---
_id: '63988'
abstract:
- lang: eng
  text: This concept summarizes recent advances in development and application of
    DNP enhanced multinuclear solid-state NMR to study the molecular structure and
    surface functionalization of cellulose and paper-based materials. Moreover, a
    novel application is presented where DNP enhanced 13C and 15N solid-state NMR
    is used to identify structure moieties formed by cross-linking of hydroxypropyl
    cellulose. Given these two aspects of this concept-type of article, we thus combine
    both, a review on recent findings already published and unpublished recent data
    that complement the existing knowledge in the field of characterization of functional
    lignocellulosic materials by DNP enhanced solid-state NMR.
author:
- first_name: Mark V.
  full_name: Höfler, Mark V.
  last_name: Höfler
- first_name: Jonas
  full_name: Lins, Jonas
  last_name: Lins
- first_name: David
  full_name: Seelinger, David
  last_name: Seelinger
- first_name: Lukas
  full_name: Pachernegg, Lukas
  last_name: Pachernegg
- first_name: Timmy
  full_name: Schäfer, Timmy
  last_name: Schäfer
- first_name: Stefan
  full_name: Spirk, Stefan
  last_name: Spirk
- first_name: Markus
  full_name: Biesalski, Markus
  last_name: Biesalski
- first_name: Torsten
  full_name: Gutmann, Torsten
  id: '118165'
  last_name: Gutmann
citation:
  ama: Höfler MV, Lins J, Seelinger D, et al. DNP enhanced solid-state NMR – A powerful
    tool to address the surface functionalization of cellulose/paper derived materials.
    <i>Journal of Magnetic Resonance Open</i>. 2024;21:100163. doi:<a href="https://doi.org/10.1016/j.jmro.2024.100163">10.1016/j.jmro.2024.100163</a>
  apa: Höfler, M. V., Lins, J., Seelinger, D., Pachernegg, L., Schäfer, T., Spirk,
    S., Biesalski, M., &#38; Gutmann, T. (2024). DNP enhanced solid-state NMR – A
    powerful tool to address the surface functionalization of cellulose/paper derived
    materials. <i>Journal of Magnetic Resonance Open</i>, <i>21</i>, 100163. <a href="https://doi.org/10.1016/j.jmro.2024.100163">https://doi.org/10.1016/j.jmro.2024.100163</a>
  bibtex: '@article{Höfler_Lins_Seelinger_Pachernegg_Schäfer_Spirk_Biesalski_Gutmann_2024,
    title={DNP enhanced solid-state NMR – A powerful tool to address the surface functionalization
    of cellulose/paper derived materials}, volume={21}, DOI={<a href="https://doi.org/10.1016/j.jmro.2024.100163">10.1016/j.jmro.2024.100163</a>},
    journal={Journal of Magnetic Resonance Open}, author={Höfler, Mark V. and Lins,
    Jonas and Seelinger, David and Pachernegg, Lukas and Schäfer, Timmy and Spirk,
    Stefan and Biesalski, Markus and Gutmann, Torsten}, year={2024}, pages={100163}
    }'
  chicago: 'Höfler, Mark V., Jonas Lins, David Seelinger, Lukas Pachernegg, Timmy
    Schäfer, Stefan Spirk, Markus Biesalski, and Torsten Gutmann. “DNP Enhanced Solid-State
    NMR – A Powerful Tool to Address the Surface Functionalization of Cellulose/Paper
    Derived Materials.” <i>Journal of Magnetic Resonance Open</i> 21 (2024): 100163.
    <a href="https://doi.org/10.1016/j.jmro.2024.100163">https://doi.org/10.1016/j.jmro.2024.100163</a>.'
  ieee: 'M. V. Höfler <i>et al.</i>, “DNP enhanced solid-state NMR – A powerful tool
    to address the surface functionalization of cellulose/paper derived materials,”
    <i>Journal of Magnetic Resonance Open</i>, vol. 21, p. 100163, 2024, doi: <a href="https://doi.org/10.1016/j.jmro.2024.100163">10.1016/j.jmro.2024.100163</a>.'
  mla: Höfler, Mark V., et al. “DNP Enhanced Solid-State NMR – A Powerful Tool to
    Address the Surface Functionalization of Cellulose/Paper Derived Materials.” <i>Journal
    of Magnetic Resonance Open</i>, vol. 21, 2024, p. 100163, doi:<a href="https://doi.org/10.1016/j.jmro.2024.100163">10.1016/j.jmro.2024.100163</a>.
  short: M.V. Höfler, J. Lins, D. Seelinger, L. Pachernegg, T. Schäfer, S. Spirk,
    M. Biesalski, T. Gutmann, Journal of Magnetic Resonance Open 21 (2024) 100163.
date_created: 2026-02-07T15:46:32Z
date_updated: 2026-02-17T16:16:40Z
doi: 10.1016/j.jmro.2024.100163
extern: '1'
intvolume: '        21'
keyword:
- solid-state nmr
- dynamic nuclear polarization
- Hydroxypropyl cellulose
- Selective enhancement
- Spin labelling
language:
- iso: eng
page: '100163'
publication: Journal of Magnetic Resonance Open
status: public
title: DNP enhanced solid-state NMR – A powerful tool to address the surface functionalization
  of cellulose/paper derived materials
type: journal_article
user_id: '100715'
volume: 21
year: '2024'
...
