REAL-TIME RESONANT HOLOGRAPHY USING BACTERIORHODOPSIN THIN-FILMS

We demonstrate real-time, two-dimensional measurement of species conce ntration in a turbulent flow field. The dynamics of pulsed holographic recording and decay are characterized for a 46-mu m polymer film cont aining bacteriorhodopsin. We produced species-specific holographic int erferograms of sodium vapor by simultaneously recording two holograms at different wavelengths, one tuned near a sodium absorption feature a nd the other tuned off resonance. An analysis of the techniques' sensi tivity is presented.