| HAL : hal-00164600, version 1 |
| arXiv : 0707.3200 |
| Fiche détaillée | Récupérer au format |
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| Enhancing single-molecule photostability by optical feedback from quantum-jump detection |
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| Vincent Jacques 1John Murray 1 |
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| (20/07/2007) |
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| We report an optical technique that yields an enhancement of single-molecule photostability, by greatly suppressing photobleaching pathways which involve photoexcitation from the triplet state. This is accomplished by dynamically switching off the excitation laser when a quantum-jump of the molecule to the triplet state is optically detected. This procedure leads to a lengthened single-molecule observation time and an increased total number of detected photons. The resulting improvement in photostability unambiguously confirms the importance of photoexcitation from the triplet state in photobleaching dynamics, and may allow the investigation of new phenomena at the single-molecule level. |
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| 1 : | Laboratoire de Photonique Quantique et Moléculaire (LPQM) |
| CNRS : UMR8537 – École normale supérieure de Cachan - ENS Cachan | |
| 2 : | Laboratoire d'Énergétique Moléculaire et Macroscopique, Combustion (EM2C) |
| CNRS : UPR288 – Ecole Centrale Paris | |
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| Domaine | : | Physique/Physique Quantique Physique/Physique/Chimie-Physique Physique/Physique/Optique |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00164600, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00164600 | |
| oai:hal.archives-ouvertes.fr:hal-00164600 | |
| Contributeur : François Treussart | |
| Soumis le : Samedi 21 Juillet 2007, 09:07:58 | |
| Dernière modification le : Samedi 21 Juillet 2007, 11:44:30 | |