Fig. 4: Resonance and Raman spectra measured from the 4 L WSe2 (d = 4 μm) with Vg = 7 V and vac = 800 mV. | Microsystems & Nanoengineering

Fig. 4: Resonance and Raman spectra measured from the 4 L WSe2 (d = 4 μm) with Vg = 7 V and vac = 800 mV.

From: Dynamic tuning of terahertz atomic lattice vibration via cross-scale mode coupling to nanomechanical resonance in WSe2 membranes

Fig. 4

a, b Measured nonlinear resonance spectrum (red, right axis) and Raman peak shift. a ∆ωE2g1& A1g and (b) ∆ω2LA under different driving frequencies (black and blue symbols, left axis) plotted alongside the resonance response curves. c The extracted relationship between E2g1 & A1g peak shift (∆ωE2g1& A1g) and 2LA (∆ω2LA). d FWHM for E2g1 & A1g and 2LA Raman peaks under different driving frequencies. Fitting details of Raman spectra at different driving frequencies are shown in Fig. S3

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