Major advances in X-ray sources including the development of circularly polarized and
orbital angular momentum pulses make it possible to probe matter chirality at …

We review nonlinear optical processes that are specific to chiral molecules in solution and
on surfaces. In contrast to conventional natural optical activity phenomena, which depend …

Optical activity in sum-frequency vibrational spectra has been observed for the first time in
chiral liquids. The electric-dipole allowed chiral element of the nonlinear susceptibility …

We present a theory of second-harmonic generation from thin films of chiral materials. The
formalism makes distinct the contributions of electric-and magnetic-dipole transitions to the …

We present a theory of second‐harmonic generation from chiral surfaces including
contributions of electric and magnetic dipole transitions to the surface nonlinearity. The …

We demonstrate experimentally that visible-visible sum-frequency generation in the bulk of a
chiral liquid is observable near electronic resonant transitions. Although the process is …

Second-order nonlinear optical frequency conversion in isotropic systems is only dipole
allowed for sum-and difference-frequency generation in chiral media. We develop a single …

A review of CARS evolution from proof-of-the principle experiments to recent CARS
developments, including femtosecond CARS and higher order wave-mixing spectroscopy …

Microscopic techniques based on nonlinear optical processes provide alternative ways to
visualize natural and artificial nanoscopic systems with minimum disturbance. In such …

Optical second-harmonic generation and sum-frequency generation as novel spectroscopic
tools to probe molecular chirality are currently being developed. The latter in particular …