---
_id: '63974'
abstract:
- lang: eng
  text: A versatile strategy for synthesizing tailored peptide based biradicals is
    presented. By labeling the protected amino acid hydroxyproline with PROXYL via
    the OH functionality and using this building block in solid phase peptide synthesis
    (SPPS), the obtained peptides become polarization agents for DNP enhanced solid-state
    NMR in biotolerant media. To analyze the effect of the radical position on the
    enhancement factor, three different biradicals are synthesized. The PROXYL spin-label
    is inserted in a collagen inspired artificial peptide sequence by binding through
    the OH group of the hydroxyproline moieties at specific position in the chain.
    This labeling strategy is universally applicable for any hydroxyproline position
    in a peptide sequence since solid-phase peptide synthesis is used to insert the
    building block. High performance liquid chromatography (HPLC) and mass spectrometry
    (MS) analyses show the successful introduction of the spin label in the peptide
    chain and electron paramagnetic resonance (EPR) spectroscopy confirms its activity.
    Dynamic nuclear polarization (DNP) enhanced solid-state nuclear magnetic resonance
    (NMR) experiments performed on frozen aqueous glycerol-d8 solutions containing
    these peptide radicals show significantly higher enhancement factors of up to
    45 in 1H→13C cross polarization magic angle spinning (CP MAS) experiments compared
    to an analogous mono-radical peptide including this building block (ε ≈ 14). Compared
    to commercial biradicals such as AMUPol for which enhancement factors {\textgreater}
    100 have been obtained in the past and which have been optimized in their structure,
    the obtained enhancement up to 45 for our biradicals presents a significant progress
    in radical design.
author:
- first_name: Kevin
  full_name: Herr, Kevin
  last_name: Herr
- first_name: Mark V.
  full_name: Höfler, Mark V.
  last_name: Höfler
- first_name: Henrike
  full_name: Heise, Henrike
  last_name: Heise
- first_name: Fabien
  full_name: Aussenac, Fabien
  last_name: Aussenac
- first_name: Felix
  full_name: Kornemann, Felix
  last_name: Kornemann
- first_name: David
  full_name: Rosenberger, David
  last_name: Rosenberger
- first_name: Martin
  full_name: Brodrecht, Martin
  last_name: Brodrecht
- first_name: Marcos
  full_name: Oliveira, Marcos
  last_name: Oliveira
- first_name: Gerd
  full_name: Buntkowsky, Gerd
  last_name: Buntkowsky
- first_name: Torsten
  full_name: Gutmann, Torsten
  id: '118165'
  last_name: Gutmann
citation:
  ama: Herr K, Höfler MV, Heise H, et al. Biradicals based on PROXYL containing building
    blocks for efficient dynamic nuclear polarization in biotolerant media. <i>Journal
    of Magnetic Resonance Open</i>. 2024;20:100152. doi:<a href="https://doi.org/10.1016/j.jmro.2024.100152">10.1016/j.jmro.2024.100152</a>
  apa: Herr, K., Höfler, M. V., Heise, H., Aussenac, F., Kornemann, F., Rosenberger,
    D., Brodrecht, M., Oliveira, M., Buntkowsky, G., &#38; Gutmann, T. (2024). Biradicals
    based on PROXYL containing building blocks for efficient dynamic nuclear polarization
    in biotolerant media. <i>Journal of Magnetic Resonance Open</i>, <i>20</i>, 100152.
    <a href="https://doi.org/10.1016/j.jmro.2024.100152">https://doi.org/10.1016/j.jmro.2024.100152</a>
  bibtex: '@article{Herr_Höfler_Heise_Aussenac_Kornemann_Rosenberger_Brodrecht_Oliveira_Buntkowsky_Gutmann_2024,
    title={Biradicals based on PROXYL containing building blocks for efficient dynamic
    nuclear polarization in biotolerant media}, volume={20}, DOI={<a href="https://doi.org/10.1016/j.jmro.2024.100152">10.1016/j.jmro.2024.100152</a>},
    journal={Journal of Magnetic Resonance Open}, author={Herr, Kevin and Höfler,
    Mark V. and Heise, Henrike and Aussenac, Fabien and Kornemann, Felix and Rosenberger,
    David and Brodrecht, Martin and Oliveira, Marcos and Buntkowsky, Gerd and Gutmann,
    Torsten}, year={2024}, pages={100152} }'
  chicago: 'Herr, Kevin, Mark V. Höfler, Henrike Heise, Fabien Aussenac, Felix Kornemann,
    David Rosenberger, Martin Brodrecht, Marcos Oliveira, Gerd Buntkowsky, and Torsten
    Gutmann. “Biradicals Based on PROXYL Containing Building Blocks for Efficient
    Dynamic Nuclear Polarization in Biotolerant Media.” <i>Journal of Magnetic Resonance
    Open</i> 20 (2024): 100152. <a href="https://doi.org/10.1016/j.jmro.2024.100152">https://doi.org/10.1016/j.jmro.2024.100152</a>.'
