---
_id: '48599'
abstract:
- lang: eng
text: AbstractThe biexciton‐exciton emission cascade
commonly used in quantum‐dot systems to generate polarization entanglement yields
photons with intrinsically limited indistinguishability. In the present work,
it focuses on the generation of pairs of photons with high degrees of polarization
entanglement and simultaneously high indistinguishability. It achieves this goal
by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates
that a suitably tailored circular Bragg reflector fulfills the requirements of
sufficient selective Purcell enhancement of biexciton emission paired with spectrally
broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical
study combines (i) the optimization of realistic photonic structures solving Maxwell's
equations from which model parameters are extracted as input for (ii) microscopic
simulations of quantum‐dot cavity excitation dynamics with full access to photon
properties. It reports non‐trivial dependencies on system parameters and use the
predictive power of the combined theoretical approach to determine the optimal
range of Purcell enhancement that maximizes indistinguishability and entanglement
to near unity values, here specifically for the telecom C‐band at 1550 nm.
author:
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Dustin
full_name: Siebert, Dustin
last_name: Siebert
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch D, Siebert D, Jöns K, Förstner J, Schumacher S. On‐Demand Indistinguishable
and Entangled Photons Using Tailored Cavity Designs. Advanced Quantum Technologies.
Published online 2023. doi:10.1002/qute.202300142
apa: Bauch, D., Siebert, D., Jöns, K., Förstner, J., & Schumacher, S. (2023).
On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.
Advanced Quantum Technologies. https://doi.org/10.1002/qute.202300142
bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand
Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, DOI={10.1002/qute.202300142}, journal={Advanced
Quantum Technologies}, publisher={Wiley}, author={Bauch, David and Siebert, Dustin
and Jöns, Klaus and Förstner, Jens and Schumacher, Stefan}, year={2023} }'
chicago: Bauch, David, Dustin Siebert, Klaus Jöns, Jens Förstner, and Stefan Schumacher.
“On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.”
Advanced Quantum Technologies, 2023. https://doi.org/10.1002/qute.202300142.
ieee: 'D. Bauch, D. Siebert, K. Jöns, J. Förstner, and S. Schumacher, “On‐Demand
Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” Advanced
Quantum Technologies, 2023, doi: 10.1002/qute.202300142.'
mla: Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using
Tailored Cavity Designs.” Advanced Quantum Technologies, Wiley, 2023, doi:10.1002/qute.202300142.
short: D. Bauch, D. Siebert, K. Jöns, J. Förstner, S. Schumacher, Advanced Quantum
Technologies (2023).
date_created: 2023-11-03T10:07:38Z
date_updated: 2023-12-21T10:41:17Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '623'
doi: 10.1002/qute.202300142
keyword:
- tet_topic_qd
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://onlinelibrary.wiley.com/doi/10.1002/qute.202300142
oa: '1'
project:
- _id: '173'
grant_number: '231447078'
name: 'TRR 142 - C09: TRR 142 - Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
bei Telekom Wellenlängen (C09*)'
- _id: '167'
grant_number: '231447078'
name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle
eines photonischen Quantensystems (B06*)'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Advanced Quantum Technologies
publication_identifier:
issn:
- 2511-9044
- 2511-9044
publication_status: published
publisher: Wiley
related_material:
record:
- id: '43246'
relation: earlier_version
status: public
status: public
title: On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs
type: journal_article
user_id: '158'
year: '2023'
...
---
_id: '43246'
abstract:
- lang: eng
text: The biexciton-exciton emission cascade commonly used in quantum-dot systems
to generate polarization entanglement yields photons with intrinsically limited
indistinguishability. In the present work we focus on the generation of pairs
of photons with high degrees of polarization entanglement and simultaneously high
indistinguishibility. We achieve this goal by selectively reducing the biexciton
lifetime with an optical resonator. We demonstrate that a suitably tailored circular
Bragg reflector fulfills the requirements of sufficient selective Purcell enhancement
of biexciton emission paired with spectrally broad photon extraction and two-fold
degenerate optical modes. Our in-depth theoretical study combines (i) the optimization
of realistic photonic structures solving Maxwell's equations from which model
parameters are extracted as input for (ii) microscopic simulations of quantum-dot
cavity excitation dynamics with full access to photon properties. We report non-trivial
dependencies on system parameters and use the predictive power of our combined
theoretical approach to determine the optimal range of Purcell enhancement that
maximizes indistinguishability and entanglement to near unity values in the telecom
C-band at $1550\,\mathrm{nm}$.
author:
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Dustin
full_name: Siebert, Dustin
last_name: Siebert
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch D, Siebert D, Jöns K, Förstner J, Schumacher S. On-demand indistinguishable
and entangled photons at telecom frequencies using tailored cavity designs. Published
online 2023.
apa: Bauch, D., Siebert, D., Jöns, K., Förstner, J., & Schumacher, S. (2023).
On-demand indistinguishable and entangled photons at telecom frequencies using
tailored cavity designs.
bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On-demand
indistinguishable and entangled photons at telecom frequencies using tailored
cavity designs}, author={Bauch, David and Siebert, Dustin and Jöns, Klaus and
Förstner, Jens and Schumacher, Stefan}, year={2023} }'
chicago: Bauch, David, Dustin Siebert, Klaus Jöns, Jens Förstner, and Stefan Schumacher.
“On-Demand Indistinguishable and Entangled Photons at Telecom Frequencies Using
Tailored Cavity Designs,” 2023.
ieee: D. Bauch, D. Siebert, K. Jöns, J. Förstner, and S. Schumacher, “On-demand
indistinguishable and entangled photons at telecom frequencies using tailored
cavity designs.” 2023.
mla: Bauch, David, et al. On-Demand Indistinguishable and Entangled Photons at
Telecom Frequencies Using Tailored Cavity Designs. 2023.
short: D. Bauch, D. Siebert, K. Jöns, J. Förstner, S. Schumacher, (2023).
date_created: 2023-03-31T13:22:05Z
date_updated: 2023-12-21T10:41:17Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '15'
- _id: '35'
- _id: '170'
- _id: '297'
keyword:
- tet_topic_phc
- tet_topic_qd
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/pdf/2303.13871.pdf
oa: '1'
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '173'
grant_number: '231447078'
name: 'TRR 142 - C09: TRR 142 - Subproject C09'
- _id: '167'
grant_number: '231447078'
name: 'TRR 142 - B06: TRR 142 - Subproject B06'
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
related_material:
record:
- id: '48599'
relation: later_version
status: public
status: public
title: On-demand indistinguishable and entangled photons at telecom frequencies using
tailored cavity designs
type: preprint
user_id: '16199'
year: '2023'
...
---
_id: '27099'
abstract:
- lang: eng
text: In our work, we have engineered low capacitance single quantum dot photodiodes
as sensor devices for the optoelectronic sampling of ultrafast electric signals.
By the Stark effect, a time-dependent electric signal is converted into a time-dependent
shift of the transition energy. This shift is measured accurately by resonant
ps laser spectroscopy with photocurrent detection. In our experiments, we sample
the laser synchronous output pulse of an ultrafast CMOS circuit with high resolution.
With our quantum dot sensor device, we were able to sample transients below 20
ps with a voltage resolution in the mV-range.
author:
- first_name: Alex
full_name: Widhalm, Alex
last_name: Widhalm
- first_name: Sebastian
full_name: Krehs, Sebastian
last_name: Krehs
- first_name: Dustin
full_name: Siebert, Dustin
last_name: Siebert
- first_name: Nand Lal
full_name: Sharma, Nand Lal
last_name: Sharma
- first_name: Timo
full_name: Langer, Timo
last_name: Langer
- first_name: Björn
full_name: Jonas, Björn
last_name: Jonas
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Andreas
full_name: Thiede, Andreas
id: '538'
last_name: Thiede
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Widhalm A, Krehs S, Siebert D, et al. Optoelectronic sampling of ultrafast
electric transients with single quantum dots. Applied Physics Letters.
2021;119:181109. doi:10.1063/5.0061358
apa: Widhalm, A., Krehs, S., Siebert, D., Sharma, N. L., Langer, T., Jonas, B.,
Reuter, D., Thiede, A., Förstner, J., & Zrenner, A. (2021). Optoelectronic
sampling of ultrafast electric transients with single quantum dots. Applied
Physics Letters, 119, 181109. https://doi.org/10.1063/5.0061358
bibtex: '@article{Widhalm_Krehs_Siebert_Sharma_Langer_Jonas_Reuter_Thiede_Förstner_Zrenner_2021,
title={Optoelectronic sampling of ultrafast electric transients with single quantum
dots}, volume={119}, DOI={10.1063/5.0061358},
journal={Applied Physics Letters}, author={Widhalm, Alex and Krehs, Sebastian
and Siebert, Dustin and Sharma, Nand Lal and Langer, Timo and Jonas, Björn and
Reuter, Dirk and Thiede, Andreas and Förstner, Jens and Zrenner, Artur}, year={2021},
pages={181109} }'
chicago: 'Widhalm, Alex, Sebastian Krehs, Dustin Siebert, Nand Lal Sharma, Timo
Langer, Björn Jonas, Dirk Reuter, Andreas Thiede, Jens Förstner, and Artur Zrenner.
“Optoelectronic Sampling of Ultrafast Electric Transients with Single Quantum
Dots.” Applied Physics Letters 119 (2021): 181109. https://doi.org/10.1063/5.0061358.'
ieee: 'A. Widhalm et al., “Optoelectronic sampling of ultrafast electric
transients with single quantum dots,” Applied Physics Letters, vol. 119,
p. 181109, 2021, doi: 10.1063/5.0061358.'
mla: Widhalm, Alex, et al. “Optoelectronic Sampling of Ultrafast Electric Transients
with Single Quantum Dots.” Applied Physics Letters, vol. 119, 2021, p.
