---
_id: '43051'
abstract:
- lang: eng
  text: We demonstrate the numerical and experimental realization of optimized optical
    traveling-wave antennas made of low-loss dielectric materials. These antennas
    exhibit highly directive radiation patterns and our studies reveal that this nature
    comes from two dominant guided TE modes excited in the waveguide-like director
    of the antenna, in addition to the leaky modes. The optimized antennas possess
    a broadband nature and have a nearunity radiation efficiency at an operational
    wavelength of 780 nm. Compared to the previously studied plasmonic antennas for
    photon emission, our all-dielectric approach demonstrates a new class of highly
    directional, low-loss, and broadband optical antennas.
author:
- first_name: Henna
  full_name: Farheen, Henna
  id: '53444'
  last_name: Farheen
  orcid: 0000-0001-7730-3489
- first_name: Lok-Yee
  full_name: Yan, Lok-Yee
  last_name: Yan
- first_name: Till
  full_name: Leuteritz, Till
  last_name: Leuteritz
- first_name: Siqi
  full_name: Qiao, Siqi
  last_name: Qiao
- first_name: Florian
  full_name: Spreyer, Florian
  last_name: Spreyer
- first_name: Christian
  full_name: Schlickriede, Christian
  last_name: Schlickriede
- first_name: Viktor
  full_name: Quiring, Viktor
  last_name: Quiring
- first_name: Christof
  full_name: Eigner, Christof
  last_name: Eigner
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Stefan
  full_name: Linden, Stefan
  last_name: Linden
- first_name: Viktor
  full_name: Myroshnychenko, Viktor
  id: '46371'
  last_name: Myroshnychenko
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
citation:
  ama: 'Farheen H, Yan L-Y, Leuteritz T, et al. Tailoring the directive nature of
    optical waveguide antennas. In: García-Blanco SM, Cheben P, eds. <i>Integrated
    Optics: Devices, Materials, and Technologies XXVII</i>. SPIE; 2023:124241E. doi:<a
    href="https://doi.org/10.1117/12.2658921">10.1117/12.2658921</a>'
  apa: 'Farheen, H., Yan, L.-Y., Leuteritz, T., Qiao, S., Spreyer, F., Schlickriede,
    C., Quiring, V., Eigner, C., Silberhorn, C., Zentgraf, T., Linden, S., Myroshnychenko,
    V., &#38; Förstner, J. (2023). Tailoring the directive nature of optical waveguide
    antennas. In S. M. García-Blanco &#38; P. Cheben (Eds.), <i>Integrated Optics:
    Devices, Materials, and Technologies XXVII</i> (p. 124241E). SPIE. <a href="https://doi.org/10.1117/12.2658921">https://doi.org/10.1117/12.2658921</a>'
  bibtex: '@inproceedings{Farheen_Yan_Leuteritz_Qiao_Spreyer_Schlickriede_Quiring_Eigner_Silberhorn_Zentgraf_et
    al._2023, title={Tailoring the directive nature of optical waveguide antennas},
    DOI={<a href="https://doi.org/10.1117/12.2658921">10.1117/12.2658921</a>}, booktitle={Integrated
    Optics: Devices, Materials, and Technologies XXVII}, publisher={SPIE}, author={Farheen,
    Henna and Yan, Lok-Yee and Leuteritz, Till and Qiao, Siqi and Spreyer, Florian
    and Schlickriede, Christian and Quiring, Viktor and Eigner, Christof and Silberhorn,
    Christine and Zentgraf, Thomas and et al.}, editor={García-Blanco, Sonia M. and
    Cheben, Pavel}, year={2023}, pages={124241E} }'
  chicago: 'Farheen, Henna, Lok-Yee Yan, Till Leuteritz, Siqi Qiao, Florian Spreyer,
    Christian Schlickriede, Viktor Quiring, et al. “Tailoring the Directive Nature
    of Optical Waveguide Antennas.” In <i>Integrated Optics: Devices, Materials, and
    Technologies XXVII</i>, edited by Sonia M. García-Blanco and Pavel Cheben, 124241E.
    SPIE, 2023. <a href="https://doi.org/10.1117/12.2658921">https://doi.org/10.1117/12.2658921</a>.'
  ieee: 'H. Farheen <i>et al.</i>, “Tailoring the directive nature of optical waveguide
    antennas,” in <i>Integrated Optics: Devices, Materials, and Technologies XXVII</i>,
    2023, p. 124241E, doi: <a href="https://doi.org/10.1117/12.2658921">10.1117/12.2658921</a>.'
  mla: 'Farheen, Henna, et al. “Tailoring the Directive Nature of Optical Waveguide
    Antennas.” <i>Integrated Optics: Devices, Materials, and Technologies XXVII</i>,
    edited by Sonia M. García-Blanco and Pavel Cheben, SPIE, 2023, p. 124241E, doi:<a
    href="https://doi.org/10.1117/12.2658921">10.1117/12.2658921</a>.'
