Fig. 5: Formation of edge solitons in the presence of Raman gain. | Nature Communications

Fig. 5: Formation of edge solitons in the presence of Raman gain.

From: Observation of edge solitons in photonic graphene

Fig. 5

a Input probe beam. Scale bar: 200 μm. b Output probe beam in the presence of Raman gain at \(T = 95^{\mathrm{o}}{\mathrm{C}}\). The cross-section of the incident beam shown in both panels a and b enables comparison with the output profile that confirms suppression of losses by Raman gain. a, b share the same scale bar. c Output probe intensity with Raman gain versus different temperatures (atomic density). Each black dot represents the peak intensity of the probe beam with \(\Delta _1 = 380\,{\mathrm{MHz}}\), where the Raman gain locates. The error bars indicate the standard deviation for three measurements. df Output probe spectra versus \(\Delta _1\). The peak heights correspond to the dots in (c). Profiles of the output probe beams in the presence of Raman gain at \(T = 110^{\mathrm{o}}{\mathrm{C}}\) (g) and \(T = 125^{\mathrm{o}}{\mathrm{C}}\) (i). Scale bar: 200 μm. h Interference pattern with reference beam corresponding to (g). h, i share the same scale bar as (g).

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