Fig. 5: Demonstration of control over the energy of a defect state through changing the size of the engineered defect. | Nature Communications

Fig. 5: Demonstration of control over the energy of a defect state through changing the size of the engineered defect.

From: Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phases

Fig. 5: Demonstration of control over the energy of a defect state through changing the size of the engineered defect.

Experimental dispersions of the PL from chains of 12 polariton condensates with a ≈ 10 μm and a defect length of a ad ≈ 9.0 μm, b ad ≈ 8.6 μm, c ad ≈ 8.2 μm, d ad ≈ 7.6 μm, and e ad ≈ 7.1 μm. Each colourmap uses the normalised logarithmic colour scale shown in e. The gap mode is indicated by the blue arrows.

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