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

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5191561

Filename

5191561