Single-molecule near-field optical energy transfer microscopy
The nano-optical interaction between a sharp tip and a single dipolar emitter is investigated. Changes of the excited state lifetime and the fluorescence rate of single molecules are recorded simultaneously as a function of the tip position relative to the molecule. A subdiffraction-limited area of...
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| Veröffentlicht in: | Applied physics letters 2002-09, Vol.81 (11), p.2118-2120 |
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| container_end_page | 2120 |
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| container_issue | 11 |
| container_start_page | 2118 |
| container_title | Applied physics letters |
| container_volume | 81 |
| creator | Trabesinger, W. Kramer, A. Kreiter, M. Hecht, B. Wild, U. P. |
| description | The nano-optical interaction between a sharp tip and a single dipolar emitter is investigated. Changes of the excited state lifetime and the fluorescence rate of single molecules are recorded simultaneously as a function of the tip position relative to the molecule. A subdiffraction-limited area of decreased fluorescence and shortened lifetime is observed for gold-coated Si3N4 tips. The results are discussed in terms of molecular fluorescence in a system of stratified media. The outlined methodology holds promise for applications in ultrahigh-resolution near-field optical imaging at the level of single fluorophores. |
| doi_str_mv | 10.1063/1.1506952 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 2002-09, Vol.81 (11), p.2118-2120 |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_1506952 |
| source | AIP Journals Complete; AIP Digital Archive |
| title | Single-molecule near-field optical energy transfer microscopy |
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