Table 2: The comparison of optically tuned modulation properties based on different materials.

WorkDescriptionYearFrequencyModulation depthRef.

Libon et al.Multiple quantum well19990.2-1 THz40%[34]
Deng L. et al.InSb gratings20131.5 THz46.70%[42]
Peter W. et al.Graphene on Si (GOS)20120.2-2 THz99%[56]
Wen Q. Y. et alGraphene on Ge20140.25-1 THz94%[57]
Cao Y. et al.MoS220160.5- 1.5THz96%[62]
Fan Z.Y. et al.WS220170.25- 2 THz99%[61]
Hyung K. Y.et al.C6020140.5- 1.5THz98%[43]
He T. et al.AlClPc20150-2.5 THz99%[45]
Shi Z. et al.Si Nanotip20170.25-1 THz>90%[44]