Four-wave mixing experiment schematic

Figure 2. A schematic of the four-wave mixing experiment The microscope objective (M.O.) and TV camera combination is used to observe spatial overlap of the three incident beams on the same spot on the sample during intial beam alignment...

Fig. 4. Schematic representation of four wave mixing experiment. Beams 1 and 2 are pump, beam 3 is probe and beam 4 is signal, respectively...

Figure 2. Schematic of the degenerate four wave mixing experiment. Ml, M2, M3 > Mirrors BSl, B82, BS3, B84 = Beam Splitters PDl, PD2 = Photodiode Detectors.

The four-wave mixing technique serves to measure the diffraction efficiency t] during the writing process as a function of time and as a function of the strength of the external electric field. Figure 4.4 shows a schematic representation of a typical set-up employed in four-wave mixing experiments. 

Fig. 4.4 Schematic depiction of a set-up for a four-wave mixing experiment, as employed to measure diffraction efficiency as a function of the strength of an external electric field. Reading beam counterpropa-gating with writing beam (1). Diffracted beam counterpropagating with writing beam (2). Adapted from Kippelen et al.

Fig. 17. Schematic of the tilted configuration for four-wave mixing and two-beam coupling experiments in photorefractive polymers...

FIGURE 49.7. Schematics of experimental arrangement of the degenerate four-wave mixing (backward geometry) experiment. 

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