181109, doi:10.1063/5.0061358.
short: A. Widhalm, S. Krehs, D. Siebert, N.L. Sharma, T. Langer, B. Jonas, D. Reuter,
A. Thiede, J. Förstner, A. Zrenner, Applied Physics Letters 119 (2021) 181109.
date_created: 2021-11-03T10:32:03Z
date_updated: 2023-01-24T11:11:54Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '61'
- _id: '51'
doi: 10.1063/5.0061358
file:
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2021-11-04T13:46:27Z
date_updated: 2021-11-04T13:46:27Z
embargo: 2022-11-04
embargo_to: open_access
file_id: '27157'
file_name: 2021-11 Widhalm - APL - Optoelectronic sampling of ultrafast electric
transients with single quantum dots (published version).pdf
file_size: 1999652
relation: main_file
file_date_updated: 2021-11-04T13:46:27Z
has_accepted_license: '1'
intvolume: ' 119'
keyword:
- tet_topic_qd
language:
- iso: eng
page: '181109'
project:
- _id: '74'
name: TRR 142 - Subproject C4
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '60'
name: TRR 142 - Subproject A3
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
- 1077-3118
publication_status: published
status: public
title: Optoelectronic sampling of ultrafast electric transients with single quantum
dots
type: journal_article
user_id: '158'
volume: 119
year: '2021'
...
---
_id: '23816'
abstract:
- lang: eng
text: Employing the ultrafast control of electronic states of a semiconductor quantum
dot in a cavity, we introduce an approach to achieve on-demand emission of single
photons with almost perfect indistinguishability and photon pairs with near ideal
entanglement. Our scheme is based on optical excitation off resonant to a cavity
mode followed by ultrafast control of the electronic states using the time-dependent
quantum-confined Stark effect, which then allows for cavity-resonant emission.
Our theoretical analysis considers cavity-loss mechanisms, the Stark effect, and
phonon-induced dephasing, allowing realistic predictions for finite temperatures.
author:
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Dirk Florian
full_name: Heinze, Dirk Florian
id: '10904'
last_name: Heinze
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch D, Heinze DF, Förstner J, Jöns K, Schumacher S. Ultrafast electric control
of cavity mediated single-photon and photon-pair generation with semiconductor
quantum dots. Physical Review B. 2021;104:085308. doi:10.1103/physrevb.104.085308
apa: Bauch, D., Heinze, D. F., Förstner, J., Jöns, K., & Schumacher, S. (2021).
Ultrafast electric control of cavity mediated single-photon and photon-pair generation
with semiconductor quantum dots. Physical Review B, 104, 085308.
https://doi.org/10.1103/physrevb.104.085308
bibtex: '@article{Bauch_Heinze_Förstner_Jöns_Schumacher_2021, title={Ultrafast electric
control of cavity mediated single-photon and photon-pair generation with semiconductor
quantum dots}, volume={104}, DOI={10.1103/physrevb.104.085308},
journal={Physical Review B}, author={Bauch, David and Heinze, Dirk Florian and
Förstner, Jens and Jöns, Klaus and Schumacher, Stefan}, year={2021}, pages={085308}
}'
chicago: 'Bauch, David, Dirk Florian Heinze, Jens Förstner, Klaus Jöns, and Stefan
Schumacher. “Ultrafast Electric Control of Cavity Mediated Single-Photon and Photon-Pair
Generation with Semiconductor Quantum Dots.” Physical Review B 104 (2021):
085308. https://doi.org/10.1103/physrevb.104.085308.'
ieee: 'D. Bauch, D. F. Heinze, J. Förstner, K. Jöns, and S. Schumacher, “Ultrafast
electric control of cavity mediated single-photon and photon-pair generation with
semiconductor quantum dots,” Physical Review B, vol. 104, p. 085308, 2021,
doi: 10.1103/physrevb.104.085308.'
mla: Bauch, David, et al. “Ultrafast Electric Control of Cavity Mediated Single-Photon
and Photon-Pair Generation with Semiconductor Quantum Dots.” Physical Review
B, vol. 104, 2021, p. 085308, doi:10.1103/physrevb.104.085308.
short: D. Bauch, D.F. Heinze, J. Förstner, K. Jöns, S. Schumacher, Physical Review
B 104 (2021) 085308.
date_created: 2021-09-06T18:02:44Z
date_updated: 2023-04-20T15:33:52Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '429'
- _id: '623'
- _id: '35'
doi: 10.1103/physrevb.104.085308
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2021-09-07T06:32:25Z
date_updated: 2021-09-07T07:43:47Z
file_id: '23818'
file_name: 2021-08 Bauch PhysRevB.104.085308.pdf
file_size: 887439
relation: main_file
file_date_updated: 2021-09-07T07:43:47Z
has_accepted_license: '1'
intvolume: ' 104'
keyword:
- tet_topic_qd
language:
- iso: eng
oa: '1'
page: '085308'
project:
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '60'
name: TRR 142 - Subproject A3
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
status: public
title: Ultrafast electric control of cavity mediated single-photon and photon-pair
generation with semiconductor quantum dots
type: journal_article
user_id: '16199'
volume: 104
year: '2021'
...
---
_id: '17322'
author:
- first_name: Amlan
full_name: Mukherjee, Amlan
last_name: Mukherjee
- first_name: Alex
full_name: Widhalm, Alex
last_name: Widhalm
- first_name: Dustin
full_name: Siebert, Dustin
last_name: Siebert
- first_name: Sebastian
full_name: Krehs, Sebastian
last_name: Krehs
- first_name: Nandlal
full_name: Sharma, Nandlal
last_name: Sharma
- first_name: Andreas
full_name: Thiede, Andreas
id: '538'
last_name: Thiede
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Mukherjee A, Widhalm A, Siebert D, et al. Electrically controlled rapid adiabatic
passage in a single quantum dot. Applied Physics Letters. 2020;116:251103.
doi:10.1063/5.0012257
apa: Mukherjee, A., Widhalm, A., Siebert, D., Krehs, S., Sharma, N., Thiede, A.,
Reuter, D., Förstner, J., & Zrenner, A. (2020). Electrically controlled rapid
adiabatic passage in a single quantum dot. Applied Physics Letters, 116,
251103. https://doi.org/10.1063/5.0012257
bibtex: '@article{Mukherjee_Widhalm_Siebert_Krehs_Sharma_Thiede_Reuter_Förstner_Zrenner_2020,
title={Electrically controlled rapid adiabatic passage in a single quantum dot},
volume={116}, DOI={10.1063/5.0012257},
journal={Applied Physics Letters}, author={Mukherjee, Amlan and Widhalm, Alex
and Siebert, Dustin and Krehs, Sebastian and Sharma, Nandlal and Thiede, Andreas
and Reuter, Dirk and Förstner, Jens and Zrenner, Artur}, year={2020}, pages={251103}
}'
chicago: 'Mukherjee, Amlan, Alex Widhalm, Dustin Siebert, Sebastian Krehs, Nandlal
Sharma, Andreas Thiede, Dirk Reuter, Jens Förstner, and Artur Zrenner. “Electrically
Controlled Rapid Adiabatic Passage in a Single Quantum Dot.” Applied Physics
Letters 116 (2020): 251103. https://doi.org/10.1063/5.0012257.'
ieee: 'A. Mukherjee et al., “Electrically controlled rapid adiabatic passage
in a single quantum dot,” Applied Physics Letters, vol. 116, p. 251103,
2020, doi: 10.1063/5.0012257.'
mla: Mukherjee, Amlan, et al. “Electrically Controlled Rapid Adiabatic Passage in
a Single Quantum Dot.” Applied Physics Letters, vol. 116, 2020, p. 251103,
doi:10.1063/5.0012257.
short: A. Mukherjee, A. Widhalm, D. Siebert, S. Krehs, N. Sharma, A. Thiede, D.
Reuter, J. Förstner, A. Zrenner, Applied Physics Letters 116 (2020) 251103.
date_created: 2020-06-25T12:31:42Z
date_updated: 2023-01-24T11:12:09Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '51'
doi: 10.1063/5.0012257
file:
- access_level: request
content_type: application/pdf
creator: fossie
date_created: 2020-06-25T12:45:04Z
date_updated: 2022-01-06T06:53:07Z
embargo: 2021-06-25
embargo_to: open_access
file_id: '17325'
file_name: 2020-06 Widhalm - APL - Electrically controlled RAP in single QD (official).pdf
file_size: 1359326
relation: main_file
file_date_updated: 2022-01-06T06:53:07Z
has_accepted_license: '1'
intvolume: ' 116'
keyword:
- tet_topic_qd
language:
- iso: eng
page: '251103'
project:
- _id: '56'
name: TRR 142 - Project Area C
- _id: '74'
name: TRR 142 - Subproject C4
- _id: '53'
name: TRR 142
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
- 1077-3118
publication_status: published
status: public
title: Electrically controlled rapid adiabatic passage in a single quantum dot
type: journal_article
user_id: '158'
volume: 116
year: '2020'
...
