Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	All-Fiber Plasmonic Platform Based on Hybrid Composite Metal/Glass Microwires
Δημιουργός/Συγγραφέας:	Petropoulou A. Antonopoulos G. Bastock P. [EL] Κακαράντζας, Γεώργιος[EN] Kakarantzas, George Craig C. Hewak D.W. Zervas M.N. [EL] Ριζιώτης, Χρήστος Δ.[EN] Riziotis, Christos
Εκδότης:	American Chemical Society
Ημερομηνία:	2018
Γλώσσα:	Αγγλικά
ISSN:	1932-7447
DOI:	10.1021/acs.jpcc.8b08844
Περίληψη:	Metal tips are emerging plasmonic structures that can offer high field intensity at the tip apex and high confinement on the nanoscale. However, the fabrication of smooth metal tips with well-defined geometrical characteristics, crucial for optimizing the performance of the plasmonic structure, is not trivial. Furthermore, pure metal tips are exposed to the environment and fragile, thus complicating their use in real applications. The proposed platform based on hybrid composite glass metal microwires can offer the required robustness for device development. An optimized fabrication process of high-quality all-fiber plasmonic tips by tapering such hybrid metal core/dielectric cladding microfibers is proposed and demonstrated experimentally. The presence of the dielectric cladding offers continuous re-excitation of the plasmon modes due to repeated total internal reflection at the glass/air interface, which can dramatically reduce the high losses induced by the metal core. This enables direct light coupling from the distal end of fiber instead of side excitation of the tip, allowing thus their integration in the optical fiber and planar circuits. Plasmonic tips were successfully demonstrated in a highly controllable manner, and their performance was related to simulation results predicting high field enhancement factors up to 105.
Τίτλος πηγής δημοσίευσης:	Journal of Physical Chemistry C
Τόμος/Κεφάλαιο:	122
Τεύχος:	45
Σελίδες:	26169-26176
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2018 American Chemical Society.
Όροι και προϋποθέσεις δικαιωμάτων:	All Open Access, Green
Σημειώσεις:	Engineering and Physical Sciences Research Council, EPSRC: EP/H02607X/1; Royal Academy of Engineering; European Commission, EC; European Regional Development Fund, FEDER This work was supported in part by the project “Advanced Materials and Devices” (MIS 5002409), which is implemented under the “Action for the Strategic Development on the Research and Technological Sector”, funded by the Operational Programme “Competitiveness, Entrepreneurship and Innovation” (NSRF 2014-2020) and co-financed by Greece and the European Union (European Regional Development Fund).
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο