%0 Journal Article %1 trabesinger2003singlemolecule %A Trabesinger, Werner %A Kramer, Andrei %A Kreiter, Maximilian %A Hecht, Bert %A Wild, Urs P. %D 2003 %J J. Microscopy %K AFM experiment nano-optics near-field single-molecules %N 3 %P 249-253 %R 10.1046/j.1365-2818.2003.01124.x %T Single-molecule near-field optical energy transfer microscopy with dielectric tips %V 209 %X The fluorescence lifetime and the fluorescence rate of single molecules are recorded as a function of the position of a Si3N4 atomic force microscopy tip with respect to the molecule. We observe a decrease of the excited state lifetime and the fluorescence rate when the tip apex is in close proximity to the molecule. These effects are attributed to the fact that the dielectric tip converts non-propagating near-fields to propagating fields within the dielectric tip effectively quenching the fluorescence. The spatial extension of the quenching area is of subwavelength dimensions. The results are discussed in terms of molecular fluorescence in a system of stratified media. The experiment provides surprising new insights into the interactions between a fluorescent molecule and a dielectric tip. The methodology holds promise for applications in ultra high-resolution near-field optical imaging at the level of single fluorophores.

@article{trabesinger2003singlemolecule, abstract = {The fluorescence lifetime and the fluorescence rate of single molecules are recorded as a function of the position of a Si3N4 atomic force microscopy tip with respect to the molecule. We observe a decrease of the excited state lifetime and the fluorescence rate when the tip apex is in close proximity to the molecule. These effects are attributed to the fact that the dielectric tip converts non-propagating near-fields to propagating fields within the dielectric tip effectively quenching the fluorescence. The spatial extension of the quenching area is of subwavelength dimensions. The results are discussed in terms of molecular fluorescence in a system of stratified media. The experiment provides surprising new insights into the interactions between a fluorescent molecule and a dielectric tip. The methodology holds promise for applications in ultra high-resolution near-field optical imaging at the level of single fluorophores.}, added-at = {2020-02-19T10:55:27.000+0100}, author = {Trabesinger, Werner and Kramer, Andrei and Kreiter, Maximilian and Hecht, Bert and Wild, Urs P.}, biburl = {https://www.bibsonomy.org/bibtex/251cd72d35ec29c4303d498b73db93ae7/ep5optics}, day = 18, doi = {10.1046/j.1365-2818.2003.01124.x}, file = {Snapshot:C\:\\Users\\scherzad\\Zotero\\storage\\CNF8U9AE\\j.1365-2818.2003.01124.html:text/html;Trabesinger et al. - 2003 - Single-molecule near-field optical energy transfer.pdf:C\:\\Users\\scherzad\\Zotero\\storage\\U5B2VEE3\\Trabesinger et al. - 2003 - Single-molecule near-field optical energy transfer.pdf:application/pdf}, interhash = {d9d6b08d312a523d4e27f58aed2035ef}, intrahash = {51cd72d35ec29c4303d498b73db93ae7}, issn = {1365-2818}, journal = {J. Microscopy}, keywords = {AFM experiment nano-optics near-field single-molecules}, language = {en}, month = {03}, number = 3, pages = {249-253}, timestamp = {2020-02-19T10:55:27.000+0100}, title = {Single-molecule near-field optical energy transfer microscopy with dielectric tips}, urldate = {2020-02-19}, volume = 209, year = 2003 }