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https://hdl.handle.net/123456789/1043| Τύπος: | Άρθρο σε επιστημονικό περιοδικό |
| Τίτλος: | Dynamic control of nonlinearly generated light chirality with nanostructured graphene |
| Συγγραφέας: | [EL] Ματθαιακάκης, Νικόλαος[EN] Matthaiakakis, Nikolaos [EL] Δρούλιας, Σωτήριος[EN] Droulias, Sotiris [EL] Κακαράντζας, Γεώργιος[EN] Kakarantzas, George |
| Ημερομηνία: | 21/04/2023 |
| Περίληψη: | The constant development of nanotechnology has facilitated significant improvements in the field of nonlinear optics. Metasurfaces and metamaterials, or nanostructured material systems, have allowed excellent control over a variety of linear and nonlinear optical processes, including manipulation of the amplitude, phase, and polarization of light. To facilitate this progress, there is an increasing demand for small footprint nonlinear material systems and metamaterial designs that offer diverse functionalities. Here, we demonstrate that this demand can be satisfied by utilizing the family of two-dimensional materials and more specifically graphene. In this work, we take advantage of the exceptionally large nonlinearity of graphene and demonstrate simultaneous dynamic control over the polarization state and nonlinear conversion efficiency of the third harmonic emission via the coherent excitation of localized surface plasmons in nanopatterned graphene rectangular arrays. Using finite-difference time-domain simulations and through electrostatic control over the Fermi level in graphene, we demonstrate broadband dynamic tuning between linear and circular polarization states for the third harmonic emission. The proposed method is not limited to third harmonic emission and is applicable to different nonlinear optical processes. As a result, the proposed metasurface constitutes an outstanding platform for commercially viable, CMOS-compatible, room-temperature devices for nonlinear conversion applications. |
| Γλώσσα: | Αγγλικά |
| Σελίδες: | 8 |
| DOI: | 10.1021/acsaom.3c00032 |
| EISSN: | 2771-9855 |
| Θεματική κατηγορία: | [EL] Οπτική[EN] Optics |
| Λέξεις-κλειδιά: | Nonlinear Optics; Graphene; plasmon; chirality; tunable; Circularly polarized light; Graphene metasurface; Localized surface plasmon; Tunability |
| Κάτοχος πνευματικών δικαιωμάτων: | © 2023 American Chemical Society |
| Ηλεκτρονική διεύθυνση του τεκμηρίου στον εκδότη: | https://pubs.acs.org/doi/10.1021/acsaom.3c00032# |
| Ηλεκτρονική διεύθυνση περιοδικού: | https://pubs.acs.org/journal/aaoma6 |
| Τίτλος πηγής δημοσίευσης: | ACS Applied Optical Materials |
| Σελίδες τεκμηρίου (στην πηγή): | 952–959 |
| Σημειώσεις: | This research is cofinanced by Greece and the European Union (European Social Fund- ESF) through the Operational Programme ≪Human Resources Development, Education and Lifelong Learning≫ in the context of the project “Reinforcement of Postdoctoral Researchers -2nd Cycle” (MIS-5033021), implemented by the State Scholarships Foundation (ΙΚΥ). |
| Εμφανίζεται στις συλλογές: | Μεταδιδακτορικοί ερευνητές |
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