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In this paper, the interaction of a 1064 nm continuum-wave laser withinductively-coupled plasma generated in a fluorescent light bulb has beenstudied both experimentally and theoretically. The absorption coefficientspertaining to the plasma medium were obtained for different power measurements.The results indicate that absorption coefficients decrease with the increase inlaser power. The UV-Vis spectra of mercury plasma were recorded by thecharge-coupled spectrometer device at different power levels of laser. Thelinear discriminant analysis (LDA) of plasma spectra reveals the plasma ion andelectron oscillations. Fourier series modeling of electron oscillation resultsthe Whistler mode frequency of wpe= 0.16 kHz with a density of ne=3.9x1013cm^(-3). 3D representation of LDA coefficients shows that the increase of laserpower leads the plasma species to form in Whistler mode structures. Plasmaelectron temperatures ( e T ) was inferred from the SPARTAN non-local thermalequilibrium (non-LTE) spectral code, and they were about 0.6 eV in the absenceof laser light. However, there was a 0.05 eV increase in electron temperaturewhen the laser power was absorbed by the plasma. Electron temperatures slightlyincreased with the increase in the power levels, which in turn resulted insmaller absorption coefficients since the absorption coefficients scales withTe^(-3/2).

Linear discriminant analysis as an alternative method to investigate the  interaction of a 1064 nm CW laser light with a cold inductively-coupled  plasma