Fig. 5: Thermo-optic nonlinearity near epsilon-near-zero (ENZ) region. | Nature Communications

Fig. 5: Thermo-optic nonlinearity near epsilon-near-zero (ENZ) region.

From: Thermo-optic epsilon-near-zero effects

Fig. 5

a The thermo-optic nonlinear-index coefficients of the O-band, C-band, 2-μm-band ENZ and non-ENZ samples. b The ENZ-induced enhancement of the thermo-optic nonlinearity. The colored vertical lines indicate the exact ENZ frequencies of the corresponding curves.

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