Published January 3, 1994
| Version v1
Journal article
Single molecule detection and photochemistry on a surface using near-field optical excitation
- 1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Description
We report the first photobleaching experiments of single molecules on a surface. Single molecules of rhodamine 6G are detected on a silica surface under ambient conditions using near-field scanning optical microscopy. Photobleaching of an individual molecule appears as an abrupt disappearance of fluorescence after seconds of constant excitation. Other reversible, upward and downward changes in fluorescence are observed, possibly due to reorientation of molecules on the surface
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 72
- Journal Issue
- 1
- Journal Page Range
- p. 160-163.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 25046201
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS; S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ADSORPTION; BLEACHING; FLUORESCENCE SPECTROSCOPY; MEASURING METHODS; MICROSCOPY; MOLECULAR STRUCTURE; MOLECULES; PHOTOCHEMISTRY; RHODAMINES; SILICON OXIDES; SURFACE PROPERTIES
- Descriptors DEC
- AMINES; CARBOXYLIC ACIDS; CHALCOGENIDES; CHEMISTRY; DYES; EMISSION SPECTROSCOPY; HETEROCYCLIC ACIDS; HETEROCYCLIC COMPOUNDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; REAGENTS; SILICON COMPOUNDS; SORPTION; SPECTROSCOPY