at the T5 reflected shock tunnel at …

The visible and near-infrared spectra of late L-and T-type dwarf stars are dominated in large
part by the resonance lines of neutral Na and K. It is the collision broadening of these atomic …

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 …

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 …

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

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 …

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 …