Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots

Nir R. Ben-Haim, Dan Oron

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Optical sectioning is performed by collecting the fluorescent emission of two-exciton states in colloidal quantum dots. The two-exciton state is created by two consecutive resonant absorption events, thus requiring unprecedented low excitation energy and peak powers as low as 106 W/cm2. The depth resolution is shown to be equivalent to that of standard multiphoton microscopy, and it was found to deteriorate only slowly as saturation of the two-exciton state is approached, owing to signal contribution from higher excitonic states.

Original languageEnglish
Pages (from-to)2089-2091
Number of pages3
JournalOptics Letters
Volume33
Issue number18
DOIs
Publication statusPublished - Sep 15 2008

Fingerprint

ladders
quantum dots
excitons
microscopy
saturation
fluorescence
excitation
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots. / Ben-Haim, Nir R.; Oron, Dan.

In: Optics Letters, Vol. 33, No. 18, 15.09.2008, p. 2089-2091.

Research output: Contribution to journalArticle

@article{fef421cdea0b4b9eb2ccc02dfc22e23d,
title = "Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots",
abstract = "Optical sectioning is performed by collecting the fluorescent emission of two-exciton states in colloidal quantum dots. The two-exciton state is created by two consecutive resonant absorption events, thus requiring unprecedented low excitation energy and peak powers as low as 106 W/cm2. The depth resolution is shown to be equivalent to that of standard multiphoton microscopy, and it was found to deteriorate only slowly as saturation of the two-exciton state is approached, owing to signal contribution from higher excitonic states.",
author = "Ben-Haim, {Nir R.} and Dan Oron",
year = "2008",
month = "9",
day = "15",
doi = "10.1364/OL.33.002089",
language = "English",
volume = "33",
pages = "2089--2091",
journal = "Optics Letters",
issn = "0146-9592",
publisher = "The Optical Society",
number = "18",

}

TY - JOUR

T1 - Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots

AU - Ben-Haim, Nir R.

AU - Oron, Dan

PY - 2008/9/15

Y1 - 2008/9/15

N2 - Optical sectioning is performed by collecting the fluorescent emission of two-exciton states in colloidal quantum dots. The two-exciton state is created by two consecutive resonant absorption events, thus requiring unprecedented low excitation energy and peak powers as low as 106 W/cm2. The depth resolution is shown to be equivalent to that of standard multiphoton microscopy, and it was found to deteriorate only slowly as saturation of the two-exciton state is approached, owing to signal contribution from higher excitonic states.

AB - Optical sectioning is performed by collecting the fluorescent emission of two-exciton states in colloidal quantum dots. The two-exciton state is created by two consecutive resonant absorption events, thus requiring unprecedented low excitation energy and peak powers as low as 106 W/cm2. The depth resolution is shown to be equivalent to that of standard multiphoton microscopy, and it was found to deteriorate only slowly as saturation of the two-exciton state is approached, owing to signal contribution from higher excitonic states.

UR - http://www.scopus.com/inward/record.url?scp=54749144650&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54749144650&partnerID=8YFLogxK

U2 - 10.1364/OL.33.002089

DO - 10.1364/OL.33.002089

M3 - Article

VL - 33

SP - 2089

EP - 2091

JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

IS - 18

ER -