---
_id: '3427'
abstract:
- lang: eng
text: "We report on the coherent phase manipulation of quantum dot excitons by electric
means. For our\r\nexperiments, we use a low capacitance single quantum dot photodiode
which is electrically\r\ncontrolled by a custom designed SiGe:C BiCMOS chip. The
phase manipulation is performed and\r\nquantified in a Ramsey experiment, where
ultrafast transient detuning of the exciton energy is\r\nperformed synchronous
to double pulse p/2 ps laser excitation. We are able to demonstrate\r\nelectrically
controlled phase manipulations with magnitudes up to 3p within 100 ps which is
below\r\nthe dephasing time of the quantum dot exciton."
article_type: original
author:
- first_name: Alex
full_name: Widhalm, Alex
last_name: Widhalm
- first_name: Amlan
full_name: Mukherjee, Amlan
last_name: Mukherjee
- first_name: Sebastian
full_name: Krehs, Sebastian
last_name: Krehs
- first_name: Nandlal
full_name: Sharma, Nandlal
last_name: Sharma
- first_name: Peter
full_name: Kölling, Peter
last_name: Kölling
- first_name: Andreas
full_name: Thiede, Andreas
id: '538'
last_name: Thiede
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Widhalm A, Mukherjee A, Krehs S, et al. Ultrafast electric phase control of
a single exciton qubit. Applied Physics Letters. 2018;112(11):111105. doi:10.1063/1.5020364
apa: Widhalm, A., Mukherjee, A., Krehs, S., Sharma, N., Kölling, P., Thiede, A.,
Reuter, D., Förstner, J., & Zrenner, A. (2018). Ultrafast electric phase control
of a single exciton qubit. Applied Physics Letters, 112(11), 111105.
https://doi.org/10.1063/1.5020364
bibtex: '@article{Widhalm_Mukherjee_Krehs_Sharma_Kölling_Thiede_Reuter_Förstner_Zrenner_2018,
title={Ultrafast electric phase control of a single exciton qubit}, volume={112},
DOI={10.1063/1.5020364}, number={11},
journal={Applied Physics Letters}, author={Widhalm, Alex and Mukherjee, Amlan
and Krehs, Sebastian and Sharma, Nandlal and Kölling, Peter and Thiede, Andreas
and Reuter, Dirk and Förstner, Jens and Zrenner, Artur}, year={2018}, pages={111105}
}'
chicago: 'Widhalm, Alex, Amlan Mukherjee, Sebastian Krehs, Nandlal Sharma, Peter
Kölling, Andreas Thiede, Dirk Reuter, Jens Förstner, and Artur Zrenner. “Ultrafast
Electric Phase Control of a Single Exciton Qubit.” Applied Physics Letters
112, no. 11 (2018): 111105. https://doi.org/10.1063/1.5020364.'
ieee: 'A. Widhalm et al., “Ultrafast electric phase control of a single exciton
qubit,” Applied Physics Letters, vol. 112, no. 11, p. 111105, 2018, doi:
10.1063/1.5020364.'
mla: Widhalm, Alex, et al. “Ultrafast Electric Phase Control of a Single Exciton
Qubit.” Applied Physics Letters, vol. 112, no. 11, 2018, p. 111105, doi:10.1063/1.5020364.
short: A. Widhalm, A. Mukherjee, S. Krehs, N. Sharma, P. Kölling, A. Thiede, D.
Reuter, J. Förstner, A. Zrenner, Applied Physics Letters 112 (2018) 111105.
date_created: 2018-07-05T09:47:26Z
date_updated: 2023-01-24T11:00:08Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '61'
- _id: '51'
doi: 10.1063/1.5020364
file:
- access_level: request
content_type: application/pdf
creator: fossie
date_created: 2018-08-16T07:42:38Z
date_updated: 2022-01-06T06:59:16Z
embargo: 2019-03-01
embargo_to: open_access
file_id: '3914'
file_name: 2018-03 Widhalm APL Ultrafast electric phase control of a single exciton
qubit.pdf
file_size: 923692
relation: main_file
file_date_updated: 2022-01-06T06:59:16Z
has_accepted_license: '1'
intvolume: ' 112'
issue: '11'
keyword:
- tet_topic_qd
language:
- iso: eng
page: '111105'
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '74'
name: TRR 142 - Subproject C4
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
publication_status: published
status: public
title: Ultrafast electric phase control of a single exciton qubit
type: journal_article
user_id: '158'
volume: 112
year: '2018'
...
---
_id: '3888'
abstract:
- lang: eng
text: 'We successfully developed a process to fabricate freestanding cubic aluminium
nitride (c-AlN) membranes containing cubic gallium nitride (c-GaN) quantum dots
(QDs). The samples were grown by plasma assisted molecular beam epitaxy (MBE).
To realize the photonic crystal (PhC) membrane we have chosen a triangular array
of holes. The array was fabricated by electron beam lithography and several steps
of reactive ion etching (RIE) with the help of a hard mask and an undercut of
the active layer. The r/a- ratio of 0.35 was deter- mined by numerical simulations
to obtain a preferably wide photonic band gap. Micro-photoluminescence (μ-PL)
measurements of the photonic crystals, in particular of a H1 and a L3 cavity,
and the emission of the QD ensemble were performed to characterize the samples.
The PhCs show high quality factors of 4400 for the H1 cavity and about 5000/3000
for two different modes of the L3 cavity, respectively. The energy of the fundamental
modes is in good agreement to the numerical simulations. '
article_type: original
author:
- first_name: Sarah
full_name: Blumenthal, Sarah
last_name: Blumenthal
- first_name: Matthias
full_name: Bürger, Matthias
last_name: Bürger
- first_name: Andre
full_name: Hildebrandt, Andre
last_name: Hildebrandt
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Nils
full_name: Weber, Nils
last_name: Weber
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Donat J.
full_name: As, Donat J.
id: '14'
last_name: As
orcid: 0000-0003-1121-3565
citation:
ama: Blumenthal S, Bürger M, Hildebrandt A, et al. Fabrication and characterization
of two-dimensional cubic AlN photonic crystal membranes containing zincblende
GaN quantum dots. physica status solidi (c). 2016;13(5-6):292-296. doi:10.1002/pssc.201600010
apa: Blumenthal, S., Bürger, M., Hildebrandt, A., Förstner, J., Weber, N., Meier,
C., Reuter, D., & As, D. J. (2016). Fabrication and characterization of two-dimensional
cubic AlN photonic crystal membranes containing zincblende GaN quantum dots. Physica
Status Solidi (c), 13(5–6), 292–296. https://doi.org/10.1002/pssc.201600010
bibtex: '@article{Blumenthal_Bürger_Hildebrandt_Förstner_Weber_Meier_Reuter_As_2016,
title={Fabrication and characterization of two-dimensional cubic AlN photonic
crystal membranes containing zincblende GaN quantum dots}, volume={13}, DOI={10.1002/pssc.201600010}, number={5–6},
journal={physica status solidi (c)}, publisher={Wiley}, author={Blumenthal, Sarah
and Bürger, Matthias and Hildebrandt, Andre and Förstner, Jens and Weber, Nils
and Meier, Cedrik and Reuter, Dirk and As, Donat J.}, year={2016}, pages={292–296}
}'
chicago: 'Blumenthal, Sarah, Matthias Bürger, Andre Hildebrandt, Jens Förstner,
Nils Weber, Cedrik Meier, Dirk Reuter, and Donat J. As. “Fabrication and Characterization
of Two-Dimensional Cubic AlN Photonic Crystal Membranes Containing Zincblende
GaN Quantum Dots.” Physica Status Solidi (c) 13, no. 5–6 (2016): 292–96.
https://doi.org/10.1002/pssc.201600010.'
ieee: 'S. Blumenthal et al., “Fabrication and characterization of two-dimensional
cubic AlN photonic crystal membranes containing zincblende GaN quantum dots,”
physica status solidi (c), vol. 13, no. 5–6, pp. 292–296, 2016, doi: 10.1002/pssc.201600010.'
mla: Blumenthal, Sarah, et al. “Fabrication and Characterization of Two-Dimensional
Cubic AlN Photonic Crystal Membranes Containing Zincblende GaN Quantum Dots.”
Physica Status Solidi (c), vol. 13, no. 5–6, Wiley, 2016, pp. 292–96, doi:10.1002/pssc.201600010.
short: S. Blumenthal, M. Bürger, A. Hildebrandt, J. Förstner, N. Weber, C. Meier,
D. Reuter, D.J. As, Physica Status Solidi (c) 13 (2016) 292–296.
date_created: 2018-08-13T09:14:58Z
date_updated: 2023-10-09T09:06:08Z
ddc:
- '530'
department:
- _id: '61'
- _id: '284'
- _id: '290'
- _id: '292'
- _id: '287'
- _id: '35'
- _id: '230'
doi: 10.1002/pssc.201600010
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-13T09:20:05Z
date_updated: 2018-08-13T09:20:05Z
file_id: '3889'
file_name: 2016-04 Blumenthal_et_al_Fabrication and characterization of two-dimensional
cubic AlN photonic crystal membranes containing zincblende GaN quantum dots_physica_status_solidi_(c).pdf
file_size: 1119165
relation: main_file
success: 1
file_date_updated: 2018-08-13T09:20:05Z
has_accepted_license: '1'
intvolume: ' 13'
issue: 5-6
keyword:
- tet_topic_phc
- tet_topic_qd
language:
- iso: eng
page: 292-296
publication: physica status solidi (c)
publication_identifier:
issn:
- 1862-6351
publication_status: published
publisher: Wiley
status: public
title: Fabrication and characterization of two-dimensional cubic AlN photonic crystal
membranes containing zincblende GaN quantum dots
type: journal_article
user_id: '14931'
volume: 13
year: '2016'
...
---
_id: '3900'
abstract:
- lang: eng
text: The coherent state preparation and control of single quantum systems is an
important prerequisite for the implementation of functional quantum devices. Prominent
examples for such systems are semiconductor quantum dots, which exhibit a fine
structure split single exciton state and a V-type three level structure, given
by a common ground state and two distinguishable and separately excitable transitions.
In this work we introduce a novel concept for the preparation of a robust inversion
by the sequential excitation in a V-type system via distinguishable paths.
article_type: original
author:
- first_name: D.
full_name: Mantei, D.
last_name: Mantei
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: S.
full_name: Gordon, S.
last_name: Gordon
- first_name: Y. A.
full_name: Leier, Y. A.
last_name: Leier
- first_name: A. K.
full_name: Rai, A. K.
last_name: Rai
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: A. D.
full_name: Wieck, A. D.
last_name: Wieck
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Mantei D, Förstner J, Gordon S, et al. Robust Population Inversion by Polarization
Selective Pulsed Excitation. Scientific Reports. 2015;5(1):10313. doi:10.1038/srep10313
apa: Mantei, D., Förstner, J., Gordon, S., Leier, Y. A., Rai, A. K., Reuter, D.,
… Zrenner, A. (2015). Robust Population Inversion by Polarization Selective Pulsed
Excitation. Scientific Reports, 5(1), 10313. https://doi.org/10.1038/srep10313
bibtex: '@article{Mantei_Förstner_Gordon_Leier_Rai_Reuter_Wieck_Zrenner_2015, title={Robust
Population Inversion by Polarization Selective Pulsed Excitation}, volume={5},
DOI={10.1038/srep10313}, number={1},
journal={Scientific Reports}, publisher={Springer Nature}, author={Mantei, D.
and Förstner, Jens and Gordon, S. and Leier, Y. A. and Rai, A. K. and Reuter,
Dirk and Wieck, A. D. and Zrenner, Artur}, year={2015}, pages={10313} }'
chicago: 'Mantei, D., Jens Förstner, S. Gordon, Y. A. Leier, A. K. Rai, Dirk Reuter,
A. D. Wieck, and Artur Zrenner. “Robust Population Inversion by Polarization Selective
Pulsed Excitation.” Scientific Reports 5, no. 1 (2015): 10313. https://doi.org/10.1038/srep10313.'
ieee: D. Mantei et al., “Robust Population Inversion by Polarization Selective
Pulsed Excitation,” Scientific Reports, vol. 5, no. 1, p. 10313, 2015.
mla: Mantei, D., et al. “Robust Population Inversion by Polarization Selective Pulsed
Excitation.” Scientific Reports, vol. 5, no. 1, Springer Nature, 2015,
p. 10313, doi:10.1038/srep10313.
short: D. Mantei, J. Förstner, S. Gordon, Y.A. Leier, A.K. Rai, D. Reuter, A.D.
