Two-photon absorption

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In this tutorial we will show how to calculate two-photon absorption in bulk silicon, following the approach descried in Ref. [1]. In this tutorial we suppose you are already familiar with the non-linear response using the Yambo code. If it is not the case please study the previous tutorials: [Linear response using Dynamical Berry Phase]

References

  1. Two-photon absorption in two-dimensional materials: The case of hexagonal boron nitride Claudio Attaccalite, Myrta Grüning, Hakim Amara, Sylvain Latil, and François Ducastelle Phys. Rev. B 98, 165126 (2018)