  ieee: 'K. Herr <i>et al.</i>, “Biradicals based on PROXYL containing building blocks
    for efficient dynamic nuclear polarization in biotolerant media,” <i>Journal of
    Magnetic Resonance Open</i>, vol. 20, p. 100152, 2024, doi: <a href="https://doi.org/10.1016/j.jmro.2024.100152">10.1016/j.jmro.2024.100152</a>.'
  mla: Herr, Kevin, et al. “Biradicals Based on PROXYL Containing Building Blocks
    for Efficient Dynamic Nuclear Polarization in Biotolerant Media.” <i>Journal of
    Magnetic Resonance Open</i>, vol. 20, 2024, p. 100152, doi:<a href="https://doi.org/10.1016/j.jmro.2024.100152">10.1016/j.jmro.2024.100152</a>.
  short: K. Herr, M.V. Höfler, H. Heise, F. Aussenac, F. Kornemann, D. Rosenberger,
    M. Brodrecht, M. Oliveira, G. Buntkowsky, T. Gutmann, Journal of Magnetic Resonance
    Open 20 (2024) 100152.
date_created: 2026-02-07T15:42:00Z
date_updated: 2026-02-17T16:17:22Z
doi: 10.1016/j.jmro.2024.100152
extern: '1'
intvolume: '        20'
keyword:
- solid-state nmr
- dynamic nuclear polarization
- peptides
- Biradicals
- Spin labeling
language:
- iso: eng
page: '100152'
publication: Journal of Magnetic Resonance Open
status: public
title: Biradicals based on PROXYL containing building blocks for efficient dynamic
  nuclear polarization in biotolerant media
type: journal_article
user_id: '100715'
volume: 20
year: '2024'
...
---
_id: '59663'
abstract:
- lang: eng
  text: Controlling the intensity of emitted light and charge current is the basis
    of transferring and processing information1. By contrast, robust information storage
    and magnetic random-access memories are implemented using the spin of the carrier
    and the associated magnetization in ferromagnets2. The missing link between the
    respective disciplines of photonics, electronics and spintronics is to modulate
    the circular polarization of the emitted light, rather than its intensity, by
    electrically controlled magnetization. Here we demonstrate that this missing link
    is established at room temperature and zero applied magnetic field in light-emitting
    diodes2,3,4,5,6,7, through the transfer of angular momentum between photons, electrons
    and ferromagnets. With spin–orbit torque8,9,10,11, a charge current generates
    also a spin current to electrically switch the magnetization. This switching determines
    the spin orientation of injected carriers into semiconductors, in which the transfer
    of angular momentum from the electron spin to photon controls the circular polarization
    of the emitted light2. The spin–photon conversion with the nonvolatile control
    of magnetization opens paths to seamlessly integrate information transfer, processing
    and storage. Our results provide substantial advances towards electrically controlled
    ultrafast modulation of circular polarization and spin injection with magnetization
    dynamics for the next-generation information and communication technology12, including
    space–light data transfer. The same operating principle in scaled-down structures
    or using two-dimensional materials will enable transformative opportunities for
    quantum information processing with spin-controlled single-photon sources, as
    well as for implementing spin-dependent time-resolved spectroscopies.
article_type: original
author:
- first_name: Pambiang Abel
  full_name: Dainone, Pambiang Abel
  last_name: Dainone
- first_name: Nicholas Figueiredo
  full_name: Prestes, Nicholas Figueiredo
  last_name: Prestes
- first_name: Pierre
  full_name: Renucci, Pierre
  last_name: Renucci
- first_name: Alexandre
  full_name: Bouché, Alexandre
  last_name: Bouché
- first_name: Martina
  full_name: Morassi, Martina
  last_name: Morassi
- first_name: Xavier
  full_name: Devaux, Xavier
  last_name: Devaux
- first_name: Markus
  full_name: Lindemann, Markus
  last_name: Lindemann
- first_name: Jean-Marie
  full_name: George, Jean-Marie
  last_name: George
- first_name: Henri
  full_name: Jaffrès, Henri
  last_name: Jaffrès
- first_name: Aristide
  full_name: Lemaitre, Aristide
  last_name: Lemaitre
- first_name: Bo
  full_name: Xu, Bo
  last_name: Xu
- first_name: Mathieu
  full_name: Stoffel, Mathieu
  last_name: Stoffel
- first_name: Tongxin
  full_name: Chen, Tongxin
  last_name: Chen
- first_name: Laurent
  full_name: Lombez, Laurent
  last_name: Lombez
- first_name: Delphine
  full_name: Lagarde, Delphine
  last_name: Lagarde
- first_name: Guangwei
  full_name: Cong, Guangwei
  last_name: Cong
- first_name: Tianyi
  full_name: Ma, Tianyi
  last_name: Ma
- first_name: Philippe
  full_name: Pigeat, Philippe
  last_name: Pigeat
- first_name: Michel
  full_name: Vergnat, Michel
  last_name: Vergnat
- first_name: Hervé
  full_name: Rinnert, Hervé
  last_name: Rinnert
- first_name: Xavier
  full_name: Marie, Xavier
  last_name: Marie
- first_name: Xiufeng
  full_name: Han, Xiufeng
  last_name: Han
- first_name: Stephane
  full_name: Mangin, Stephane
  last_name: Mangin
- first_name: Juan-Carlos
  full_name: Rojas-Sánchez, Juan-Carlos
  last_name: Rojas-Sánchez
- first_name: Jian-Ping
  full_name: Wang, Jian-Ping
  last_name: Wang
- first_name: Matthew C.
