Dr. Ag­nieszka Kozub re­ceived a poster com­mend­a­tion on the Psi-k 2022 Con­fer­ence

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In the commended study, she focused on the second-order susceptibility χ(2) of lithium niobate. She found that defect-trapped polarons and bipolarons strongly enhance χ(2) of the material, what is a consequence of the formation of polaronic states inside the gap. Considering that the polaron density may be modified by dopants or by optical excitation, polarons provide a way to control spatially and transiently χ(2) in lithium niobate.

The Psi-k 2022 Conference – the largest event worldwide in electronic-structure simulations – was held on August 22-25, 2022, in Lausanne, Switzerland. Her commended poster was entitled  “Strong χ(2) Enhancement Due to Polaron Formation in Lithium Niobate”.

Congratulations! 

More details on this work can be found in the publication: https://doi.org/10.1103/PhysRevB.104.174110

Dr. Agnieszka Kozub, member of the TRR 142