Vol. 7, Issue 2, Part D (2025)

All-dielectric materials are emerging as a new class of substrates for enhanced Raman scattering. As ohmic losses are reduced in the absence of plasmonic metals, Raman data obtained with dielectrics are very reproducible and reliable. This review summarizes the recent works in the field of all-dielectric/semiconductor resonators designed for Raman purposes. Though the enhancement of non-plasmonic effect in surface enhanced Raman scattering (SERS) is small enough in comparison to the metal based plasmonic SERS the latter is very important due to reproducibility, reliability and easy availability of all-dielectric/semiconductor based substrate.With the help of the comparative study, here we discuss the importance of non-plasmonic SERS over plasmonic SERS in the field of recent research. These systems are able to exploit the evanescent field generated by total internal reflection and multiple scattering of light at the interface between analyte and all-dielectric/semiconductor to multiply the number of Raman photons. This improves the sensitivity of Raman detection and extending the application of SERS for investigating surface chemical reactions.