Vibrational sum-frequency generation (VSFG) is a nonlinear spectroscopic method widely used to investigate the molecular structure and dynamics of surface systems. However, in far-field observations, ...

Vibrational spectroscopy encompasses a suite of techniques that probe the characteristic vibrational motions of molecules, revealing intimate details of bond strengths, structural motifs and ...

This property enables SFG spectroscopy to serve as a powerful molecular vibrational spectroscopic tool in the infrared wavelength region. A more notable feature of SFG spectroscopy is its surface ...