Fig. 3: Lasing spectra and L-I-V results of the SMDC TLs with different cavity parameters. | Nature Communications

Fig. 3: Lasing spectra and L-I-V results of the SMDC TLs with different cavity parameters.

From: High-power electrically pumped terahertz topological laser based on a surface metallic Dirac-vortex cavity

Fig. 3: Lasing spectra and L-I-V results of the SMDC TLs with different cavity parameters.

a Lasing spectra of devices with different lattice constants and \(m=0.18a\) under different injection current densities. b L-I-V curves of devices with different m and the same lattice constant of \({a}_{0}=30.5{{{{{\rm{\mu }}}}}}{{{{{\rm{m}}}}}}\). Inset: Lasing spectra of the device with \(m=0.18a\) corresponding to injection currents labeled in the L-I-V curve.

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