  full_name: Beard, Matthew C.
  last_name: Beard
- first_name: Nils Christopher
  full_name: Gerhardt, Nils Christopher
  id: '115298'
  last_name: Gerhardt
  orcid: 0009-0002-5538-231X
- first_name: Igor
  full_name: Žutić, Igor
  last_name: Žutić
- first_name: Yuan
  full_name: Lu, Yuan
  last_name: Lu
citation:
  ama: Dainone PA, Prestes NF, Renucci P, et al. Controlling the helicity of light
    by electrical magnetization switching. <i>Nature</i>. 2024;627(8005):783-788.
    doi:<a href="https://doi.org/10.1038/s41586-024-07125-5">10.1038/s41586-024-07125-5</a>
  apa: Dainone, P. A., Prestes, N. F., Renucci, P., Bouché, A., Morassi, M., Devaux,
    X., Lindemann, M., George, J.-M., Jaffrès, H., Lemaitre, A., Xu, B., Stoffel,
    M., Chen, T., Lombez, L., Lagarde, D., Cong, G., Ma, T., Pigeat, P., Vergnat,
    M., … Lu, Y. (2024). Controlling the helicity of light by electrical magnetization
    switching. <i>Nature</i>, <i>627</i>(8005), 783–788. <a href="https://doi.org/10.1038/s41586-024-07125-5">https://doi.org/10.1038/s41586-024-07125-5</a>
  bibtex: '@article{Dainone_Prestes_Renucci_Bouché_Morassi_Devaux_Lindemann_George_Jaffrès_Lemaitre_et
    al._2024, title={Controlling the helicity of light by electrical magnetization
    switching}, volume={627}, DOI={<a href="https://doi.org/10.1038/s41586-024-07125-5">10.1038/s41586-024-07125-5</a>},
    number={8005}, journal={Nature}, publisher={Springer Science and Business Media
    LLC}, author={Dainone, Pambiang Abel and Prestes, Nicholas Figueiredo and Renucci,
    Pierre and Bouché, Alexandre and Morassi, Martina and Devaux, Xavier and Lindemann,
    Markus and George, Jean-Marie and Jaffrès, Henri and Lemaitre, Aristide and et
    al.}, year={2024}, pages={783–788} }'
  chicago: 'Dainone, Pambiang Abel, Nicholas Figueiredo Prestes, Pierre Renucci, Alexandre
    Bouché, Martina Morassi, Xavier Devaux, Markus Lindemann, et al. “Controlling
    the Helicity of Light by Electrical Magnetization Switching.” <i>Nature</i> 627,
    no. 8005 (2024): 783–88. <a href="https://doi.org/10.1038/s41586-024-07125-5">https://doi.org/10.1038/s41586-024-07125-5</a>.'
  ieee: 'P. A. Dainone <i>et al.</i>, “Controlling the helicity of light by electrical
    magnetization switching,” <i>Nature</i>, vol. 627, no. 8005, pp. 783–788, 2024,
    doi: <a href="https://doi.org/10.1038/s41586-024-07125-5">10.1038/s41586-024-07125-5</a>.'
  mla: Dainone, Pambiang Abel, et al. “Controlling the Helicity of Light by Electrical
    Magnetization Switching.” <i>Nature</i>, vol. 627, no. 8005, Springer Science
    and Business Media LLC, 2024, pp. 783–88, doi:<a href="https://doi.org/10.1038/s41586-024-07125-5">10.1038/s41586-024-07125-5</a>.
  short: P.A. Dainone, N.F. Prestes, P. Renucci, A. Bouché, M. Morassi, X. Devaux,
    M. Lindemann, J.-M. George, H. Jaffrès, A. Lemaitre, B. Xu, M. Stoffel, T. Chen,
    L. Lombez, D. Lagarde, G. Cong, T. Ma, P. Pigeat, M. Vergnat, H. Rinnert, X. Marie,
    X. Han, S. Mangin, J.-C. Rojas-Sánchez, J.-P. Wang, M.C. Beard, N.C. Gerhardt,
    I. Žutić, Y. Lu, Nature 627 (2024) 783–788.
date_created: 2025-04-23T13:27:27Z
date_updated: 2026-02-25T14:10:20Z
department:
- _id: '977'
doi: 10.1038/s41586-024-07125-5
extern: '1'
intvolume: '       627'
issue: '8005'
keyword:
- Lasers
- LEDs and light sources
- Spintronics
language:
- iso: eng
page: 783-788
publication: Nature
publication_identifier:
  issn:
  - 0028-0836
  - 1476-4687
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Controlling the helicity of light by electrical magnetization switching
type: journal_article
user_id: '15911'
volume: 627
year: '2024'
...
