On laser-induced high-order wave mixing and harmonic generation in a graphene quantum dot

BR Avchyan, AG Ghazaryan, KA Sargsyan… - JETP Letters, 2022 - Springer
We present results of numerical investigations of high-order wave mixing/harmonic
generation (HWM/HHG) with many-body interaction processes derived by a strong two …

High harmonic generation with many-body Coulomb interaction in rectangular graphene quantum dots of armchair edge

BR Avchyan, AG Ghazaryan… - Journal of …, 2022 - spiedigitallibrary.org
High harmonic generation (HHG) in graphene quantum dots of armchair edge by strong
coherent electromagnetic radiation taking into account collective electron-electron scattering …

High-order harmonic generation in graphene quantum dots in the field of an elliptically polarized pulse

S Gnawali, V Apalkov - Physical Review B, 2024 - APS
We study theoretically the generation of high-order harmonics in graphene quantum dots
placed in the field of an elliptically polarized ultrashort pulse. The generated high-order …

Intense anomalous high harmonics in graphene quantum dots caused by disorder or vacancies

HK Avetissian, GA Musayelyan, GF Mkrtchian - Physical Review B, 2024 - APS
This article aims to study the linear and nonlinear optical response of inversion symmetric
graphene quantum dots (GQDs) in the presence of on-site disorder or vacancies. The …

Intense high-order harmonic generation in the giant fullerene molecule

HK Avetissian, S Sukiasyan, TM Markosyan… - Physical Review B, 2024 - APS
In this work the extreme nonlinear optical response of the giant fullerene molecule C 240 in
strong laser field is studied. The investigation of high-order harmonic generation in such …

Long-range correlation-induced effects at high-order harmonic generation on graphene quantum dots

HK Avetissian, AG Ghazaryan, KV Sedrakian… - Physical Review B, 2023 - APS
This paper focuses on investigating high-order harmonic generation (HHG) in graphene
quantum dots (GQDs) under intense near-infrared laser fields. To model the GQD and its …

О лазерно-индуцированной генерации высших гармоник и смешении волн высокого порядка в графеновой квантовой точке

БР Авчян, АГ Казарян, КА Саргсян… - Письма в Журнал …, 2022 - mathnet.ru
Мы представляем результаты численных исследований смешения волн высокого
порядка/генерации высших гармоник (СВВ/ГВГ) с учетом процесса многочастичного …

Extended high-harmonic spectra through a cascade resonance in confined quantum systems

X Zhang, T Zhu, H Du, HG Luo, J Van Den Brink… - Physical Review …, 2022 - APS
The study of high-harmonic generation in confined quantum systems is vital to establishing a
complete physical picture of harmonic generation from atoms and molecules to bulk solids …

High Harmonic Generation with Many-Particle Coulomb Interaction in Graphene Quantum Dot

KV Sedrakian, AG Ghazaryan, BR Avchyan… - Journal of Experimental …, 2023 - Springer
The multiphoton excitation and high harmonic generation (HHG) processes are considered
using the microscopic quantum theory of nonlinear interaction of strong coherent …

Size-Dependent One-and Two-Photon Fluorescence of Acetonitrile-Derived Carbon Dots

AA Astafiev, AM Shakhov, VA Nadtochenko - JETP Letters, 2023 - Springer
Carbon dots—carbonaceous luminescent nanoparticles—are increasingly employed in
bioimaging, fluorescent sensing, photocatalysis, and light emitting devices. The nanoparticle …