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https://hdl.handle.net/10442/18185
Εξειδίκευση τύπου : | Άρθρο σε επιστημονικό περιοδικό |
Τίτλος: | Multimode non-Hermitian framework for third harmonic generation in nonlinear photonic systems comprising two-dimensional materials |
Δημιουργός/Συγγραφέας: | Christopoulos, Thomas Kriezis, Emmanouil E. [EL] Τσιλιπάκος Οδυσσέας[EN] Tsilipakos, Odysseas |
Εκδότης: | Americal Physical Society (APS) |
Ημερομηνία: | 2023-01-13 |
Γλώσσα: | Αγγλικά |
ISSN: | 2469-9950 2469-9969 |
DOI: | 10.1103/PhysRevB.107.035413 |
Περίληψη: | Resonant structures in modern nanophotonics are non-Hermitian (leaky and
lossy), and support quasinormal modes. Moreover, contemporary cavities
frequently include 2D materials to exploit and resonantly enhance their
nonlinear properties or provide tunability. Such materials add further modeling
complexity due to their infinitesimally thin nature and strong dispersion.
Here, a formalism for efficiently analyzing third harmonic generation (THG) in
nanoparticles and metasurfaces incorporating 2D materials is proposed. It is
based on numerically calculating the quasinormal modes in the nanostructure, it
is general, and does not make any prior assumptions regarding the number of
resonances involved in the conversion process, in contrast to conventional
coupled-mode theory approaches in the literature. The capabilities of the
framework are showcased via two selected examples: a single scatterer and a
periodic metasurface incorporating graphene for its high third-order
nonlinearity. In both cases, excellent agreement with full-wave nonlinear
simulations is obtained. The proposed framework may constitute an invaluable
tool for gaining physical insight into the frequency generation process in
nano-optic structures and providing guidelines for achieving drastically
enhanced THG efficiency. |
Τίτλος πηγής δημοσίευσης: | Physical Review B |
Τόμος/Κεφάλαιο: | 107 |
Τεύχος: | 3 |
Σελίδες: | 035413 |
Θεματική Κατηγορία: | [EL] Εφαρμοσμένη οπτική. Φωτονική[EN] Applied optics. Photonics |
Λέξεις-Κλειδιά: | nonlinear optics Graphene third harmonic generation non-Hermitian photonics leaky optical resonators quasinormal modes metasurfaces photonic scatterers |
Αξιολόγηση από ομότιμους (peer reviewed): | Ναι |
Ηλεκτρονική διεύθυνση με ανοικτή πρόσβαση (link): | http://arxiv.org/pdf/2210.13180v1 |
Ηλεκτρονική διεύθυνση στον εκδότη (link): | https://doi.org/10.1103/PhysRevB.107.035413 |
Ηλεκτρονική διεύθυνση περιοδικού (link) : | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.107.035413 |
Εμφανίζεται στις συλλογές: | Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο
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