Wieck, A. Zrenner, Scientific Reports 5 (2015) 10313.
date_created: 2018-08-13T10:34:17Z
date_updated: 2022-01-06T06:59:53Z
ddc:
- '530'
department:
- _id: '61'
- _id: '15'
- _id: '292'
- _id: '290'
doi: 10.1038/srep10313
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-13T10:39:14Z
date_updated: 2018-08-21T11:37:12Z
file_id: '3901'
file_name: 2015-05 Mantei,Förstner,Gordon,Leier,Rai,Reuter,Wieck,Zrenner_Robust
Population Inversion by Polarization Selective Pulsed Excitation.pdf
file_size: 1089911
relation: main_file
file_date_updated: 2018-08-21T11:37:12Z
has_accepted_license: '1'
intvolume: ' 5'
issue: '1'
keyword:
- tet_topic_qd
language:
- iso: eng
oa: '1'
page: '10313'
publication: Scientific Reports
publication_identifier:
issn:
- 2045-2322
publication_status: published
publisher: Springer Nature
status: public
title: Robust Population Inversion by Polarization Selective Pulsed Excitation
type: journal_article
urn: '39004'
user_id: '55706'
volume: 5
year: '2015'
...
---
_id: '4360'
abstract:
- lang: ger
text: Die Erfindung betrifft ein Verfahren zur Präparation einer Besetzungsinversion
in einem Quantensystem (Q) mittels Mehrpulsanregung, wobei ein Quantensystem (Q)
umfassend wenigstens einen Quantenpunkt mit zwei orthogonalen Zuständen (/X>,
/Y>), insbesondere die mit zueinander orthogonalen Polarisationen (P1, P2) optisch
anregbar sind, mit einem ersten Laserpuls (L1) beleuchtet wird, welcher zur resonanten
Anregung des ersten (/Y>) der zwei Zustände (/X>, /Y>) eingestellt wird und zeitlich
nachfolgend mit einem zweiten Laserpuls (L2) beleuchtet wird, der zur resonanten
Anregung des zweiten (/X>) der zwei Zustände (/X>, /Y>) eingestellt wird.
- lang: eng
text: The invention relates to a process for the preparation of a population inversion
in a quantum system (Q) by means of multi-pulse excitation, wherein a quantum
system (Q) comprising at least one quantum dot with two orthogonal states (/ X>
/ Y>), particularly the (mutually orthogonal polarizations P1 , P2) are optically
excitable, is illuminated with a first laser pulse (L1) which is (for resonant
excitation of the first (/ Y>) of the two states of / X, / Y>) is set> and temporally
below (with a second laser pulse of (for resonant excitation of the second (/
X>) of the two states of / X, / Y>) is set> L2) is illuminated.
application_date: 2013-07-31
application_number: '102013012682'
author:
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Dirk
full_name: Mantei, Dirk
last_name: Mantei
citation:
ama: Zrenner A, Förstner J, Mantei D. A process for the preparation of a population
inversion in a quantum system using multi-pulse excitation. Published online 2015.
apa: Zrenner, A., Förstner, J., & Mantei, D. (2015). A process for the preparation
of a population inversion in a quantum system using multi-pulse excitation.
bibtex: '@article{Zrenner_Förstner_Mantei_2015, title={A process for the preparation
of a population inversion in a quantum system using multi-pulse excitation}, author={Zrenner,
Artur and Förstner, Jens and Mantei, Dirk}, year={2015} }'
chicago: Zrenner, Artur, Jens Förstner, and Dirk Mantei. “A Process for the Preparation
of a Population Inversion in a Quantum System Using Multi-Pulse Excitation,” 2015.
ieee: A. Zrenner, J. Förstner, and D. Mantei, “A process for the preparation of
a population inversion in a quantum system using multi-pulse excitation.” 2015.
mla: Zrenner, Artur, et al. A Process for the Preparation of a Population Inversion
in a Quantum System Using Multi-Pulse Excitation. 2015.
short: A. Zrenner, J. Förstner, D. Mantei, (2015).
date_created: 2018-09-06T09:48:18Z
date_updated: 2022-04-26T18:01:56Z
department:
- _id: '61'
- _id: '43'
ipc: 'H01S 3/09 '
ipn: DE102013012682B4
keyword:
- tet_topic_qd
main_file_link:
- url: https://patents.google.com/patent/DE102013012682A1/en
publication_date: 2022-03-03
status: public
title: A process for the preparation of a population inversion in a quantum system
using multi-pulse excitation
type: patent
user_id: '158'
year: '2015'
...
---
_id: '3959'
abstract:
- lang: eng
text: Microresonators containing quantum dots find application in devices like single
photon emitters for quantum information technology as well as low threshold laser
devices. We demonstrate the fabrication of 60 nm thin zinc-blende AlN microdisks
including cubic GaN quantum dots using dry chemical etching techniques. Scanning
electron microscopy analysis reveals the morphology with smooth surfaces of the
microdisks. Micro-photoluminescence measurements exhibit optically active quantum
dots. Furthermore this is the first report of resonator modes in the emission
spectrum of a cubic AlN microdisk.
article_type: original
author:
- first_name: M.
full_name: Bürger, M.
last_name: Bürger
- first_name: R.M.
full_name: Kemper, R.M.
last_name: Kemper
- first_name: C.A.
full_name: Bader, C.A.
last_name: Bader
- first_name: M.
full_name: Ruth, M.
last_name: Ruth
- first_name: S.
full_name: Declair, S.
last_name: Declair
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: D.J.
full_name: As, D.J.
last_name: As
citation:
ama: Bürger M, Kemper RM, Bader CA, et al. Cubic GaN quantum dots embedded in zinc-blende
AlN microdisks. Journal of Crystal Growth. 2013;378:287-290. doi:10.1016/j.jcrysgro.2012.12.058
apa: Bürger, M., Kemper, R. M., Bader, C. A., Ruth, M., Declair, S., Meier, C.,
… As, D. J. (2013). Cubic GaN quantum dots embedded in zinc-blende AlN microdisks.
Journal of Crystal Growth, 378, 287–290. https://doi.org/10.1016/j.jcrysgro.2012.12.058
bibtex: '@article{Bürger_Kemper_Bader_Ruth_Declair_Meier_Förstner_As_2013, title={Cubic
GaN quantum dots embedded in zinc-blende AlN microdisks}, volume={378}, DOI={10.1016/j.jcrysgro.2012.12.058},
journal={Journal of Crystal Growth}, publisher={Elsevier BV}, author={Bürger,
M. and Kemper, R.M. and Bader, C.A. and Ruth, M. and Declair, S. and Meier, Cedrik
and Förstner, Jens and As, D.J.}, year={2013}, pages={287–290} }'
chicago: 'Bürger, M., R.M. Kemper, C.A. Bader, M. Ruth, S. Declair, Cedrik Meier,
Jens Förstner, and D.J. As. “Cubic GaN Quantum Dots Embedded in Zinc-Blende AlN
Microdisks.” Journal of Crystal Growth 378 (2013): 287–90. https://doi.org/10.1016/j.jcrysgro.2012.12.058.'
ieee: M. Bürger et al., “Cubic GaN quantum dots embedded in zinc-blende AlN
microdisks,” Journal of Crystal Growth, vol. 378, pp. 287–290, 2013.
mla: Bürger, M., et al. “Cubic GaN Quantum Dots Embedded in Zinc-Blende AlN Microdisks.”
Journal of Crystal Growth, vol. 378, Elsevier BV, 2013, pp. 287–90, doi:10.1016/j.jcrysgro.2012.12.058.
short: M. Bürger, R.M. Kemper, C.A. Bader, M. Ruth, S. Declair, C. Meier, J. Förstner,
D.J. As, Journal of Crystal Growth 378 (2013) 287–290.
date_created: 2018-08-21T07:33:08Z
date_updated: 2022-01-06T07:00:00Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1016/j.jcrysgro.2012.12.058
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-21T07:34:05Z
date_updated: 2018-08-21T07:34:05Z
file_id: '3960'
file_name: 2013-01 Bürger,Kemper,Bader,Ruth,Declair,Meier,Förstner,As_Cubic GaN
quantum dots embedded in zinc-blende AlN microdisks.pdf
file_size: 532153
relation: main_file
success: 1
file_date_updated: 2018-08-21T07:34:05Z
has_accepted_license: '1'
intvolume: ' 378'
keyword:
- tet_topic_qd
- tet_topic_microdisk
language:
- iso: eng
page: 287-290
publication: Journal of Crystal Growth
publication_identifier:
issn:
- 0022-0248
publication_status: published
publisher: Elsevier BV
status: public
title: Cubic GaN quantum dots embedded in zinc-blende AlN microdisks
type: journal_article
user_id: '55706'
volume: 378
year: '2013'
...
