Bulletin of the American Physical Society
53rd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 67, Number 7
Monday–Friday, May 30–June 3 2022; Orlando, Florida
Session U07: Chiral Matter and Chiral Light
2:00 PM–3:48 PM,
Thursday, June 2, 2022
Room: Salon 5/6
Chair: Loren Greenman, Kansas State
Abstract: U07.00001 : Turning elliptically polarized light into a highly efficient chiro-optical tool
2:00 PM–2:12 PM
Presenter:
Laura Rego
(Department of Physics, Imperial College London, London, UK)
Authors:
Laura Rego
(Department of Physics, Imperial College London, London, UK)
David Ayuso
(Department of Physics, Imperial College London, London, UK)
Here we show that tight focusing can turn elliptically polarized light into an efficient chiro-optical tool. When an elliptically polarized wave is tightly focused, its polarization plane is rotated towards the propagation direction. Interestingly, this polarization tilt is opposite at opposite sides of the beam axis. Using short laser pulses, this chiral structure allows us to distinguish between enantiomers via purely electric-dipole interactions. Our numerical modelling shows that the interaction of chiral molecules with such light leads to an enantio-sensitive bending of the nonlinear optical response: opposite enantiomers emit high-harmonics in opposite directions, creating new opportunities for imaging molecular chirality efficiently and on ultrafast time scales.
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