---
_id: '59666'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>Spin‐controlled lasers are highly
    interesting photonic devices and have been shown to provide ultrafast polarization
    dynamics in excess of 200 GHz. In contrast to conventional semiconductor lasers
    their temporal properties are not limited by the intensity dynamics, but are governed
    primarily by the interaction of the spin dynamics with the birefringent mode splitting
    that determines the polarization oscillation frequency. Another class of modern
    semiconductor lasers are high‐<jats:italic>β</jats:italic> emitters, which benefit
    from enhanced light–matter interaction due to strong mode confinement in low‐mode‐volume
    microcavities. In such structures, the emission properties can be tailored by
    the resonator geometry to realize for instance bimodal emission behavior in slightly
    elliptical micropillar cavities. This attractive feature is utilized to demonstrate
    and explore spin‐lasing effects in bimodal high‐<jats:italic>β</jats:italic> quantum
    dot micropillar lasers. The studied microlasers with a <jats:italic>β</jats:italic>‐factor
    of 4% show spin‐laser effects with experimental polarization oscillation frequencies
    up to 15 GHz and predicted frequencies up to about 100 GHz, which are controlled
    by the ellipticity of the resonator. These results reveal appealing prospects
    for very compact, ultrafast, and energy‐efficient spin‐lasers and can pave the
    way for future purely electrically injected spin‐lasers enabled by short injection
    path lengths.</jats:p>
article_type: original
author:
- first_name: Niels
  full_name: Heermeier, Niels
  last_name: Heermeier
- first_name: Tobias
  full_name: Heuser, Tobias
  last_name: Heuser
- first_name: Jan
  full_name: Große, Jan
  last_name: Große
- first_name: Natalie
  full_name: Jung, Natalie
  last_name: Jung
- first_name: Arsenty
  full_name: Kaganskiy, Arsenty
  last_name: Kaganskiy
- first_name: Markus
  full_name: Lindemann, Markus
  last_name: Lindemann
- first_name: Nils C.
  full_name: Gerhardt, Nils C.
  last_name: Gerhardt
- first_name: Martin R.
  full_name: Hofmann, Martin R.
  last_name: Hofmann
- first_name: Stephan
  full_name: Reitzenstein, Stephan
  last_name: Reitzenstein
citation:
  ama: Heermeier N, Heuser T, Große J, et al. Spin‐Lasing in Bimodal Quantum Dot Micropillar
    Cavities. <i>Laser &#38;amp; Photonics Reviews</i>. 2022;16(4). doi:<a href="https://doi.org/10.1002/lpor.202100585">10.1002/lpor.202100585</a>
  apa: Heermeier, N., Heuser, T., Große, J., Jung, N., Kaganskiy, A., Lindemann, M.,
    Gerhardt, N. C., Hofmann, M. R., &#38; Reitzenstein, S. (2022). Spin‐Lasing in
    Bimodal Quantum Dot Micropillar Cavities. <i>Laser &#38;amp; Photonics Reviews</i>,
    <i>16</i>(4). <a href="https://doi.org/10.1002/lpor.202100585">https://doi.org/10.1002/lpor.202100585</a>
  bibtex: '@article{Heermeier_Heuser_Große_Jung_Kaganskiy_Lindemann_Gerhardt_Hofmann_Reitzenstein_2022,
    title={Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities}, volume={16},
    DOI={<a href="https://doi.org/10.1002/lpor.202100585">10.1002/lpor.202100585</a>},
    number={4}, journal={Laser &#38;amp; Photonics Reviews}, publisher={Wiley}, author={Heermeier,
    Niels and Heuser, Tobias and Große, Jan and Jung, Natalie and Kaganskiy, Arsenty
    and Lindemann, Markus and Gerhardt, Nils C. and Hofmann, Martin R. and Reitzenstein,
    Stephan}, year={2022} }'
  chicago: Heermeier, Niels, Tobias Heuser, Jan Große, Natalie Jung, Arsenty Kaganskiy,
    Markus Lindemann, Nils C. Gerhardt, Martin R. Hofmann, and Stephan Reitzenstein.
    “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.” <i>Laser &#38;amp;
    Photonics Reviews</i> 16, no. 4 (2022). <a href="https://doi.org/10.1002/lpor.202100585">https://doi.org/10.1002/lpor.202100585</a>.
  ieee: 'N. Heermeier <i>et al.</i>, “Spin‐Lasing in Bimodal Quantum Dot Micropillar
    Cavities,” <i>Laser &#38;amp; Photonics Reviews</i>, vol. 16, no. 4, 2022, doi:
    <a href="https://doi.org/10.1002/lpor.202100585">10.1002/lpor.202100585</a>.'
  mla: Heermeier, Niels, et al. “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.”