---
_id: '3963'
abstract:
- lang: eng
text: "Whispering gallery modes (WGMs) were observed in 60 nm thin cubic AlN microdisk
resonators containing a single layer of non-polar cubic GaN quantum dots. Freestanding
microdisks were patterned by means of electron beam lithography and a two step
reactive ion etching process. Micro-photoluminescence spectroscopy investigations
were performed for optical characterization. We analyzed the mode spacing for
disk diameters ranging from 2-4 lm. Numerical investigations using three dimensional
finite difference time domain calculations were in good agreement\r\nwith the
experimental data. Whispering gallery modes of the radial orders 1 and 2 were
identified by means of simulated mode field distributions."
article_type: original
author:
- first_name: M.
full_name: Bürger, M.
last_name: Bürger
- first_name: M.
full_name: Ruth, M.
last_name: Ruth
- first_name: S.
full_name: Declair, S.
last_name: Declair
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- first_name: Donat Josef
full_name: As, Donat Josef
id: '14'
last_name: As
orcid: 0000-0003-1121-3565
citation:
ama: Bürger M, Ruth M, Declair S, Förstner J, Meier C, As DJ. Whispering gallery
modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots. Applied
Physics Letters. 2013;102(8):081105. doi:10.1063/1.4793653
apa: Bürger, M., Ruth, M., Declair, S., Förstner, J., Meier, C., & As, D. J.
(2013). Whispering gallery modes in zinc-blende AlN microdisks containing non-polar
GaN quantum dots. Applied Physics Letters, 102(8), 081105. https://doi.org/10.1063/1.4793653
bibtex: '@article{Bürger_Ruth_Declair_Förstner_Meier_As_2013, title={Whispering
gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots},
volume={102}, DOI={10.1063/1.4793653},
number={8}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Bürger,
M. and Ruth, M. and Declair, S. and Förstner, Jens and Meier, Cedrik and As, Donat
Josef}, year={2013}, pages={081105} }'
chicago: 'Bürger, M., M. Ruth, S. Declair, Jens Förstner, Cedrik Meier, and Donat
Josef As. “Whispering Gallery Modes in Zinc-Blende AlN Microdisks Containing Non-Polar
GaN Quantum Dots.” Applied Physics Letters 102, no. 8 (2013): 081105. https://doi.org/10.1063/1.4793653.'
ieee: M. Bürger, M. Ruth, S. Declair, J. Förstner, C. Meier, and D. J. As, “Whispering
gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots,”
Applied Physics Letters, vol. 102, no. 8, p. 081105, 2013.
mla: Bürger, M., et al. “Whispering Gallery Modes in Zinc-Blende AlN Microdisks
Containing Non-Polar GaN Quantum Dots.” Applied Physics Letters, vol. 102,
no. 8, AIP Publishing, 2013, p. 081105, doi:10.1063/1.4793653.
short: M. Bürger, M. Ruth, S. Declair, J. Förstner, C. Meier, D.J. As, Applied Physics
Letters 102 (2013) 081105.
date_created: 2018-08-21T07:43:22Z
date_updated: 2022-01-06T07:00:01Z
ddc:
- '530'
department:
- _id: '15'
- _id: '287'
- _id: '284'
- _id: '230'
- _id: '35'
doi: 10.1063/1.4793653
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-21T07:47:02Z
date_updated: 2018-09-04T20:08:52Z
file_id: '3964'
file_name: 2013-02 Bürger,Ruth,Declair,Förstner,Meier,As_Whispering gallery modes
in zinc-blende AlN microdisks containing non-polar GaN quantum dots.pdf
file_size: 935911
relation: main_file
file_date_updated: 2018-09-04T20:08:52Z
has_accepted_license: '1'
intvolume: ' 102'
issue: '8'
keyword:
- tet_topic_qd
- tet_topic_microdisk
language:
- iso: eng
oa: '1'
page: '081105'
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
- 1077-3118
publication_status: published
publisher: AIP Publishing
status: public
title: Whispering gallery modes in zinc-blende AlN microdisks containing non-polar
GaN quantum dots
type: journal_article
urn: '39635'
user_id: '14'
volume: 102
year: '2013'
...
---
_id: '3974'
abstract:
- lang: eng
text: We study the quantum properties and statistics of photons emitted by a quantum-dot
biexciton inside a cavity. In the biexciton-exciton cascade, fine-structure splitting
between exciton levels degrades polarization-entanglement for the emitted pair
of photons. However, here we show that the polarization-entanglement can be preserved
in such a system through simultaneous emission of two degenerate photons into
cavity modes tuned to half the biexciton energy. Based on detailed theoretical
calculations for realistic quantum-dot and cavity parameters, we quantify the
degree of achievable entanglement.
article_type: original
author:
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Matthias
full_name: Florian, Matthias
last_name: Florian
- first_name: Christopher
full_name: Gies, Christopher
last_name: Gies
- first_name: Paul
full_name: Gartner, Paul
last_name: Gartner
- first_name: Frank
full_name: Jahnke, Frank
last_name: Jahnke
citation:
ama: Schumacher S, Förstner J, Zrenner A, et al. Cavity-assisted emission of polarization-entangled
photons from biexcitons in quantum dots with fine-structure splitting. Optics
Express. 2012;20(5):5335-5342. doi:10.1364/oe.20.005335
apa: Schumacher, S., Förstner, J., Zrenner, A., Florian, M., Gies, C., Gartner,
P., & Jahnke, F. (2012). Cavity-assisted emission of polarization-entangled
photons from biexcitons in quantum dots with fine-structure splitting. Optics
Express, 20(5), 5335–5342. https://doi.org/10.1364/oe.20.005335
bibtex: '@article{Schumacher_Förstner_Zrenner_Florian_Gies_Gartner_Jahnke_2012,
title={Cavity-assisted emission of polarization-entangled photons from biexcitons
in quantum dots with fine-structure splitting}, volume={20}, DOI={10.1364/oe.20.005335},
number={5}, journal={Optics Express}, publisher={OSA}, author={Schumacher, Stefan
and Förstner, Jens and Zrenner, Artur and Florian, Matthias and Gies, Christopher
and Gartner, Paul and Jahnke, Frank}, year={2012}, pages={5335–5342} }'
chicago: 'Schumacher, Stefan, Jens Förstner, Artur Zrenner, Matthias Florian, Christopher
Gies, Paul Gartner, and Frank Jahnke. “Cavity-Assisted Emission of Polarization-Entangled
Photons from Biexcitons in Quantum Dots with Fine-Structure Splitting.” Optics
Express 20, no. 5 (2012): 5335–42. https://doi.org/10.1364/oe.20.005335.'
ieee: 'S. Schumacher et al., “Cavity-assisted emission of polarization-entangled
photons from biexcitons in quantum dots with fine-structure splitting,” Optics
Express, vol. 20, no. 5, pp. 5335–5342, 2012, doi: 10.1364/oe.20.005335.'
mla: Schumacher, Stefan, et al. “Cavity-Assisted Emission of Polarization-Entangled
Photons from Biexcitons in Quantum Dots with Fine-Structure Splitting.” Optics
Express, vol. 20, no. 5, OSA, 2012, pp. 5335–42, doi:10.1364/oe.20.005335.
short: S. Schumacher, J. Förstner, A. Zrenner, M. Florian, C. Gies, P. Gartner,
F. Jahnke, Optics Express 20 (2012) 5335–5342.
date_created: 2018-08-21T09:03:31Z
date_updated: 2025-12-16T11:12:04Z
ddc:
- '530'
department:
- _id: '15'
- _id: '290'
- _id: '230'
- _id: '297'
- _id: '35'
- _id: '170'
- _id: '34'
- _id: '61'
- _id: '27'
doi: 10.1364/oe.20.005335
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-21T09:05:01Z
date_updated: 2018-09-04T19:10:02Z
file_id: '3975'
file_name: 2012 Schumacher,Förstner,Zrenner,Florian,Gies,Gartner,Jahnke_Cavity assisted
emission of polarization-entangled photons.pdf
file_size: 751384
relation: main_file
file_date_updated: 2018-09-04T19:10:02Z
has_accepted_license: '1'
intvolume: ' 20'
issue: '5'
keyword:
- tet_topic_qd
language:
- iso: eng
oa: '1'
page: 5335-5342
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: OSA
status: public
title: Cavity-assisted emission of polarization-entangled photons from biexcitons
in quantum dots with fine-structure splitting
type: journal_article
urn: '39744'
user_id: '16199'
volume: 20
year: '2012'
...
---
_id: '3972'
abstract:
- lang: eng
text: Using a finite-difference time-domain method, we theoretically investigate
the optical spectra of crossing perpendicular photonic crystal waveguides with
quantum dots embedded in the central rod. The waveguides are designed so that
the light mainly propagates along one direction and the cross talk is greatly
reduced in the transverse direction. It is shown that when a quantum dot (QD)
is resonant with the cavity, strong coupling can be observed via both the transmission
and crosstalk spectrum. If the cavity is far off-resonant from the QD, both the
cavity mode and the QD signal can be detected in the transverse direction since
the laser field is greatly suppressed in this direction. This structure could
have strong implications for resonant excitation and in-plane detection of QD
optical spectroscopy.
article_type: original
author:
- first_name: Xiaohong
full_name: Song, Xiaohong
last_name: Song
- first_name: Stefan
full_name: Declair, Stefan
last_name: Declair
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Song X, Declair S, Meier T, Zrenner A, Förstner J. Photonic crystal waveguides
intersection for resonant quantum dot optical spectroscopy detection. Optics
Express. 2012;20(13):14130-14136. doi:10.1364/oe.20.014130
apa: Song, X., Declair, S., Meier, T., Zrenner, A., & Förstner, J. (2012). Photonic
crystal waveguides intersection for resonant quantum dot optical spectroscopy
detection. Optics Express, 20(13), 14130–14136. https://doi.org/10.1364/oe.20.014130
bibtex: '@article{Song_Declair_Meier_Zrenner_Förstner_2012, title={Photonic crystal
waveguides intersection for resonant quantum dot optical spectroscopy detection},
volume={20}, DOI={10.1364/oe.20.014130},
number={13}, journal={Optics Express}, publisher={The Optical Society}, author={Song,
Xiaohong and Declair, Stefan and Meier, Torsten and Zrenner, Artur and Förstner,
Jens}, year={2012}, pages={14130–14136} }'
chicago: 'Song, Xiaohong, Stefan Declair, Torsten Meier, Artur Zrenner, and Jens
Förstner. “Photonic Crystal Waveguides Intersection for Resonant Quantum Dot Optical
Spectroscopy Detection.” Optics Express 20, no. 13 (2012): 14130–36. https://doi.org/10.1364/oe.20.014130.'
ieee: 'X. Song, S. Declair, T. Meier, A. Zrenner, and J. Förstner, “Photonic crystal
waveguides intersection for resonant quantum dot optical spectroscopy detection,”
Optics Express, vol. 20, no. 13, pp. 14130–14136, 2012, doi: 10.1364/oe.20.014130.'
mla: Song, Xiaohong, et al. “Photonic Crystal Waveguides Intersection for Resonant
Quantum Dot Optical Spectroscopy Detection.” Optics Express, vol. 20, no.
