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Control of single-molecule fluorescence dynamics by stimulated emission depletion

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posted on 2023-06-07, 21:56 authored by Mark Osborne, Richard J Marsh, Angus J Bain
The feasibility of manipulating the single molecule absorption-emission cycle using picosecond stimulated emission depletion (STED) is investigated using a stochastic computer simulation. In the simulation the molecule is subjected to repeated excitation and depletion events using time delayed pairs of excitation (PUMP) and depletion (DUMP) pulses derived from a high repetition rate pulsed laser system. The model is used to demonstrate that a significant and even substantial reduction in the occurrence of 'dark states' in the fluorescence emission can be achieved using stimulated emission depletion. Variation in the PUMP-DUMP window allows precise control of the fluorescence yield with substantial increases in the fluorescence intensity observed at early PUMP-DUMP delays.

History

Publication status

  • Published

ISSN

0277-786X

Publisher

SPIE-INT SOC OPTICAL ENGINEERING

Volume

5222

Page range

78-86

Presentation Type

  • paper

Event name

Conference on Nanocrystals and Organic and Hybrid Nanomaterials. SPIE-international Proceeding of the Society of Optical Engineering

Event location

SAN DIEGO, CA

Event type

conference

ISBN

0-8194-5095-2

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • Yes

Editors

DL Andrews, CYC Lee, AN Cartwright, Z Gaburro

Legacy Posted Date

2012-02-06

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