  In this paper, the interaction of a 1064 nm continuum-wave laser with
inductively-coupled plasma generated in a fluorescent light bulb has been
studied both experimentally and theoretically. The absorption coefficients
pertaining to the plasma medium were obtained for different power measurements.
The results indicate that absorption coefficients decrease with the increase in
laser power. The UV-Vis spectra of mercury plasma were recorded by the
charge-coupled spectrometer device at different power levels of laser. The
linear discriminant analysis (LDA) of plasma spectra reveals the plasma ion and
electron oscillations. Fourier series modeling of electron oscillation results
the Whistler mode frequency of wpe= 0.16 kHz with a density of ne=3.9x1013
cm^(-3). 3D representation of LDA coefficients shows that the increase of laser
power leads the plasma species to form in Whistler mode structures. Plasma
electron temperatures ( e T ) was inferred from the SPARTAN non-local thermal
equilibrium (non-LTE) spectral code, and they were about 0.6 eV in the absence
of laser light. However, there was a 0.05 eV increase in electron temperature
when the laser power was absorbed by the plasma. Electron temperatures slightly
increased with the increase in the power levels, which in turn resulted in
smaller absorption coefficients since the absorption coefficients scales with
Te^(-3/2).
