Colloidal quantum dots in all-dielectric high-Q pillar microcavities

Matthias Kahl; Tim Thomay; Verena Kohnle; Katja Beha; Jörg Merlein; Matthias Hagner; Andreas Halm; Jan Ziegler; Thomas Nann; Yuri Fedutik; Ulrike Woggon; Mikhail Artemyev; Fabián Pérez-Willard; Alfred Leitenstorfer; Rudolf Bratschitsch

doi:10.1021/nl071812x

Colloidal quantum dots in all-dielectric high-Q pillar microcavities

Matthias Kahl
, Tim Thomay
, Verena Kohnle
, Katja Beha
, Jörg Merlein
, Matthias Hagner
, Andreas Halm
, Jan Ziegler
, Thomas Nann
, Yuri Fedutik
, Ulrike Woggon
, Mikhail Artemyev
, Fabián Pérez-Willard
, Alfred Leitenstorfer
, Rudolf Bratschitsch

Physics

University of Konstanz
University of East Anglia
TU Dortmund University
Belarusian State University
Carl Zeiss SMT AG

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

77 Scopus citations

Abstract

We have fabricated all-dielectric high-Q optical pillar resonators with embedded colloidal CdSe/ZnS quantum dots or rods as light emitters by focused ion beam milling. Three-dimensional light confinement and distinct pillar microcavity modes are observed. Results from a waveguide model for the mode patterns and their spectral positions are in excellent agreement with the experimental data. Cavities with elliptical cross sections show higher quality factors in the short axis direction than do circular resonators of the same cross-sectional area.

Original language	English
Pages (from-to)	2897-2900
Number of pages	4
Journal	Nano Letters
Volume	7
Issue number	9
DOIs	https://doi.org/10.1021/nl071812x
State	Published - Sep 2007

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10.1021/nl071812x

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title = "Colloidal quantum dots in all-dielectric high-Q pillar microcavities",

abstract = "We have fabricated all-dielectric high-Q optical pillar resonators with embedded colloidal CdSe/ZnS quantum dots or rods as light emitters by focused ion beam milling. Three-dimensional light confinement and distinct pillar microcavity modes are observed. Results from a waveguide model for the mode patterns and their spectral positions are in excellent agreement with the experimental data. Cavities with elliptical cross sections show higher quality factors in the short axis direction than do circular resonators of the same cross-sectional area.",

author = "Matthias Kahl and Tim Thomay and Verena Kohnle and Katja Beha and J{\"o}rg Merlein and Matthias Hagner and Andreas Halm and Jan Ziegler and Thomas Nann and Yuri Fedutik and Ulrike Woggon and Mikhail Artemyev and Fabi{\'a}n P{\'e}rez-Willard and Alfred Leitenstorfer and Rudolf Bratschitsch",

year = "2007",

month = sep,

doi = "10.1021/nl071812x",

language = "English",

volume = "7",

pages = "2897--2900",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Colloidal quantum dots in all-dielectric high-Q pillar microcavities

AU - Kahl, Matthias

AU - Thomay, Tim

AU - Kohnle, Verena

AU - Beha, Katja

AU - Merlein, Jörg

AU - Hagner, Matthias

AU - Halm, Andreas

AU - Ziegler, Jan

AU - Nann, Thomas

AU - Fedutik, Yuri

AU - Woggon, Ulrike

AU - Artemyev, Mikhail

AU - Pérez-Willard, Fabián

AU - Leitenstorfer, Alfred

AU - Bratschitsch, Rudolf

PY - 2007/9

Y1 - 2007/9

N2 - We have fabricated all-dielectric high-Q optical pillar resonators with embedded colloidal CdSe/ZnS quantum dots or rods as light emitters by focused ion beam milling. Three-dimensional light confinement and distinct pillar microcavity modes are observed. Results from a waveguide model for the mode patterns and their spectral positions are in excellent agreement with the experimental data. Cavities with elliptical cross sections show higher quality factors in the short axis direction than do circular resonators of the same cross-sectional area.

AB - We have fabricated all-dielectric high-Q optical pillar resonators with embedded colloidal CdSe/ZnS quantum dots or rods as light emitters by focused ion beam milling. Three-dimensional light confinement and distinct pillar microcavity modes are observed. Results from a waveguide model for the mode patterns and their spectral positions are in excellent agreement with the experimental data. Cavities with elliptical cross sections show higher quality factors in the short axis direction than do circular resonators of the same cross-sectional area.

UR - https://www.scopus.com/pages/publications/34948871087

U2 - 10.1021/nl071812x

DO - 10.1021/nl071812x

M3 - Article

C2 - 17722946

AN - SCOPUS:34948871087

SN - 1530-6984

VL - 7

SP - 2897

EP - 2900

JO - Nano Letters

JF - Nano Letters

IS - 9

ER -

Colloidal quantum dots in all-dielectric high-Q pillar microcavities

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