13, The Optical Society, 2012, pp. 14130–36, doi:10.1364/oe.20.014130.
short: X. Song, S. Declair, T. Meier, A. Zrenner, J. Förstner, Optics Express 20
(2012) 14130–14136.
date_created: 2018-08-21T08:40:38Z
date_updated: 2025-12-16T11:33:40Z
ddc:
- '530'
department:
- _id: '15'
- _id: '290'
- _id: '293'
- _id: '230'
- _id: '170'
- _id: '61'
- _id: '35'
- _id: '34'
doi: 10.1364/oe.20.014130
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-21T08:43:44Z
date_updated: 2018-08-21T08:43:44Z
file_id: '3973'
file_name: 2012 Song,Declair,Meier,Zrenner,Förstner_Photnic crystal waveguides intersection
for resonant quantum dot optical spectroscopy detection.pdf
file_size: 1437112
relation: main_file
success: 1
file_date_updated: 2018-08-21T08:43:44Z
has_accepted_license: '1'
intvolume: ' 20'
issue: '13'
keyword:
- tet_topic_phc
- tet_topic_qd
language:
- iso: eng
page: 14130-14136
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: The Optical Society
status: public
title: Photonic crystal waveguides intersection for resonant quantum dot optical spectroscopy
detection
type: journal_article
user_id: '16199'
volume: 20
year: '2012'
...
---
_id: '4171'
abstract:
- lang: eng
text: The method involves exciting a quantum system with photons in a polarization
state. Two states of the quantum system are excited with linear horizontal and
vertical polarizations that are orthogonal to each other, where the states exhibit
an energetic gap smaller than energetic bandwidth of photons. The states are assigned
based on the polarizations, where the quantum system is arranged in a superposition
state. The quantum system is formed by a quantum bit that is formed as a two-level
system.
- lang: eng
text: Die Erfindung betrifft ein Verfahren zur Übertragung des Polarisationszustandes
von Photonen in ein stationäres System, bei dem mit Photonen eines Polarisationszustandes
ein Quanten-System angeregt wird, das zwei Zustände aufweist, die mit zueinander
orthogonalen Polarisationen anregbar sind und deren energetischer Abstand kleiner
ist als die energetische Bandbreite der Photonen, wobei beide Zustände in Abhängigkeit
von der Polarisation besetzt werden und das Quantensystem einen Superpositionszustand
beider Zustände einnimmt.
application_date: 2010-05-18
application_number: '102010020817'
author:
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: D.
full_name: Mantei, D.
last_name: Mantei
- first_name: 'S. Michaelis '
full_name: 'de Vasconcellos, S. Michaelis '
last_name: de Vasconcellos
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Förstner J, Mantei D, de Vasconcellos SM, Zrenner A. Method for transmission
of information about polarization state of photons to stationary system. 2011.
apa: Förstner, J., Mantei, D., de Vasconcellos, S. M., & Zrenner, A. (2011).
Method for transmission of information about polarization state of photons to
stationary system.
bibtex: '@article{Förstner_Mantei_de Vasconcellos_Zrenner_2011, title={Method for
transmission of information about polarization state of photons to stationary
system}, author={Förstner, Jens and Mantei, D. and de Vasconcellos, S. Michaelis and
Zrenner, Artur}, year={2011} }'
chicago: Förstner, Jens, D. Mantei, S. Michaelis de Vasconcellos, and Artur Zrenner.
“Method for Transmission of Information about Polarization State of Photons to
Stationary System,” 2011.
ieee: J. Förstner, D. Mantei, S. M. de Vasconcellos, and A. Zrenner, “Method for
transmission of information about polarization state of photons to stationary
system.” 2011.
mla: Förstner, Jens, et al. Method for Transmission of Information about Polarization
State of Photons to Stationary System. 2011.
short: J. Förstner, D. Mantei, S.M. de Vasconcellos, A. Zrenner, (2011).
date_created: 2018-08-28T08:46:40Z
date_updated: 2022-01-06T07:00:28Z
department:
- _id: '15'
- _id: '290'
ipc: G01J 4/00
ipn: DE102010020817A1
keyword:
- tet_topic_qd
main_file_link:
- url: https://patents.google.com/patent/DE102010020817A1/en
publication_date: 2011-11-24
status: public
title: Method for transmission of information about polarization state of photons
to stationary system
type: patent
user_id: '158'
year: '2011'
...
---
_id: '4043'
abstract:
- lang: eng
text: "We present numerical results of the mutual coupling between photonic crystal
cavities and semiconductor quantum dots. Normal mode splitting between a single
cavity mode and a single quantum dot is shown under weak excitation, while under
strong excitation Q‐factor dependent side bands appear, according to the AC‐Stark
effect. Coupled photonic crystals, aligned parallel but displaced under a 30°‐angle
for efficient coupling, show line splittings of all eigenmodes, if a single eigenmode
is resonantly coupled to a single quantum dot. The mutual coupling of N resonant
quantum dots to a single cavity mode results in a N−−√\r\n scaling of the splitting,
known from quantum optics, but corrected by the field amplitude fraction for not
collocated quantum dots."
author:
- first_name: S.
full_name: Declair, S.
last_name: Declair
- first_name: X.
full_name: Song, X.
last_name: Song
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Declair S, Song X, Meier T, Förstner J. Simulation of Mutual Coupling of Photonic
Crystal Cavity Modes and Semiconductor Quantum Dots. In: THE FOURTH INTERNATIONAL
WORKSHOP 2011. Vol 1398. AIP Conference Proceedings. AIP; 2011:123-125. doi:10.1063/1.3644232'
apa: Declair, S., Song, X., Meier, T., & Förstner, J. (2011). Simulation of
Mutual Coupling of Photonic Crystal Cavity Modes and Semiconductor Quantum Dots.
THE FOURTH INTERNATIONAL WORKSHOP 2011, 1398(123), 123–125. https://doi.org/10.1063/1.3644232
bibtex: '@inproceedings{Declair_Song_Meier_Förstner_2011, series={AIP Conference
Proceedings}, title={Simulation of Mutual Coupling of Photonic Crystal Cavity
Modes and Semiconductor Quantum Dots}, volume={1398}, DOI={10.1063/1.3644232},
number={123}, booktitle={THE FOURTH INTERNATIONAL WORKSHOP 2011}, publisher={AIP},
author={Declair, S. and Song, X. and Meier, Torsten and Förstner, Jens}, year={2011},
pages={123–125}, collection={AIP Conference Proceedings} }'
chicago: Declair, S., X. Song, Torsten Meier, and Jens Förstner. “Simulation of
Mutual Coupling of Photonic Crystal Cavity Modes and Semiconductor Quantum Dots.”
In THE FOURTH INTERNATIONAL WORKSHOP 2011, 1398:123–25. AIP Conference
Proceedings. AIP, 2011. https://doi.org/10.1063/1.3644232.
ieee: 'S. Declair, X. Song, T. Meier, and J. Förstner, “Simulation of Mutual Coupling
of Photonic Crystal Cavity Modes and Semiconductor Quantum Dots,” in THE FOURTH
INTERNATIONAL WORKSHOP 2011, Bad Honnef, 2011, vol. 1398, no. 123, pp. 123–125,
doi: 10.1063/1.3644232.'
mla: Declair, S., et al. “Simulation of Mutual Coupling of Photonic Crystal Cavity
Modes and Semiconductor Quantum Dots.” THE FOURTH INTERNATIONAL WORKSHOP 2011,
vol. 1398, no. 123, AIP, 2011, pp. 123–25, doi:10.1063/1.3644232.
short: 'S. Declair, X. Song, T. Meier, J. Förstner, in: THE FOURTH INTERNATIONAL
WORKSHOP 2011, AIP, 2011, pp. 123–125.'
conference:
location: Bad Honnef
name: THE FOURTH INTERNATIONAL WORKSHOP 2011 (AIP Conference Proceedings)
date_created: 2018-08-22T10:10:39Z
date_updated: 2023-04-19T10:33:38Z
department:
- _id: '15'
- _id: '293'
doi: 10.1063/1.3644232
intvolume: ' 1398'
issue: '123'
keyword:
- tet_topic_phc
- tet_topic_qd
language:
- iso: eng
main_file_link:
- url: https://aip.scitation.org/doi/abs/10.1063/1.3644232
page: 123-125
publication: THE FOURTH INTERNATIONAL WORKSHOP 2011
publication_status: published
publisher: AIP
series_title: AIP Conference Proceedings
status: public
title: Simulation of Mutual Coupling of Photonic Crystal Cavity Modes and Semiconductor
Quantum Dots
type: conference
user_id: '49063'
volume: 1398
year: '2011'
...
---
_id: '4089'
abstract:
- lang: eng
text: We study the influence of the phonon environment on the electron dynamics
in a doped quantum dot molecule. A non-perturbative quantumkinetic theory based
on correlation expansion is used in order to describe both diagonal and off-diagonal
electron-phonon couplings representing real and virtual processes with relevant
acoustic phonons. We show that the relaxation is dominated by phononassisted electron
tunneling between constituent quantum dots and occurs on a picosecond time scale.
