Ultrafast chiroptical switching in UV-excited molecules

Vincent Wanie; Etienne Bloch; Erik P. Månsson; Lorenzo Colaizzi; Lorenzo Colaizzi; Krishna Saraswathula; Sergey Ryabchuk; Sergey Ryabchuk; François Légaré; Andrea Trabattoni; Valérie Blanchet; Marie-Catherine Heitz; Nadia Ben Amor; Yann Mairesse; Bernard Pons; Francesca Calegari; Francesca Calegari; Francesca Calegari

doi:10.1364/UP.2022.W2B.3

The International Conference on Ultrafast Phenomena (UP) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper W2B.3
•https://doi.org/10.1364/UP.2022.W2B.3

Ultrafast chiroptical switching in UV-excited molecules

Vincent Wanie, Etienne Bloch, Erik P. Månsson, Lorenzo Colaizzi, Krishna Saraswathula, Sergey Ryabchuk, François Légaré, Andrea Trabattoni, Valérie Blanchet, Marie-Catherine Heitz, Nadia Ben Amor, Yann Mairesse, Bernard Pons, and Francesca Calegari

International Conference on Ultrafast Phenomena 2022

Montreal, Quebec Canada
18–22 July 2022
ISBN: 978-1-957171-07-4

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Gas-phase Chemistry (W2B)

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V. Wanie, E. Bloch, E. P. Månsson, L. Colaizzi, K. Saraswathula, S. Ryabchuk, F. Légaré, A. Trabattoni, V. Blanchet, M. Heitz, N. Ben Amor, Y. Mairesse, B. Pons, and F. Calegari, "Ultrafast chiroptical switching in UV-excited molecules," in The International Conference on Ultrafast Phenomena (UP) 2022, F. Légaré, T. Tahara, J. Biegert, T. Brixner, and N. Dudovich, eds., Technical Digest Series (Optica Publishing Group, 2022), paper W2B.3.

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Abstract

A novel light source delivering few-cycle UV pulses is used to reveal an ultrafast modulation of the chiroptical properties of photoexcited chiral molecules, probed by time-resolved photoelectron circular dichroism. We report a periodic inversion of photoelectron emission direction in methyl-lactate on a timescale as short as 6fs.

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