Dependence of two-photon-absorption-excited fluorescence on the angle between the linear polarizations of two intersecting beams

Rapaport, Alexandra; Szipöcs, Ferenc; Bass, Michael
June 2003
Applied Physics Letters;6/30/2003, Vol. 82 Issue 26, p4642
Academic Journal
We report experimental observation of the dependence of the fluorescence excited by two-photon absorption (TPA/E fluorescence) in dye solutions on the angle between the linear polarizations of two intersecting pump beams. Both degenerate and nondegenerate TPA/E fluorescence were studied with 4 ns pulsed tunable lasers as pump sources. We find that earlier theoretical analyses do not contain all of the observed changes in fluorescence signal with relative polarization angle.


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