Luminescent activity of two‐level molecule with population inversion. Issue 2 (9th December 2015)

• Record Type: Journal Article
• Authors: Hata, Ryosuke; Ajiki, Hiroshi; Yokoshi, Nobuhiko; Ishihara, Hajime
• Other Names: Silva Carlos sponsoringEditor.; Kashyap Raman sponsoringEditor.
• Is Part Of: Physica status solidi. Volume 13:Issue 2/3(2016:Mar.)
• Page Start: 105
• Page End: 108
• Publication Date: 2015-12-09
• Subjects: two‐level molecule -- uminescent activity -- metallic nano‐antenna; Solid state physics -- Congresses; Solid state physics -- Periodicals; Solid state physics; Conference proceedings; Periodicals; 530.41
• DOI: 10.1002/pssc.201510157
• Languages: English
• ISSNs: 1862-6351

Abstract

Abstract: A novel technique for up‐converted luminescence generation from a two‐level molecule via population inversion is studied using the quantum toy model; this model is used to represent a coupled‐molecule and metallic nano‐antenna system sustaining a localized surface plasmon polariton (LSPP). The metallic nano‐antenna is assumed to have anharmonicity, reflecting experimentally observed results. The system is driven by a strong, offresonant, and Gaussian pulse laser so that the LSPP exhibits a Mollow triplet spectrum. When the two‐level molecular resonance is tuned to the upper Mollow triplet sideband, the molecular‐level population is inverted. We discuss the population dynamics, the Purcell effect, and the up‐converted luminescence activity of the two‐level molecule. These results indicate the potential applications of the present system in novel coherent light sources. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)