Relaxation time mapping of single quantum dots and substrate background fluorescence

E. Pshenay-Severin; I. Mukhin; S. Fasold; R. Geiss; A. Steinbrück; R. Grange; A. Chipouline; T. Pertsch

doi:10.1134/S0021364015150084

Relaxation time mapping of single quantum dots and substrate background fluorescence

E. Pshenay-Severin^*, I. Mukhin, S. Fasold, R. Geiss, A. Steinbrück, R. Grange, A. Chipouline, T. Pertsch

^*Corresponding author for this work

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

Abstract

We experimentally investigated the role of background signal in time resolved photoluminescence experiments with single quantum dots on substrates. We show that the background fluorescence signal from thin gold films fabricated by electron-beam evaporation and from Al₂O₃ layers fabricated by atomic layer deposition have to be taken into consideration in experiments on the single photon level. Though all investigated components can be distinguished by their photoluminescence decay rates, the presence of the background signal prevents the observation of photon antibunching from single quantum dots. Moreover, a single quantum dot acts as a hot spot enabling the plasmon supported fluorescence enhancement of gold.

Original language	English
Pages (from-to)	161-166
Number of pages	6
Journal	JETP Letters
Volume	102
Issue number	3
DOIs	https://doi.org/10.1134/S0021364015150084
Publication status	Published - 1 Aug 2015

Access to Document

10.1134/S0021364015150084

Cite this

@article{6a15183aff6842858ecb4dcf44a77029,

title = "Relaxation time mapping of single quantum dots and substrate background fluorescence",

abstract = "We experimentally investigated the role of background signal in time resolved photoluminescence experiments with single quantum dots on substrates. We show that the background fluorescence signal from thin gold films fabricated by electron-beam evaporation and from Al2O3 layers fabricated by atomic layer deposition have to be taken into consideration in experiments on the single photon level. Though all investigated components can be distinguished by their photoluminescence decay rates, the presence of the background signal prevents the observation of photon antibunching from single quantum dots. Moreover, a single quantum dot acts as a hot spot enabling the plasmon supported fluorescence enhancement of gold.",

author = "E. Pshenay-Severin and I. Mukhin and S. Fasold and R. Geiss and A. Steinbr{\"u}ck and R. Grange and A. Chipouline and T. Pertsch",

note = "Publisher Copyright: {\textcopyright} 2015, Pleiades Publishing, Inc.",

year = "2015",

month = aug,

day = "1",

doi = "10.1134/S0021364015150084",

language = "English",

volume = "102",

pages = "161--166",

journal = "JETP Letters",

issn = "0021-3640",

publisher = "Pleiades Publishing",

number = "3",

}

TY - JOUR

T1 - Relaxation time mapping of single quantum dots and substrate background fluorescence

AU - Pshenay-Severin, E.

AU - Mukhin, I.

AU - Fasold, S.

AU - Geiss, R.

AU - Steinbrück, A.

AU - Grange, R.

AU - Chipouline, A.

AU - Pertsch, T.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - We experimentally investigated the role of background signal in time resolved photoluminescence experiments with single quantum dots on substrates. We show that the background fluorescence signal from thin gold films fabricated by electron-beam evaporation and from Al2O3 layers fabricated by atomic layer deposition have to be taken into consideration in experiments on the single photon level. Though all investigated components can be distinguished by their photoluminescence decay rates, the presence of the background signal prevents the observation of photon antibunching from single quantum dots. Moreover, a single quantum dot acts as a hot spot enabling the plasmon supported fluorescence enhancement of gold.

AB - We experimentally investigated the role of background signal in time resolved photoluminescence experiments with single quantum dots on substrates. We show that the background fluorescence signal from thin gold films fabricated by electron-beam evaporation and from Al2O3 layers fabricated by atomic layer deposition have to be taken into consideration in experiments on the single photon level. Though all investigated components can be distinguished by their photoluminescence decay rates, the presence of the background signal prevents the observation of photon antibunching from single quantum dots. Moreover, a single quantum dot acts as a hot spot enabling the plasmon supported fluorescence enhancement of gold.

UR - http://www.scopus.com/inward/record.url?scp=84945200722&partnerID=8YFLogxK

U2 - 10.1134/S0021364015150084

DO - 10.1134/S0021364015150084

M3 - Article

SN - 0021-3640

VL - 102

SP - 161

EP - 166

JO - JETP Letters

JF - JETP Letters

IS - 3

ER -

Relaxation time mapping of single quantum dots and substrate background fluorescence

Abstract

Access to Document

Other files and links

Fingerprint

Cite this