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Experimental setup: M, mirror; P, polarizer; HWP, half-wave plate; BE, beam expander; HM, half-mirror; S, shutter; PZT, piezoelectric transducer; , , detectors. and ( and ) are transmitted (incident) intensities of the two recording beams.
Temporal changes in and for sample I when the applied voltage to the PZT-driven mirror is on and the shutter is closed.
Change in as a function of . The solid curve is the least-squares fit of Eq. (1) to the data.
Temporal evolution of (엯) and (●) of the refractive index changes for the samples (a) I, (b) II, and (c) III.
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