Vibrational temperature measurements in a shock layer using laser induced predissociation fluorescence

Sutton, D. J.; Houwing, A. F. P.; Palma, P. C.; Sandeman, R. I.

doi:10.1007/bf02115893

Cited by 4 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In various experimental contexts, the understanding of physico-chemical mechanisms (shock wave dynamics [1], plasma dynamics [2], laser ablation [3], buffer gas cooling [4,5]) necessitates to characterize the evolution of the molecular degrees of freedom, which can be done by measuring the translational, rotational and vibrational temperatures. For example, in the field of molecular beams, it has been established for decades that a cooling process based on collisions is much more efficient for translation and rotation than for vibration [6].…”

Section: Introductionmentioning

confidence: 99%

Determining a vibrational distribution with a broadband optical source

Courageux,

Cournol,

Comparat

et al. 2020

Preprint

View full text Add to dashboard Cite

This work presents an experimental protocol conceived to determine the vibrational distribution of barium monofluoride molecules seeded in a supersonic beam of argon. Here, as in many cases, the detection signal is related to the number of molecules by an efficiency involving several parameters that may be difficult to determine properly. In particular, this efficiency depends on the vibrational level of the detected molecules. Our approach avoids these complications by comparing different detection signals generated by different vibrational excitations. Such an excitation is made possible by the use of a broadband optical source that depletes a specific vibrational level whose population is redistributed in the other levels.

show abstract

Section: Introductionmentioning

confidence: 99%

Determining a vibrational distribution with a broadband optical source

Courageux,

Cournol,

Comparat

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

Vibrational Temperature Measurements in a Shock Layer Using Laser Induced Predissociation Fluorescence

Sutton

Houwing

Palma

et al. 1995

Shock Waves @ Marseille II

View full text Add to dashboard Cite

Optical imaging techniques for hypersonic impulse facilities

2007

Self Cite

View full text Add to dashboard Cite

The application of optical imaging techniques to hypersonic facilities is discussed and examples of experimental measurements are provided. Traditional Schlieren and shadowgraph techniques still remain as inexpensive and easy to use flow visualisation techniques. With the advent of faster cameras, these methods are becoming increasingly important for time-resolved high-speed imaging. Interferometry’s quantitative nature is regularly used to obtain density information about hypersonic flows. Recent developments have seen an extension of the types of flows that can be imaged and the measurement of other flow parameters such as ionisation level. Planar laser induced fluorescence has been used to visualise complex flows and to measure such quantities as temperature and velocity. Future directions for optical imaging are discussed.

show abstract

Vibrational temperature measurements in a shock layer using laser induced predissociation fluorescence

Cited by 4 publications

References 34 publications

Determining a vibrational distribution with a broadband optical source

Determining a vibrational distribution with a broadband optical source

Vibrational Temperature Measurements in a Shock Layer Using Laser Induced Predissociation Fluorescence

Optical imaging techniques for hypersonic impulse facilities

Contact Info

Product

Resources

About