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ZnSe doped glass thin films were deposited on silicon and silica substrates by pulsed laser deposition from sol-gel prepared targets. The blue shift of the photoluminescence(PL) spectra and the first order longitudinal optical phonon Raman spectra shifting to low frequency have been observed exhibiting a result of quantum size effect .By spatial correaltion model and the first order longitudinal optical phonon Raman spectra, we can estimate the coherence length of the nanocrystallites to describe the quality of the thin film .For the first time, we used the UV-visible transmittance spectrum to evaluate bandgap and z-scan to evaluate n2~+1.2×10-4esu of the thin film.
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