  short: 'H. Farheen, L.-Y. Yan, T. Leuteritz, S. Qiao, F. Spreyer, C. Schlickriede,
    V. Quiring, C. Eigner, C. Silberhorn, T. Zentgraf, S. Linden, V. Myroshnychenko,
    J. Förstner, in: S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics: Devices,
    Materials, and Technologies XXVII, SPIE, 2023, p. 124241E.'
date_created: 2023-03-21T12:28:31Z
date_updated: 2025-05-23T05:57:14Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '623'
doi: 10.1117/12.2658921
editor:
- first_name: Sonia M.
  full_name: García-Blanco, Sonia M.
  last_name: García-Blanco
- first_name: Pavel
  full_name: Cheben, Pavel
  last_name: Cheben
file:
- access_level: local
  content_type: application/pdf
  creator: fossie
  date_created: 2023-03-22T09:25:57Z
  date_updated: 2023-03-22T09:25:57Z
  file_id: '43062'
  file_name: 2023-01 Poster Photonics West Henna OWA_A0.pdf
  file_size: 1426599
  relation: main_file
file_date_updated: 2023-03-22T09:25:57Z
has_accepted_license: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: 124241E
project:
- _id: '53'
  grant_number: '231447078'
  name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
    Konzepten zu funktionellen Strukturen'
- _id: '65'
  grant_number: '231447078'
  name: 'TRR 142 - A08: TRR 142 - Nichtlineare Kopplung von Zwischenschicht-Exzitonen
    in van der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten
    (A08)'
publication: 'Integrated Optics: Devices, Materials, and Technologies XXVII'
publication_status: published
publisher: SPIE
status: public
title: Tailoring the directive nature of optical waveguide antennas
type: conference
user_id: '30525'
year: '2023'
...
---
_id: '25605'
abstract:
- lang: eng
  text: The nonlinear process of second harmonic generation (SHG) in monolayer (1L)
    transition metal dichalcogenides (TMD), like WS2, strongly depends on the polarization
    state of the excitation light. By combination of plasmonic nanostructures with
    1L-WS2 by transferring it onto a plasmonic nanoantenna array, a hybrid metasurface
    is realized impacting the polarization dependency of its SHG. Here, we investigate
    how plasmonic dipole resonances affect the process of SHG in plasmonic–TMD hybrid
    metasurfaces by nonlinear spectroscopy. We show that the polarization dependency
    is affected by the lattice structure of plasmonic nanoantenna arrays as well as
    by the relative orientation between the 1L-WS2 and the individual plasmonic nanoantennas.
    In addition, such hybrid metasurfaces show SHG in polarization states, where SHG
    is usually forbidden for either 1L-WS2 or plasmonic nanoantennas. By comparing
    the SHG in these channels with the SHG generated by the hybrid metasurface components,
    we detect an enhancement of the SHG signal by a factor of more than 40. Meanwhile,
    an attenuation of the SHG signal in usually allowed polarization states is observed.
    Our study provides valuable insight into hybrid systems where symmetries strongly
    affect the SHG and enable tailored SHG in 1L-WS2 for future applications.
article_type: original
author:
- first_name: Florian
  full_name: Spreyer, Florian
  last_name: Spreyer
- first_name: Claudia
  full_name: Ruppert, Claudia
  last_name: Ruppert
- first_name: Philip
  full_name: Georgi, Philip
  last_name: Georgi
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
citation:
  ama: Spreyer F, Ruppert C, Georgi P, Zentgraf T. Influence of Plasmon Resonances
    and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic Hybrid Metasurfaces.
    <i>ACS Nano</i>. 2021;15(10):16719-16728. doi:<a href="https://doi.org/10.1021/acsnano.1c06693">10.1021/acsnano.1c06693</a>
  apa: Spreyer, F., Ruppert, C., Georgi, P., &#38; Zentgraf, T. (2021). Influence
    of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic
    Hybrid Metasurfaces. <i>ACS Nano</i>, <i>15</i>(10), 16719–16728. <a href="https://doi.org/10.1021/acsnano.1c06693">https://doi.org/10.1021/acsnano.1c06693</a>
  bibtex: '@article{Spreyer_Ruppert_Georgi_Zentgraf_2021, title={Influence of Plasmon
    Resonances and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic
    Hybrid Metasurfaces}, volume={15}, DOI={<a href="https://doi.org/10.1021/acsnano.1c06693">10.1021/acsnano.1c06693</a>},
    number={10}, journal={ACS Nano}, author={Spreyer, Florian and Ruppert, Claudia
    and Georgi, Philip and Zentgraf, Thomas}, year={2021}, pages={16719–16728} }'
  chicago: 'Spreyer, Florian, Claudia Ruppert, