Metrology is a founding pillar and a driving force of scientific discovery and understanding. The ability to accurately measure quantities of interest has always been one of the ultimate tests in verifying or subverting scientific hypotheses, ultimately advancing the scientific understanding and engineering applications. Although much progress has been made in all fields of science and engineering over the last century, the state of the art in the metrology of gas and plasma flows has largely remained unchanged, being perturbative and not accurate to the level modern science and engineering requires. In this talk I will discuss the laser diagnostic efforts developed to tackle the matter, by concentrating on the research efforts of our group in this field by utilizing Coherent Rayleigh-Brillouin scattering (CRBS).
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