Figure 2 | Scientific Reports

Figure 2

From: Super-resolved time–frequency measurements of coupled phonon dynamics in a 2D quantum material

Figure 2

Comparison of the Short-Time Fourier Transform (STFT), Continuous Wavelet Transform (CWT), and Superlet Transform (SLT) for 0.081 mJ/cm2 pump fluence (a–c, respectively) and for 1.278 mJ/cm2 pump fluence (d–f, respectively). White lines at 1.6, 1.8, 2, and 2.8 THz are guides to the eye. All transforms use a normalized Log10 color scaling for ease of comparison. The SLT outperforms the other two techniques in both spectral and temporal resolution.

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