Figure 1 | Scientific Reports

Figure 1

From: Analogy of transistor function with modulating photonic band gap in electromagnetically induced grating

Figure 1

(a) Four-level energy system. (b) Schematic of an electromagnetically induced grating formed by two coupling beams E3 and . Together with the dressing field E2 and probe field E1, a dressed band gap signal Er will be generated according to the phase-matching condition . (c) The setup of our experiment. (d) Block diagram of the analogy of transistor amplification function.

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