Nonlinear symmetry breaking in photometamaterials

Maxim A. Gorlach, Dmitry A. Dobrykh, Alexey P. Slobozhanyuk, Pavel A. Belov, Mikhail Lapine

Research output: Contribution to journalArticlepeer-review


We design and analyze theoretically photometamaterials with each meta-atom containing both photodiode and light-emitting diode. Illumination of the photodiode by the light-emitting diode gives rise to an additional optical feedback within each unit cell, which strongly affects resonant properties and nonlinear response of the meta-atom. In particular, we demonstrate that inversion symmetry breaking occurs upon a certain threshold magnitude of the incident wave intensity resulting in an abrupt emergence of second-harmonic generation, which was not originally available, as well as in the reduced third-harmonic signal.

Original languageEnglish
Article number115119
JournalPhysical Review B
Issue number11
StatePublished - 9 Mar 2018
Externally publishedYes


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