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A positivity-preserving scheme for fluctuating hydrodynamics

Capillary wave spectrum for a liquid slab in equilibrium with its vapour, obtained from the hybrid positivity-preserving scheme and a standard upwind scheme, compared with the theoretical prediction. The small inset shows one of the configurations of the system with the liquid slab at the center and two rough liquid-vapour interfaces.

Molecular Vibration Explorer: an Online Database and Toolbox for Surface-Enhanced Frequency Conversion and Infrared and Raman Spectroscopy

Surface-enhanced spectroscopy leverages the extreme enhancement of molecular signals in carefully engineered metallic nanostructures. There is great potential of surface-enhanced infrared absorption, Raman scattering, and vibrational sum-frequency generation for biosensing, security scanning, THz detection, or even remote control of chemical…