[Th-P2-H] Light-Matter Interactions and Excitons in 2D Materials

5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[Th-P2-H-05] Second Harmonic Generation due to Spatial Structure of Radiation

〇Mikhail Durnev¹, Alexey Gunyaga¹, Sergey Tarasenko¹ (1. Ioffe Inst. (Russia))

We show that spatially structured radiation generates a second harmonic even in homogeneous and isotropic media. The effect originates from the nonlocality of the electric response to the structured electromagnetic field. We develop an analytical theory of such a second harmonic generation in conducting two-dimensional systems.