    <i>Laser &#38;amp; Photonics Reviews</i>, vol. 16, no. 4, Wiley, 2022, doi:<a
    href="https://doi.org/10.1002/lpor.202100585">10.1002/lpor.202100585</a>.
  short: N. Heermeier, T. Heuser, J. Große, N. Jung, A. Kaganskiy, M. Lindemann, N.C.
    Gerhardt, M.R. Hofmann, S. Reitzenstein, Laser &#38;amp; Photonics Reviews 16
    (2022).
date_created: 2025-04-24T06:22:06Z
date_updated: 2026-02-25T09:38:52Z
doi: 10.1002/lpor.202100585
intvolume: '        16'
issue: '4'
keyword:
- bimodal micropillar cavities
- cavity quantum electrodynamics
- micro- lasers
- quantum dots
- spin-lasers
language:
- iso: eng
publication: Laser &amp; Photonics Reviews
publication_identifier:
  issn:
  - 1863-8880
  - 1863-8899
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities
type: journal_article
user_id: '15911'
volume: 16
year: '2022'
...
---
_id: '29204'
abstract:
- lang: eng
  text: 'An analysis of an optical Nyquist pulse synthesizer using Mach-Zehnder modulators
    is presented. The analysis allows to predict the upper limit of the effective
    number of bits of this type of photonic digital-to-analog converter. The analytical
    solution has been verified by means of electro-optic simulations. With this analysis
    the limiting factor for certain scenarios: relative intensity noise, distortions
    by driving the Mach-Zehnder modulator, or the signal generator phase noise can
    quickly be identified.'
author:
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
- first_name: Meysam
  full_name: Bahmanian, Meysam
  id: '69233'
  last_name: Bahmanian
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: https://orcid.org/0000-0002-5950-6618
citation:
  ama: Kress C, Bahmanian M, Schwabe T, Scheytt JC. Analysis of the effects of jitter,
    relative intensity noise, and nonlinearity on a photonic digital-to-analog converter
    based on optical Nyquist pulse synthesis. <i>Opt Express</i>. 2021;29(15):23671–23681.
    doi:<a href="https://doi.org/10.1364/OE.427424">10.1364/OE.427424</a>
  apa: Kress, C., Bahmanian, M., Schwabe, T., &#38; Scheytt, J. C. (2021). Analysis
    of the effects of jitter, relative intensity noise, and nonlinearity on a photonic
    digital-to-analog converter based on optical Nyquist pulse synthesis. <i>Opt.
    Express</i>, <i>29</i>(15), 23671–23681. <a href="https://doi.org/10.1364/OE.427424">https://doi.org/10.1364/OE.427424</a>
  bibtex: '@article{Kress_Bahmanian_Schwabe_Scheytt_2021, title={Analysis of the effects
    of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog
    converter based on optical Nyquist pulse synthesis}, volume={29}, DOI={<a href="https://doi.org/10.1364/OE.427424">10.1364/OE.427424</a>},
    number={15}, journal={Opt. Express}, publisher={OSA}, author={Kress, Christian
    and Bahmanian, Meysam and Schwabe, Tobias and Scheytt, J. Christoph}, year={2021},
    pages={23671–23681} }'
  chicago: 'Kress, Christian, Meysam Bahmanian, Tobias Schwabe, and J. Christoph Scheytt.
    “Analysis of the Effects of Jitter, Relative Intensity Noise, and Nonlinearity
    on a Photonic Digital-to-Analog Converter Based on Optical Nyquist Pulse Synthesis.”
    <i>Opt. Express</i> 29, no. 15 (2021): 23671–23681. <a href="https://doi.org/10.1364/OE.427424">https://doi.org/10.1364/OE.427424</a>.'
  ieee: 'C. Kress, M. Bahmanian, T. Schwabe, and J. C. Scheytt, “Analysis of the effects
    of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog
    converter based on optical Nyquist pulse synthesis,” <i>Opt. Express</i>, vol.
    29, no. 15, pp. 23671–23681, 2021, doi: <a href="https://doi.org/10.1364/OE.427424">10.1364/OE.427424</a>.'
  mla: Kress, Christian, et al. “Analysis of the Effects of Jitter, Relative Intensity
    Noise, and Nonlinearity on a Photonic Digital-to-Analog Converter Based on Optical
    Nyquist Pulse Synthesis.” <i>Opt. Express</i>, vol. 29, no. 15, OSA, 2021, pp.