The dependence of the time evolution of the quantum dot occupation probabilities
on the energy mismatch between the quantum dots is studied in detail.
article_type: original
author:
- first_name: Anna
full_name: Grodecka-Grad, Anna
last_name: Grodecka-Grad
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Grodecka-Grad A, Förstner J. Phonon-assisted decoherence and tunneling in quantum
dot molecules. physica status solidi (c). 2011;8(4):1125-1128. doi:10.1002/pssc.201000824
apa: Grodecka-Grad, A., & Förstner, J. (2011). Phonon-assisted decoherence and
tunneling in quantum dot molecules. Physica Status Solidi (c), 8(4),
1125–1128. https://doi.org/10.1002/pssc.201000824
bibtex: '@article{Grodecka-Grad_Förstner_2011, title={Phonon-assisted decoherence
and tunneling in quantum dot molecules}, volume={8}, DOI={10.1002/pssc.201000824},
number={4}, journal={physica status solidi (c)}, publisher={Wiley}, author={Grodecka-Grad,
Anna and Förstner, Jens}, year={2011}, pages={1125–1128} }'
chicago: 'Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Assisted Decoherence and
Tunneling in Quantum Dot Molecules.” Physica Status Solidi (c) 8, no. 4
(2011): 1125–28. https://doi.org/10.1002/pssc.201000824.'
ieee: 'A. Grodecka-Grad and J. Förstner, “Phonon-assisted decoherence and tunneling
in quantum dot molecules,” physica status solidi (c), vol. 8, no. 4, pp.
1125–1128, 2011, doi: 10.1002/pssc.201000824.'
mla: Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Assisted Decoherence and Tunneling
in Quantum Dot Molecules.” Physica Status Solidi (c), vol. 8, no. 4, Wiley,
2011, pp. 1125–28, doi:10.1002/pssc.201000824.
short: A. Grodecka-Grad, J. Förstner, Physica Status Solidi (c) 8 (2011) 1125–1128.
date_created: 2018-08-23T09:43:57Z
date_updated: 2025-12-16T08:12:02Z
ddc:
- '530'
department:
- _id: '170'
- _id: '35'
- _id: '15'
- _id: '61'
- _id: '638'
- _id: '894'
- _id: '3'
- _id: '230'
doi: 10.1002/pssc.201000824
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-23T09:45:30Z
date_updated: 2018-08-23T09:45:30Z
file_id: '4090'
file_name: 2011 Grodecka-Grad,Förstner_ Phonon-assisted decoherence and tunneling
in quantum dot molecules.pdf
file_size: 202905
relation: main_file
success: 1
file_date_updated: 2018-08-23T09:45:30Z
has_accepted_license: '1'
intvolume: ' 8'
issue: '4'
keyword:
- tet_topic_qd
language:
- iso: eng
page: 1125-1128
publication: physica status solidi (c)
publication_identifier:
issn:
- 1862-6351
publication_status: published
publisher: Wiley
status: public
title: Phonon-assisted decoherence and tunneling in quantum dot molecules
type: journal_article
user_id: '16199'
volume: 8
year: '2011'
...
---
_id: '4129'
abstract:
- lang: eng
text: We study a single quantum dot molecule doped with one electron in the presence
of electron-phonon coupling. Both diagonal and off-diagonal interactions representing
real and virtual processes with acoustic phonons via deformation potential and
piezoelectric coupling are taken into account. We employ a non-perturbative quantum
kinetic theory and show that the phonon-mediated relaxation is dominated by an
electron tunneling on a picosecond time scale.A dependence of the relaxation on
the temperature and the strength of the tunneling coupling is analyzed.
article_number: '012035'
article_type: original
author:
- first_name: Anna
full_name: Grodecka-Grad, Anna
last_name: Grodecka-Grad
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Grodecka-Grad A, Förstner J. Phonon-mediated relaxation in doped quantum dot
molecules. Journal of Physics: Conference Series. 2010;245. doi:10.1088/1742-6596/245/1/012035'
apa: 'Grodecka-Grad, A., & Förstner, J. (2010). Phonon-mediated relaxation in
doped quantum dot molecules. Journal of Physics: Conference Series, 245.
https://doi.org/10.1088/1742-6596/245/1/012035'
bibtex: '@article{Grodecka-Grad_Förstner_2010, title={Phonon-mediated relaxation
in doped quantum dot molecules}, volume={245}, DOI={10.1088/1742-6596/245/1/012035},
number={012035}, journal={Journal of Physics: Conference Series}, publisher={IOP
Publishing}, author={Grodecka-Grad, Anna and Förstner, Jens}, year={2010} }'
chicago: 'Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Mediated Relaxation in
Doped Quantum Dot Molecules.” Journal of Physics: Conference Series 245
(2010). https://doi.org/10.1088/1742-6596/245/1/012035.'
ieee: 'A. Grodecka-Grad and J. Förstner, “Phonon-mediated relaxation in doped quantum
dot molecules,” Journal of Physics: Conference Series, vol. 245, 2010.'
mla: 'Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Mediated Relaxation in Doped
Quantum Dot Molecules.” Journal of Physics: Conference Series, vol. 245,
012035, IOP Publishing, 2010, doi:10.1088/1742-6596/245/1/012035.'
short: 'A. Grodecka-Grad, J. Förstner, Journal of Physics: Conference Series 245
(2010).'
date_created: 2018-08-27T10:33:04Z
date_updated: 2022-01-06T07:00:22Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1088/1742-6596/245/1/012035
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T10:34:26Z
date_updated: 2018-08-27T10:34:26Z
file_id: '4130'
file_name: 2010 Grodecka-Grad,Förstner_Phonon-mediated relaxation in doped quantum
dot molecules.pdf
file_size: 896613
relation: main_file
success: 1
file_date_updated: 2018-08-27T10:34:26Z
has_accepted_license: '1'
intvolume: ' 245'
keyword:
- tet_topic_qd
language:
- iso: eng
publication: 'Journal of Physics: Conference Series'
publication_identifier:
issn:
- 1742-6596
publication_status: published
publisher: IOP Publishing
status: public
title: Phonon-mediated relaxation in doped quantum dot molecules
type: journal_article
user_id: '55706'
volume: 245
year: '2010'
...
---
_id: '4174'
abstract:
- lang: eng
text: "A quantum dot molecule doped with a single electron in the presence of diagonal
and off-diagonal carrierphonon\r\ncouplings is studied by means of a nonperturbative
quantum kinetic theory. The interaction with acoustic phonons by deformation potential
and piezoelectric coupling is taken into account. We show that the phonon-mediated
relaxation is fast on a picosecond time scale and is dominated by the usually
neglected off-diagonal coupling to the lattice degrees of freedom leading to phonon-assisted
electron tunneling. We show that in the parameter regime of current electrical
and optical experiments, the microscopic non-Markovian theory has to be employed."
article_number: '115305'
article_type: original
author:
- first_name: A.
full_name: Grodecka-Grad, A.
last_name: Grodecka-Grad
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Grodecka-Grad A, Förstner J. Theory of phonon-mediated relaxation in doped
quantum dot molecules. Physical Review B. 2010;81(11). doi:10.1103/physrevb.81.115305
apa: Grodecka-Grad, A., & Förstner, J. (2010). Theory of phonon-mediated relaxation
in doped quantum dot molecules. Physical Review B, 81(11). https://doi.org/10.1103/physrevb.81.115305
bibtex: '@article{Grodecka-Grad_Förstner_2010, title={Theory of phonon-mediated
relaxation in doped quantum dot molecules}, volume={81}, DOI={10.1103/physrevb.81.115305},
number={11115305}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Grodecka-Grad, A. and Förstner, Jens}, year={2010} }'
chicago: Grodecka-Grad, A., and Jens Förstner. “Theory of Phonon-Mediated Relaxation
in Doped Quantum Dot Molecules.” Physical Review B 81, no. 11 (2010). https://doi.org/10.1103/physrevb.81.115305.
ieee: A. Grodecka-Grad and J. Förstner, “Theory of phonon-mediated relaxation in
doped quantum dot molecules,” Physical Review B, vol. 81, no. 11, 2010.
mla: Grodecka-Grad, A., and Jens Förstner. “Theory of Phonon-Mediated Relaxation
in Doped Quantum Dot Molecules.” Physical Review B, vol. 81, no. 11, 115305,
American Physical Society (APS), 2010, doi:10.1103/physrevb.81.115305.
short: A. Grodecka-Grad, J. Förstner, Physical Review B 81 (2010).
date_created: 2018-08-28T08:57:24Z
date_updated: 2022-01-06T07:00:29Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1103/physrevb.81.115305
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T08:58:21Z
date_updated: 2018-09-04T19:58:41Z
file_id: '4175'
file_name: 2010 Grodecka-Grad,Förstner_Theory of phonon-mediated relaxation in doped
quantum dot molecules.pdf
file_size: 680408
relation: main_file
file_date_updated: 2018-09-04T19:58:41Z
has_accepted_license: '1'
intvolume: ' 81'
issue: '11'
keyword:
- tet_topic_qd
language:
- iso: eng
oa: '1'
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Theory of phonon-mediated relaxation in doped quantum dot molecules
type: journal_article
urn: '41740'
user_id: '158'
volume: 81
year: '2010'
...
