Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Integrated Lasers with Transition-Metal-Dichalcogenide Heterostructures: Analysis and Design Utilizing Coupled-Mode Theory for Two-Dimensional Materials
Δημιουργός/Συγγραφέας:	Nousios, Georgios Christopoulos, Thomas [EL] Τσιλιπάκος Οδυσσέας[EN] Tsilipakos, Odysseas Kriezis, Emmanouil E.
Ημερομηνία:	2023
Γλώσσα:	Αγγλικά
ISSN:	2331-7019
DOI:	10.1103/PhysRevApplied.19.064027
Περίληψη:	We assess the continuous-wave and dynamic performance of a photonic laser cavity consisting of a silicon-rich-nitride-on-insulator disk resonator overlaid with a transition-metal dichalcogenide (TMD) bilayer heterostructure (WSe2/MoS2) acting as the gain medium. The optically pumped TMD heterostructure fosters an interlayer exciton with long radiative recombination lifetime, providing light emission in the near-infrared (∼ 1130 nm). Following a meticulous design process, we propose a silicon-oninsulator-compatible, monolithically integrated optical source capable of emitting milliwatt power inside an integrated waveguide, featuring a low pump-power threshold of ∼ 16 kW/cm2, and exhibiting an estimated total quantum efficiency of approximately 1.7%. The proposed laser cavity is analyzed and designed using a rigorous theoretical framework based on perturbation theory and temporal coupled-mode theory, capable of treating nanophotonic cavities of any geometry and material composition comprising both bulk and/or sheet gain media. The framework is built upon fundamental electromagnetic and semiclassical gain equations, rendering it general and adaptable to different cavity configurations and gain-media descriptions. It constitutes a powerful tool for the efficient analysis of contemporary micro- and nanophotonic semiconductor lasers, since it is capable of predicting fundamental laser characteristics, providing design directives, deriving continuous-wave design metrics, and evaluating the dynamic response of realistic laser cavities.
Τίτλος πηγής δημοσίευσης:	Physical Review Applied
Τόμος/Κεφάλαιο:	19
Τεύχος:	6
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Εφαρμοσμένη οπτική. Φωτονική[EN] Applied optics. Photonics
Λέξεις-Κλειδιά:	Excitons Integrated optics Nanophotonics 2-dimensional systems Semiconductor lasers Transition metal dichalcogenides (TMDs) Electromagnetic wave theory Finite-element method Optoelectronics Photonics Semiconductor Physics
EU Grant:	First Call for HFRI Research Projects to support Faculty members and Researchers and the procurement of high-cost research equipment grant
EU Grant identifier:	HFRI-FM17-2086
Κάτοχος πνευματικών δικαιωμάτων:	© 2023 Publisher
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1103/PhysRevApplied.19.064027
Σημειώσεις:	Supplemental material: https://journals.aps.org/prapplied/supplemental/10.1103/PhysRevApplied.19.064027
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο