Enhancement of single-molecule fluorescence using a gold nanoparticle as an 
optical nanoantenna

Kuehn, Sergei; Hakanson, Ulf; Rogobete, Lavinia; Sandoghdar, Vahid

doi:10.1103/PhysRevLett.97.017402

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

Enhancement of single-molecule fluorescence using a gold nanoparticle as an optical nanoantenna

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Kuehn, S., Hakanson, U., Rogobete, L., & Sandoghdar, V. (2006). Enhancement of single-molecule fluorescence using a gold nanoparticle as an optical nanoantenna. Physical Review Letters, 97:. doi:10.1103/PhysRevLett.97.017402.

引用: https://hdl.handle.net/21.11116/0000-0002-9B62-1

要旨

We investigate the coupling of a single molecule to a single spherical gold nanoparticle acting as a nanoantenna. Using scanning probe technology, we position the particle in front of the molecule with nanometer accuracy and measure a strong enhancement of more than 20 times in the fluorescence intensity simultaneous to a 20-fold shortening of the excited state lifetime. Comparisons with three-dimensional calculations guide us to decipher the contributions of the excitation enhancement, spontaneous emission modification, and quenching. Furthermore, we provide direct evidence for the role of the particle plasmon resonance in the molecular excitation and emission processes.