Probing Molecular Chirality by Orbital-Angular-Momentum-Carrying X-ray Pulses

A twisted X-ray beam with orbital angular momentum is employed in a theoretical study to probe molecular chirality. A nonlocal response description of the matter-field coupling is adopted to account for the field short wavelength and the structured spatial profile. We use the minimal-coupling Hamiltonian, which implicitly takes into account the multipole contributions to all orders. The combined interactions of the spin and orbital angular momentum of the X-ray beam give rise to circular-helical dichroism signals, which are stronger than ordinary circular dichroism signals, and may serve as a useful tool for the study of molecular chirality in the X-ray regime.


Published in:
Journal Of Chemical Theory And Computation, 15, 7, 4180-4186
Year:
Jul 01 2019
Publisher:
Washington, AMER CHEMICAL SOC
ISSN:
1549-9618
1549-9626
Keywords:
Laboratories:




 Record created 2019-07-28, last modified 2019-08-30


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)