    23671–23681, doi:<a href="https://doi.org/10.1364/OE.427424">10.1364/OE.427424</a>.
  short: C. Kress, M. Bahmanian, T. Schwabe, J.C. Scheytt, Opt. Express 29 (2021)
    23671–23681.
date_created: 2022-01-10T11:51:47Z
date_updated: 2023-06-16T06:56:27Z
department:
- _id: '58'
- _id: '230'
doi: 10.1364/OE.427424
intvolume: '        29'
issue: '15'
keyword:
- Analog to digital converters
- Diode lasers
- Laser sources
- Phase noise
- Signal processing
- Wavelength division multiplexers
language:
- iso: eng
page: 23671–23681
project:
- _id: '302'
  grant_number: '403154102'
  name: 'PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC'
- _id: '299'
  grant_number: 13N14882
  name: 'NyPhE: NyPhE - Nyquist Silicon Photonics Engine'
publication: Opt. Express
publisher: OSA
related_material:
  link:
  - relation: confirmation
    url: https://pubmed.ncbi.nlm.nih.gov/34614628/
status: public
title: Analysis of the effects of jitter, relative intensity noise, and nonlinearity
  on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis
type: journal_article
user_id: '13256'
volume: 29
year: '2021'
...
---
_id: '6543'
abstract:
- lang: eng
  text: Up to 400 mW of near-IR (1370-1500 nm) femtosecond pulses are generated from
    an optical parametric amplifier directly driven by a Yb:fiber oscillator delivering
    100\&\#x00A0;fs pulses at 1036 nm. The process is seeded by a stable supercontinuum
    obtained from a photonic crystal fiber. We use a single pass through a 3 mm, magnesium
    oxide-doped, periodically poled LiNbO3 downconversion crystal to produce a near-IR
    pulse train with a remarkable power stability of 1.4 % (RMS) during one hour.
    Tuning is achieved by the temperature and the poling period of the nonlinear crystal.
article_type: original
author:
- first_name: J.
  full_name: Mundry, J.
  last_name: Mundry
- first_name: J.
  full_name: Lohrenz, J.
  last_name: Lohrenz
- first_name: M.
  full_name: Betz, M.
  last_name: Betz
citation:
  ama: Mundry J, Lohrenz J, Betz M. Tunable femtosecond near-IR source by pumping
    an OPA directly with a 90 MHz Yb:fiber source. <i>Applied Optics</i>. 2017;56(11):3104-3108.
    doi:<a href="https://doi.org/10.1364/AO.56.003104">10.1364/AO.56.003104</a>
  apa: Mundry, J., Lohrenz, J., &#38; Betz, M. (2017). Tunable femtosecond near-IR
    source by pumping an OPA directly with a 90 MHz Yb:fiber source. <i>Applied Optics</i>,
    <i>56</i>(11), 3104–3108. <a href="https://doi.org/10.1364/AO.56.003104">https://doi.org/10.1364/AO.56.003104</a>
  bibtex: '@article{Mundry_Lohrenz_Betz_2017, title={Tunable femtosecond near-IR source
    by pumping an OPA directly with a 90 MHz Yb:fiber source}, volume={56}, DOI={<a
    href="https://doi.org/10.1364/AO.56.003104">10.1364/AO.56.003104</a>}, number={11},
    journal={Applied Optics}, publisher={OSA}, author={Mundry, J. and Lohrenz, J.
    and Betz, M.}, year={2017}, pages={3104–3108} }'
  chicago: 'Mundry, J., J. Lohrenz, and M. Betz. “Tunable Femtosecond Near-IR Source
    by Pumping an OPA Directly with a 90 MHz Yb:Fiber Source.” <i>Applied Optics</i>
    56, no. 11 (2017): 3104–8. <a href="https://doi.org/10.1364/AO.56.003104">https://doi.org/10.1364/AO.56.003104</a>.'
  ieee: J. Mundry, J. Lohrenz, and M. Betz, “Tunable femtosecond near-IR source by
    pumping an OPA directly with a 90 MHz Yb:fiber source,” <i>Applied Optics</i>,
    vol. 56, no. 11, pp. 3104–3108, 2017.
  mla: Mundry, J., et al. “Tunable Femtosecond Near-IR Source by Pumping an OPA Directly
    with a 90 MHz Yb:Fiber Source.” <i>Applied Optics</i>, vol. 56, no. 11, OSA, 2017,
    pp. 3104–08, doi:<a href="https://doi.org/10.1364/AO.56.003104">10.1364/AO.56.003104</a>.
  short: J. Mundry, J. Lohrenz, M. Betz, Applied Optics 56 (2017) 3104–3108.
date_created: 2019-01-09T10:06:44Z
date_updated: 2022-01-06T07:03:11Z
department:
- _id: '230'
doi: 10.1364/AO.56.003104
intvolume: '        56'
issue: '11'
keyword:
- Infrared and far-infrared lasers
- Ultrafast lasers
- Nonlinear optics
- parametric processes
- Parametric oscillators and amplifiers
- Femtosecond pulses
- Fiber lasers
- Fused silica
- Laser systems
- Photonic crystal fibers
- Pulse propagation
language:
- iso: eng
page: 3104-3108
project:
- _id: '53'
  name: TRR 142
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '58'
  name: TRR 142 - Subproject A1
publication: Applied Optics
publisher: OSA
status: public
title: Tunable femtosecond near-IR source by pumping an OPA directly with a 90 MHz
  Yb:fiber source
type: journal_article
user_id: '49428'
volume: 56
year: '2017'
...
