Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots

Nir R. Ben-Haim; Dan Oron

doi:10.1364/OL.33.002089

Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots

Nir R. Ben-Haim, Dan Oron

Weizmann Institute of Science, Israel

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

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 language	English
Pages (from-to)	2089-2091
Number of pages	3
Journal	Optics Letters
Volume	33
Issue number	18
DOIs	https://doi.org/10.1364/OL.33.002089
Publication status	Published - Sep 15 2008

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.1364/OL.33.002089

Fingerprint Dive into the research topics of 'Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots'. Together they form a unique fingerprint.

Cite this

@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 = sep,

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

C2 - 18794940

AN - SCOPUS:54749144650

VL - 33

SP - 2089

EP - 2091

JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

IS - 18

ER -