FN Archimer Export Format PT J TI Theoretical Study of High Near-Field Enhancement Associated with the Lasing Action in Strongly Coupled Plasmonic Nanocavity Arrays BT AF DRIDI, Montacer Jaouadi, Amine Colas, Florent Compère, Chantal AS 1:1;2:2;3:1;4:1; FF 1:PDG-REM-RDT-LDCM;2:;3:PDG-REM-RDT-LDCM;4:PDG-REM-RDT-LDCM; C1 Ifremer, REM/RDT/LDCM, Route de Sainte-Anne, F-29280 Plouzané, France ECE Paris, INSEEC U, 37 quai de Grenelle, Paris 75015, France C2 IFREMER, FRANCE INSEEC, FRANCE SI BREST SE PDG-REM-RDT-LDCM IN WOS Ifremer UPR copubli-france IF 4.177 TC 1 UR https://archimer.ifremer.fr/doc/00666/77761/79890.pdf LA English DT Article AB Lasing action in strongly coupled plasmonic nanocavity arrays was investigated both theoretically and experimentally. This phenomenon was generated by coupling a gain medium with a surface lattice plasmon resonance mode. In this paper, the near-field properties of this laser are investigated theoretically. It is showed that the lasing action is associated with a strong near-field enhancement at the emission wavelength that can be 4 orders of magnitude higher than what could be generated by the same nanostructure without the gain medium. The field enhancement depends non-linearly on the pumping energy. Finally, the enhancement mechanism in such an active system is assumed to rely mainly on energy transfer at the nanoscale from molecules composing the gain medium to the plasmonic mode. PY 2021 PD JAN SO Journal Of Physical Chemistry C SN 1932-7447 PU American Chemical Society (ACS) VL 125 IS 1 UT 000611410300077 BP 749 EP 756 DI 10.1021/acs.jpcc.0c08669 ID 77761 ER EF