---
_id: '4246'
abstract:
- lang: eng
  text: Spins in semiconductor quantum dots have been considered as prospective quantum
    bit excitations. Their coupling to the crystal environment manifests itself in
    a limitation of the spin coherence times to the microsecond range, both for electron
    and hole spins. This rather short-lived coherence compared to atomic states asks
    for manipulations on timescales as short as possible. Due to the huge dipole moment
    for transitions between the valence and conduction band, pulsed laser systems
    offer the possibility to perform manipulations within picoseconds or even faster.
    Here, we report on results that show the potential of optical spin manipulations
    with currently available pulsed laser systems. Using picosecond laser pulses,
    we demonstrate optically induced spin rotations of electron and hole spins. We
    further realize the optical decoupling of the hole spins from the nuclear surrounding
    at the nanosecond timescales and demonstrate an all-optical spin tomography for
    interacting electron spin sub-ensembles.
article_number: '17'
article_type: original
author:
- first_name: S.
  full_name: Varwig, S.
  last_name: Varwig
- first_name: E.
  full_name: Evers, E.
  last_name: Evers
- first_name: A.
  full_name: Greilich, A.
  last_name: Greilich
- first_name: D. R.
  full_name: Yakovlev, D. R.
  last_name: Yakovlev
- 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: 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: M.
  full_name: Bayer, M.
  last_name: Bayer
citation:
  ama: Varwig S, Evers E, Greilich A, et al. Advanced optical manipulation of carrier
    spins in (In,Ga)As quantum dots. <i>Applied Physics B</i>. 2016;122(1). doi:<a
    href="https://doi.org/10.1007/s00340-015-6274-y">10.1007/s00340-015-6274-y</a>
  apa: Varwig, S., Evers, E., Greilich, A., Yakovlev, D. R., Reuter, D., Wieck, A.
    D., Meier, T., Zrenner, A., &#38; Bayer, M. (2016). Advanced optical manipulation
    of carrier spins in (In,Ga)As quantum dots. <i>Applied Physics B</i>, <i>122</i>(1),
    Article 17. <a href="https://doi.org/10.1007/s00340-015-6274-y">https://doi.org/10.1007/s00340-015-6274-y</a>
  bibtex: '@article{Varwig_Evers_Greilich_Yakovlev_Reuter_Wieck_Meier_Zrenner_Bayer_2016,
    title={Advanced optical manipulation of carrier spins in (In,Ga)As quantum dots},
    volume={122}, DOI={<a href="https://doi.org/10.1007/s00340-015-6274-y">10.1007/s00340-015-6274-y</a>},
    number={117}, journal={Applied Physics B}, publisher={Springer Nature}, author={Varwig,
    S. and Evers, E. and Greilich, A. and Yakovlev, D. R. and Reuter, Dirk and Wieck,
    A. D. and Meier, Torsten and Zrenner, Artur and Bayer, M.}, year={2016} }'
  chicago: Varwig, S., E. Evers, A. Greilich, D. R. Yakovlev, Dirk Reuter, A. D. Wieck,
    Torsten Meier, Artur Zrenner, and M. Bayer. “Advanced Optical Manipulation of
    Carrier Spins in (In,Ga)As Quantum Dots.” <i>Applied Physics B</i> 122, no. 1
    (2016). <a href="https://doi.org/10.1007/s00340-015-6274-y">https://doi.org/10.1007/s00340-015-6274-y</a>.
  ieee: 'S. Varwig <i>et al.</i>, “Advanced optical manipulation of carrier spins
    in (In,Ga)As quantum dots,” <i>Applied Physics B</i>, vol. 122, no. 1, Art. no.
    17, 2016, doi: <a href="https://doi.org/10.1007/s00340-015-6274-y">10.1007/s00340-015-6274-y</a>.'
  mla: Varwig, S., et al. “Advanced Optical Manipulation of Carrier Spins in (In,Ga)As
    Quantum Dots.” <i>Applied Physics B</i>, vol. 122, no. 1, 17, Springer Nature,
    2016, doi:<a href="https://doi.org/10.1007/s00340-015-6274-y">10.1007/s00340-015-6274-y</a>.
  short: S. Varwig, E. Evers, A. Greilich, D.R. Yakovlev, D. Reuter, A.D. Wieck, T.
    Meier, A. Zrenner, M. Bayer, Applied Physics B 122 (2016).
date_created: 2018-08-29T08:35:10Z
date_updated: 2025-12-16T16:44:01Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
- _id: '170'
- _id: '293'
- _id: '292'
- _id: '35'
- _id: '290'
doi: 10.1007/s00340-015-6274-y
intvolume: '       122'
issue: '1'
keyword:
- Spin Polarization
- Pump Pulse
- Trion
- Spin Component
- Coherence Time
language:
- iso: eng
publication: Applied Physics B
publication_identifier:
  issn:
  - 0946-2171
  - 1432-0649
publication_status: published
publisher: Springer Nature
status: public
title: Advanced optical manipulation of carrier spins in (In,Ga)As quantum dots
type: journal_article
user_id: '16199'
volume: 122
year: '2016'
...
