High-order harmonic generation in hexagonal nanoribbons

Autor:	Jürß, Hannah, Bauer, Dieter
Rok vydání:	2021
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Physics - Atomic Physics Physics - Optics Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1140/epjs/s11734-021-00106-z
Popis:	The generation of high-order harmonics in finite, hexagonal nanoribbons is simulated. Ribbons with armchair and zig-zag edges are investigated by using a tight-binding approach with only nearest neighbor hopping. By turning an alternating on-site potential off or on, the system describes for example graphene or hexagonal boron nitride, respectively. The incoming laser pulse is linearly polarized along the ribbons. The emitted light has a polarization component parallel to the polarization of the incoming field. The presence or absence of a polarization component perpendicular to the polarization of the incoming field can be explained by the symmetry of the ribbons. Characteristic features in the harmonic spectra for the finite ribbons are analyzed with the help of the band structure for the corresponding periodic systems. Comment: 12 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2101.02961 Zobrazit plný text záznamu View this record from Arxiv