Title :
Drastic enhancement of optical response in a molecular dark state by a designed light field with metal nanostructures
Author :
Iida, Takuya ; Ishihara, Hajime
Author_Institution :
Dept. of Phys. & Electron., Osaka Prefecture Univ., Sakai, Japan
Abstract :
In this contribution, the linear optical response of a molecule near a metal nanogap (MNG) is theoretically studied.In order to show the contribution of a dark state, the response light field on a dimer molecule near a MNG is evaluated based on the discretized integral form of Maxwell equation. The obtained results indicate the possibility of controlling the selection rule of molecular dark states and greatly enhance its one photon excitation probability by designed light field with metal nanostructures. These will open the way to the unconventional types of one photon chemical reaction and single molecule spectroscopy related to a molecular dark states based on the spatial interplay between localized light field and molecular wave function.
Keywords :
Maxwell equations; dark states; molecule-photon collisions; nanophotonics; nanostructured materials; optical control; photoexcitation; Au; Maxwell equation; dimer molecule; discretized integral form; metal nanogap; metal nanostructures; molecular dark state; one photon excitation probability; optical response; response light field; Chemicals; Dark states; Integral equations; Lighting control; Maxwell equations; Nanostructures; Optical control; Optical design; Spectroscopy; Wave functions;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5191561
