Seminars
Enantio-Specific Unidirectional Harmonic Emission: the Chiral Double slit Experiment
May 17th, 2021 ANDRÉS ORDOÑEZ Quantum Optics Theory
ICFO-The Institute of Photonic Sciences

Structured light – light exhibiting non-trivial intensity, phase, and polarization patterns – has applications ranging from imaging and 3D micro-manipulation to classical and quantum communication [1]. However, to date, its application to molecular chirality [2] has been fundamentally limited by the weakness of the magnetic-dipole interaction. Locally chiral light – light tracing a chiral Lissajous figure – bypasses this limitation and allows efficient chiral light-matter interaction at the electric-dipole level [3]. In this talk I will show that, by structuring light’s local chirality, efficient enantio-specific control of the emission angle of harmonics in a chiral medium can be achieved [4]. This phenomenon, which can be understood as a chiral extension of Young’s double slit experiment, exposes the immense potential of sculpting light’s local chirality to control the molecular response, and offers novel opportunities for efficient chiral discrimination and imaging on ultrafast time scales.

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[1] H. Rubinsztein-Dunlop et al., Roadmap on structured light, J. Opt. 19, 013001 (2016).
[2] R. P. Cameron et al., Diffraction gratings for chiral molecules and their applications, J. Phys. Chem. A, 118, 3472 (2014).
[3] D. Ayuso et al., Synthetic chiral light for efficient control of chiral light– matter interaction, Nat. Phot. 13, 866 (2019).
[4] D. Ayuso et al., Enantiosensitive unidirectional light bending, Nat. Comms. (accepted), arXiv:2004.05191 (2020).


Seminar, May 17, 2021, 10:00. Online (Zoom)

Hosted by Prof Maciej Lewenstein

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