1. Αποθετήριο Παραδοτέων Υποτρόφων Δράσεων ΕΣΠΑ Τριτοβάθμιας Εκπαίδευσης 2017-2023
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Τύπος:	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Degenerate four-wave mixing in nonlinear resonators comprising 2D materials: a coupled-mode theory approach
Συγγραφέας:	[EL] Χριστόπουλος, Θωμάς[EN] Christopoulos, Thomas [EL] Τσιλιπάκος, Οδυσσέας[EN] Tsilipakos, Odysseas [EL] Σινάτκας, Γεώργιος[EN] Sinatkas, Georgios [EL] Κριεζής, Εμμανουήλ[EN] Kriezis, Emmanouil
Ημερομηνία:	19/12/2018
Περίληψη:	Two-dimensional (2D) or sheet materials have been recently recognized as fascinating materials for nonlinear photonics. Here, we develop a rigorous mathematical framework based on perturbation theory and temporal coupled-mode theory capable of analyzing third-order, χ(3), multichannel nonlinear processes in resonant systems comprising 2D materials. The framework is applied to model degenerate four-wave mixing in a guided-wave graphene plasmon-polariton resonant structure, consisting of a standing-wave resonator directly coupled to access waveguides. The results obtained with the proposed framework are compared with full-wave finite-element simulations revealing excellent agreement. Besides being accurate and efficient, our framework allows for selectively incorporating different nonlinear phenomena, identifying their unique impact on the nonlinear response and providing valuable physical insight. We are, thus, able to specify the optimal operating point leading to maximum conversion efficiency for the generated wave in a multi-parameter space. In addition, we identify unstable operating regimes exhibiting optical bistability or limit cycles, thoroughly characterizing the component performance. Our framework enables the study of diverse multichannel phenomena (frequency generation, frequency mixing, and parametric amplification) in the thriving field of 2D material photonics, thus allowing for assessing the potential of these exciting materials for practical nonlinear applications.
Γλώσσα:	Αγγλικά
Σελίδες:	10
DOI:	10.1103/PhysRevB.98.235421
EISSN:	2469-9969
Θεματική κατηγορία:	[EL] Ηλεκτρική και Ηλεκτρονική Μηχανική[EN] Electrical and Electronic Engineering
Λέξεις-κλειδιά:	Nonlinear Optics; Photonics; Graphene; Optical Microcavities; Four-wave mixing; Perturbation Theory
Κάτοχος πνευματικών δικαιωμάτων:	©2018 American Physical Society
Ηλεκτρονική διεύθυνση του τεκμηρίου στον εκδότη:	https://journals.aps.org/prb/abstract/10.1103/PhysRevB.98.235421
Ηλεκτρονική διεύθυνση περιοδικού:	https://journals.aps.org/prb/
Τίτλος πηγής δημοσίευσης:	Physical Review B
Τεύχος:	23
Τόμος:	98
Σελίδες τεκμηρίου (στην πηγή):	Article no 235421
Σημειώσεις:	This research is co-financed by Greece and the European Union (European Social Fund-ESF) through the Operational Program “Human Resources Development, Education and Lifelong Learning 2014-2020” in the context of the project “Nonlinear phenomena in graphenecomprising resonators” (MIS 5004717).
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