Polarized absorption and fluorescence emission

Figure 2. Polarized absorption and fluorescence emission P, polarizer A, analyzer.

Fig. 1 - polarized absorption and fluorescence emission. P = polarizer A = analyzer... 

The nature of the electronic states of carbazole and N-alkyl substituted derivatives has been established on the basis of quantum-mechanical calculations as well as by spectroscopic methods involving polarized IR and Raman spectra and polarized absorption and fluorescence emission spectra Four n n electronic transitions to singlet excited states have been predicted and observed in the 350-230 nm region which, in the Platt notation, are designated as - A ( 345 nm), L, <- A ( 295 nm), <- A( 265 nm)and Bt, <- A ( 240 nm) All these bands diplay... 

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