Title :
Direct comparison of quantitative shadowgraphy with interferomery for plasma density measurements
Author :
Minardi, S. ; Gopal, A. ; Petridis, C. ; Tatarakis, M.
Author_Institution :
Centre of Excellence, Laboratory of Optoelectronics, Lasers and Plasma Technology, Technological Educational Institute of Crete - Romanou, 3 - GR 73133 Chania - Greece
Abstract :
The aim of this paper is to compare experimentally the performance of quantitative shadowgraphy to traditional interferometry for plasma density measurements. In our set-ups, shadowgraphy resulted more sensitive than interferometry and also more suitable for the full exploitation of the spatial resolution of the imaging system. Moreover, we discuss the use of two different algorithms for shadowgraphic retrieval which are relevant for low and moderate absorptive samples.
Keywords :
Absorption; Density measurement; Geometrical optics; Optical interferometry; Optical refraction; Optical sensors; Optical variables control; Plasma density; Plasma measurements; Refractive index;
Conference_Titel :
Pulsed Power Conference, 2007 16th IEEE International
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0913-6
Electronic_ISBN :
978-1-4244-0914-3
DOI :
10.1109/PPPS.2007.4651919
