Quantum jumps of single molecules at room temperature

T. Ha; Th Enderle; D. S. Chemla; P. R. Selvin; S. Weiss

doi:10.1016/S0009-2614(97)00440-5

Quantum jumps of single molecules at room temperature

T. Ha, Th Enderle, D. S. Chemla, P. R. Selvin, S. Weiss

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The room temperature dynamics of single fluorescent dye molecules adsorbed on dry surfaces was investigated with submillisecond time resolution. Rapid turn-on and off events that satisfy stochastic statistics of quantum jumps were observed. These jumps were most likely intersystem crossing transitions to the triplet state, individually resolved due to the extended triplet state lifetime τ_off in the dry condition. Saturation study of such single molecules confirmed the extended τ_off. Distributions in intersystem crossing yield Y_ISC and in τ_off, probably due to different local environment, were measured. Moreover, individual molecules exhibited abrupt changes in τ_off and Y_ISC, correlated with spectral changes of the molecular emission.

Original language	English (US)
Pages (from-to)	1-5
Number of pages	5
Journal	Chemical Physics Letters
Volume	271
Issue number	1-3
DOIs	https://doi.org/10.1016/S0009-2614(97)00440-5
State	Published - Jun 6 1997

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

Online availability

10.1016/S0009-2614(97)00440-5

Library availability

Discover UIUC Full Text

Cite this

@article{edf9bdc0ce6549fc93b36deb531ebdbc,

title = "Quantum jumps of single molecules at room temperature",

abstract = "The room temperature dynamics of single fluorescent dye molecules adsorbed on dry surfaces was investigated with submillisecond time resolution. Rapid turn-on and off events that satisfy stochastic statistics of quantum jumps were observed. These jumps were most likely intersystem crossing transitions to the triplet state, individually resolved due to the extended triplet state lifetime τoff in the dry condition. Saturation study of such single molecules confirmed the extended τoff. Distributions in intersystem crossing yield YISC and in τoff, probably due to different local environment, were measured. Moreover, individual molecules exhibited abrupt changes in τoff and YISC, correlated with spectral changes of the molecular emission.",

author = "T. Ha and Th Enderle and Chemla, {D. S.} and Selvin, {P. R.} and S. Weiss",

note = "Funding Information: This research was supported by the Laboratory Directed Research and Development Program of Lawrence Berkeley National Laboratory under US Department of Energy, Contract No. DE-AC03-76SF00098 and by the Office of Naval Research, Contract No. N00014-95-F-0099.",

year = "1997",

month = jun,

day = "6",

doi = "10.1016/S0009-2614(97)00440-5",

language = "English (US)",

volume = "271",

pages = "1--5",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "1-3",

}

TY - JOUR

T1 - Quantum jumps of single molecules at room temperature

AU - Ha, T.

AU - Enderle, Th

AU - Chemla, D. S.

AU - Selvin, P. R.

AU - Weiss, S.

N1 - Funding Information: This research was supported by the Laboratory Directed Research and Development Program of Lawrence Berkeley National Laboratory under US Department of Energy, Contract No. DE-AC03-76SF00098 and by the Office of Naval Research, Contract No. N00014-95-F-0099.

PY - 1997/6/6

Y1 - 1997/6/6

N2 - The room temperature dynamics of single fluorescent dye molecules adsorbed on dry surfaces was investigated with submillisecond time resolution. Rapid turn-on and off events that satisfy stochastic statistics of quantum jumps were observed. These jumps were most likely intersystem crossing transitions to the triplet state, individually resolved due to the extended triplet state lifetime τoff in the dry condition. Saturation study of such single molecules confirmed the extended τoff. Distributions in intersystem crossing yield YISC and in τoff, probably due to different local environment, were measured. Moreover, individual molecules exhibited abrupt changes in τoff and YISC, correlated with spectral changes of the molecular emission.

AB - The room temperature dynamics of single fluorescent dye molecules adsorbed on dry surfaces was investigated with submillisecond time resolution. Rapid turn-on and off events that satisfy stochastic statistics of quantum jumps were observed. These jumps were most likely intersystem crossing transitions to the triplet state, individually resolved due to the extended triplet state lifetime τoff in the dry condition. Saturation study of such single molecules confirmed the extended τoff. Distributions in intersystem crossing yield YISC and in τoff, probably due to different local environment, were measured. Moreover, individual molecules exhibited abrupt changes in τoff and YISC, correlated with spectral changes of the molecular emission.

UR - http://www.scopus.com/inward/record.url?scp=0031555982&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031555982&partnerID=8YFLogxK

U2 - 10.1016/S0009-2614(97)00440-5

DO - 10.1016/S0009-2614(97)00440-5

M3 - Article

AN - SCOPUS:0031555982

SN - 0009-2614

VL - 271

SP - 1

EP - 5

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Quantum jumps of single molecules at room temperature

Abstract

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this