---
_id: '4123'
abstract:
- lang: eng
text: GaAs-based semiconductor microdisks with high quality whispering gallery modes
(Q44000) have been fabricated.A layer of self-organized InAs quantumdots (QDs)
served as a light source to feed the optical modes at room temperature. In order
to achieve frequency tuning of the optical modes, the microdisk devices have been
immersed in 4 – cyano – 4´-pentylbiphenyl (5CB), a liquid crystal(LC) with a nematic
phase below the clearing temperature of TC≈34°C .We have studied the device performance
in the temperature rangeof T=20-50°C, in order to investigate the influence of
the nematic–isotropic phase transition on the optical modes. Moreover,we havea
pplied an AC electric field to the device,which leads in the nematic phase to
a reorientation of the anisotropic dielectric tensor of the liquid crystal.This
electrical anisotropy can be used to achieve electrical tunability of the optical
modes.Using the finite-difference time domain (FDTD) technique with an anisotropic
material model, we are able to describe the influence of the liquid crystal qualitatively.
article_type: original
author:
- first_name: Karoline A.
full_name: Piegdon, Karoline A.
last_name: Piegdon
- first_name: Matthias
full_name: Offer, Matthias
last_name: Offer
- first_name: Axel
full_name: Lorke, Axel
last_name: Lorke
- first_name: Martin
full_name: Urbanski, Martin
last_name: Urbanski
- first_name: Andreas
full_name: Hoischen, Andreas
last_name: Hoischen
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
- first_name: Stefan
full_name: Declair, Stefan
last_name: Declair
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Andreas D.
full_name: Wieck, Andreas D.
last_name: Wieck
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: 'Piegdon KA, Offer M, Lorke A, et al. Self-assembled quantum dots in a liquid-crystal-tunable
microdisk resonator. Physica E: Low-dimensional Systems and Nanostructures.
2010;42(10):2552-2555. doi:10.1016/j.physe.2009.12.051'
apa: 'Piegdon, K. A., Offer, M., Lorke, A., Urbanski, M., Hoischen, A., Kitzerow,
H.-S., Declair, S., Förstner, J., Meier, T., Reuter, D., Wieck, A. D., & Meier,
C. (2010). Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator.
Physica E: Low-Dimensional Systems and Nanostructures, 42(10), 2552–2555.
https://doi.org/10.1016/j.physe.2009.12.051'
bibtex: '@article{Piegdon_Offer_Lorke_Urbanski_Hoischen_Kitzerow_Declair_Förstner_Meier_Reuter_et
al._2010, title={Self-assembled quantum dots in a liquid-crystal-tunable microdisk
resonator}, volume={42}, DOI={10.1016/j.physe.2009.12.051},
number={10}, journal={Physica E: Low-dimensional Systems and Nanostructures},
publisher={Elsevier BV}, author={Piegdon, Karoline A. and Offer, Matthias and
Lorke, Axel and Urbanski, Martin and Hoischen, Andreas and Kitzerow, Heinz-Siegfried
and Declair, Stefan and Förstner, Jens and Meier, Torsten and Reuter, Dirk and
et al.}, year={2010}, pages={2552–2555} }'
chicago: 'Piegdon, Karoline A., Matthias Offer, Axel Lorke, Martin Urbanski, Andreas
Hoischen, Heinz-Siegfried Kitzerow, Stefan Declair, et al. “Self-Assembled Quantum
Dots in a Liquid-Crystal-Tunable Microdisk Resonator.” Physica E: Low-Dimensional
Systems and Nanostructures 42, no. 10 (2010): 2552–55. https://doi.org/10.1016/j.physe.2009.12.051.'
ieee: 'K. A. Piegdon et al., “Self-assembled quantum dots in a liquid-crystal-tunable
microdisk resonator,” Physica E: Low-dimensional Systems and Nanostructures,
vol. 42, no. 10, pp. 2552–2555, 2010, doi: 10.1016/j.physe.2009.12.051.'
mla: 'Piegdon, Karoline A., et al. “Self-Assembled Quantum Dots in a Liquid-Crystal-Tunable
Microdisk Resonator.” Physica E: Low-Dimensional Systems and Nanostructures,
vol. 42, no. 10, Elsevier BV, 2010, pp. 2552–55, doi:10.1016/j.physe.2009.12.051.'
short: 'K.A. Piegdon, M. Offer, A. Lorke, M. Urbanski, A. Hoischen, H.-S. Kitzerow,
S. Declair, J. Förstner, T. Meier, D. Reuter, A.D. Wieck, C. Meier, Physica E:
Low-Dimensional Systems and Nanostructures 42 (2010) 2552–2555.'
date_created: 2018-08-27T10:03:35Z
date_updated: 2025-12-16T11:32:03Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '2'
- _id: '293'
- _id: '292'
- _id: '35'
- _id: '287'
- _id: '313'
- _id: '170'
doi: 10.1016/j.physe.2009.12.051
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T10:06:57Z
date_updated: 2018-08-27T10:06:57Z
file_id: '4124'
file_name: 2010 Piegdon,Offer,Lork,Urbanski,Hoischen,Kitzerwo, Declair,Förstner_Self-assembled
quantum dots in a liquid-crystal-tunable microdisk resonator.pdf
file_size: 403248
relation: main_file
success: 1
file_date_updated: 2018-08-27T10:06:57Z
has_accepted_license: '1'
intvolume: ' 42'
issue: '10'
keyword:
- tet_topic_qd
- tet_topic_microdisk
language:
- iso: eng
page: 2552-2555
publication: 'Physica E: Low-dimensional Systems and Nanostructures'
publication_identifier:
issn:
- 1386-9477
publication_status: published
publisher: Elsevier BV
status: public
title: Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator
type: journal_article
user_id: '16199'
volume: 42
year: '2010'
...
---
_id: '4172'
abstract:
- lang: eng
text: "Microdisks made from GaAs with embedded InAs quantum dots are immersed in
the liquid crystal 4-cyano-4’-pentylbiphenyl (5CB). The quantum dots serve as
emitters feeding the optical modes of the photonic cavity. By changing temperature,
the liquid crystal undergoes a phase transition from the isotropic to the nematic
state, which can be used\r\nas an effective tuning mechanism of the photonic modes
of the cavity. In the nematic state, the uniaxial electrical anisotropy of the
liquid crystal molecules can be exploited for orienting the material in an electric
field,\r\nthus externally controlling the birefringence of the material. Using
this effect, an electric field induced tuning of the modes is achieved. Numerical
simulations using the finite-differences time-domain (FDTD) technique\r\nemploying
an anisotropic dielectric medium allow to understand the alignment of the liquid
crystal molecules on the surface of the microdisk resonator."
article_number: '7946'
article_type: original
author:
- first_name: Karoline A.
full_name: Piegdon, Karoline A.
last_name: Piegdon
- first_name: Stefan
full_name: Declair, Stefan
last_name: Declair
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Heiner
full_name: Matthias, Heiner
last_name: Matthias
- first_name: Martin
full_name: Urbanski, Martin
last_name: Urbanski
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Andreas D.
full_name: Wieck, Andreas D.
last_name: Wieck
- first_name: Axel
full_name: Lorke, Axel
last_name: Lorke
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: Piegdon KA, Declair S, Förstner J, et al. Tuning quantum-dot based photonic
devices with liquid crystals. Optics Express. 2010;18(8). doi:10.1364/oe.18.007946
apa: Piegdon, K. A., Declair, S., Förstner, J., Meier, T., Matthias, H., Urbanski,
M., Kitzerow, H.-S., Reuter, D., Wieck, A. D., Lorke, A., & Meier, C. (2010).
Tuning quantum-dot based photonic devices with liquid crystals. Optics Express,
18(8), Article 7946. https://doi.org/10.1364/oe.18.007946
bibtex: '@article{Piegdon_Declair_Förstner_Meier_Matthias_Urbanski_Kitzerow_Reuter_Wieck_Lorke_et
al._2010, title={Tuning quantum-dot based photonic devices with liquid crystals},
volume={18}, DOI={10.1364/oe.18.007946},
number={87946}, journal={Optics Express}, publisher={The Optical Society}, author={Piegdon,
Karoline A. and Declair, Stefan and Förstner, Jens and Meier, Torsten and Matthias,
Heiner and Urbanski, Martin and Kitzerow, Heinz-Siegfried and Reuter, Dirk and
Wieck, Andreas D. and Lorke, Axel and et al.}, year={2010} }'
chicago: Piegdon, Karoline A., Stefan Declair, Jens Förstner, Torsten Meier, Heiner
Matthias, Martin Urbanski, Heinz-Siegfried Kitzerow, et al. “Tuning Quantum-Dot
Based Photonic Devices with Liquid Crystals.” Optics Express 18, no. 8
(2010). https://doi.org/10.1364/oe.18.007946.
ieee: 'K. A. Piegdon et al., “Tuning quantum-dot based photonic devices with
liquid crystals,” Optics Express, vol. 18, no. 8, Art. no. 7946, 2010,
doi: 10.1364/oe.18.007946.'
mla: Piegdon, Karoline A., et al. “Tuning Quantum-Dot Based Photonic Devices with
Liquid Crystals.” Optics Express, vol. 18, no. 8, 7946, The Optical Society,
2010, doi:10.1364/oe.18.007946.
short: K.A. Piegdon, S. Declair, J. Förstner, T. Meier, H. Matthias, M. Urbanski,
H.-S. Kitzerow, D. Reuter, A.D. Wieck, A. Lorke, C. Meier, Optics Express 18 (2010).
date_created: 2018-08-28T08:50:06Z
date_updated: 2025-12-16T16:44:44Z
ddc:
- '530'
department:
- _id: '15'
- _id: '287'
- _id: '293'
- _id: '292'
- _id: '35'
- _id: '230'
- _id: '313'
- _id: '170'
- _id: '27'
- _id: '34'
- _id: '61'
doi: 10.1364/oe.18.007946
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T08:52:50Z
date_updated: 2018-09-04T20:02:01Z
file_id: '4173'
file_name: 2010 Piegdon,Declair,Förstner,Meier T,Matthias,Urbanski,Kitzerow,Reuter,Wieck,Lorcke,Meier
C_Tuning quantum-dot based photonic devices with liquid crystals.pdf
file_size: 627755
relation: main_file
file_date_updated: 2018-09-04T20:02:01Z
has_accepted_license: '1'
intvolume: ' 18'
issue: '8'
keyword:
- tet_topic_qd
- tet_topic_microdisk
language:
- iso: eng
oa: '1'
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: The Optical Society
status: public
title: Tuning quantum-dot based photonic devices with liquid crystals
type: journal_article
urn: '41725'
user_id: '16199'
volume: 18
year: '2010'
...