Probing Vibrational Strong Coupling of Molecules with Wavelength?Modulated Raman Spectroscopy

Raman spectroscopy is a powerful technique that enables fingerprinting of materials, molecules, and chemical environments by probing vibrational resonances. In many applications, the desired signals are masked fluorescence, either from molecular system being studied, or adjacent metallic nanostructures. Here, it shown wavelength-modulated provides way to significantly reduce strength fluorescence background, thereby allowing be clearly recorded. This approach made use explore scattering in context strong coupling, an area has thus far been problematic visualise. Specifically, coupling between modes polymer two types confined light field, fundamental mode metal-clad microcavity, surface-plasmon thin metal film looked at. While clear advantages using found, these results on inconclusive, highlight need for more work this exciting topic area.