Formation, stability, and highly nonlinear optical response of excitons to intense light fields interacting with two-dimensional materials

• DOI: 10.48550/arxiv.2307.16647
• Publication Date: 2023-01-01
• Authors: Eduardo B. Molinero; Bruno Amorim; Mikhail Malakhov; Giovanni Cistaro; Álvaro Jiménez-Galán; Misha Ivanov; Antonio Picón; Pablo San-José; Rui E. F. Silva
• Keywords: Condensed Matter - Mesoscale and Nanoscale Physics; Mesoscale and Nanoscale Physics (cond-mat.mes-hall); FOS: Physical sciences; Physics - Optics; Optics (physics.optics)

Excitons play a key role in the linear optical response of 2D materials. However, their significance highly nonlinear to intense mid-infrared light has often been overlooked. Using hBN as prototypical example, we theoretically demonstrate that excitons major this process. Specifically, illustrate formation and stability low-frequency fields, where field strengths surpass Coulomb binding electron-hole pair exciton. Additionally, establish parallelism between these results already-known physics Rydberg states using an atomic model. Finally, propose experimental setup test effect