English (United States)
This thesis investigates Stark broadening hydrogen Balmer emission lines n = 4 to 15 subsequent to nanosecond laser induced optical breakdown of hydrogen gas from Nd:YAG Q-switched laser operated at 1064 nm. Data for 1, 2 and 4 µs delay times after the plasma initiation was Abel inverted for Balmer emission lines from n = 3 to 10. Trends in Area and FWHM under the fitted Lorentzian to these curves were plotted as a function of radius and for three separate delays. Temperature of 5000 to 10000 K was calculated. Electron number of density of 5×&amp;#12310;10&amp;#12311;^16 to 1×&amp;#12310;10&amp;#12311;^15/&amp;#12310;cm&amp;#12311;^(-3)was referred from the theory. This work was able to observe distinguishable hydrogen Balmer emission lines from plasma for n = 3 to 15.
Kandel, Yudhishthir Prasad, "Investigation of Stark Broadening in LIBS of Hydrogen Balmer emission lines n = 3 to 15" (2009). Honors Theses - All. 373.
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