Two-photon quantum dot excitation during optical trapping

Liselotte Jauffred Pedersen; Lene Broeng Oddershede

doi:10.1021/nl100924z

Two-photon quantum dot excitation during optical trapping

Liselotte Jauffred Pedersen, Lene Broeng Oddershede

60 Citations (Scopus)

Abstract

A single CW infrared laser beam can simultaneously trap and excite an individual colloidal quantum dot. Though the laser light is relatively weak, the excitation occurs through two-photon absorption. This finding eliminates the demand for an excitation light source in addition to a trapping laser in nanoscale experiments with simultaneous force-manipulation and quantum dot visualization. Also, we demonstrate that optical trapping efficiencies of individual quantum dots do not correlate with their emission wavelength or physical size.

Original language	English
Journal	Nano Letters
Volume	10
Issue number	5
Pages (from-to)	1927-1930
Number of pages	3
ISSN	1530-6984
DOIs	https://doi.org/10.1021/nl100924z
Publication status	Published - 12 May 2010

Access to Document

10.1021/nl100924z

Cite this

@article{987049fd46e44c00b1ab074b01a86234,

title = "Two-photon quantum dot excitation during optical trapping",

abstract = "A single CW infrared laser beam can simultaneously trap and excite an individual colloidal quantum dot. Though the laser light is relatively weak, the excitation occurs through two-photon absorption. This finding eliminates the demand for an excitation light source in addition to a trapping laser in nanoscale experiments with simultaneous force-manipulation and quantum dot visualization. Also, we demonstrate that optical trapping efficiencies of individual quantum dots do not correlate with their emission wavelength or physical size.",

author = "Pedersen, {Liselotte Jauffred} and Oddershede, {Lene Broeng}",

year = "2010",

month = may,

day = "12",

doi = "10.1021/nl100924z",

language = "English",

volume = "10",

pages = "1927--1930",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "5",

}

TY - JOUR

T1 - Two-photon quantum dot excitation during optical trapping

AU - Pedersen, Liselotte Jauffred

AU - Oddershede, Lene Broeng

PY - 2010/5/12

Y1 - 2010/5/12

N2 - A single CW infrared laser beam can simultaneously trap and excite an individual colloidal quantum dot. Though the laser light is relatively weak, the excitation occurs through two-photon absorption. This finding eliminates the demand for an excitation light source in addition to a trapping laser in nanoscale experiments with simultaneous force-manipulation and quantum dot visualization. Also, we demonstrate that optical trapping efficiencies of individual quantum dots do not correlate with their emission wavelength or physical size.

AB - A single CW infrared laser beam can simultaneously trap and excite an individual colloidal quantum dot. Though the laser light is relatively weak, the excitation occurs through two-photon absorption. This finding eliminates the demand for an excitation light source in addition to a trapping laser in nanoscale experiments with simultaneous force-manipulation and quantum dot visualization. Also, we demonstrate that optical trapping efficiencies of individual quantum dots do not correlate with their emission wavelength or physical size.

U2 - 10.1021/nl100924z

DO - 10.1021/nl100924z

M3 - Journal article

C2 - 20402477

SN - 1530-6984

VL - 10

SP - 1927

EP - 1930

JO - Nano Letters

JF - Nano Letters

IS - 5

ER -

Two-photon quantum dot excitation during optical trapping

Abstract

Access to Document

Fingerprint

Cite this