Extended Data Fig. 8: Thermogram of the device and influence of temperature. | Nature

Extended Data Fig. 8: Thermogram of the device and influence of temperature.

From: Non-Hermitian topological whispering gallery

Extended Data Fig. 8

a, Photograph of the sample. b, c, Corresponding thermogram of the sample without (passive; b) and with (active; c) applied electric control. In a–c, the left column shows the entire sample and the right column shows the enlarged view of the partial sample outlined by the dashed frame. d, Temperature evolutions of air near the CNT film (blue curve) and in the background (orange curve) with time during the measurements. The shaded area corresponds to the temperature range of 21–22 °C in the experiments. e, The frequency shifts of the peaks corresponding to f−, f0 and f+ under the variation of the temperature. Lines and dots represent the theoretical and simulated results.

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