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Updated: Jan 29, 2026

Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations
Published on: June 23, 2022
X-ray Raman optical activity of chiral molecules
Jérémy R Rouxel1, Yu Zhang2, Shaul Mukamel3,4
1Ecole Polytechnique Fédérale de Lausanne , Laboratoire de Spectroscopie Ultrarapide , Faculté des Sciences de Base , ISIC-BSP , CH-1015 Lausanne , Switzerland .
Abstract:
Resonant and off-resonant Raman Optical Activity signals in the X-ray regime (XROA) are predicted. XROA is a chiral-sensitive variant of the spontaneous Resonant Inelastic Scattering (RIXS) signal. Thanks to the highly localized nature of core excitations, these signals provide a direct probe of local chirality with high sensitivity to the molecular structure. We derive sum-over-states expressions for frequency domain XROA signals and apply them to tyrosine at the nitrogen and oxygen K-edges. Time-resolved extensions of ROA made possible by using additional pulses are briefly outlined.
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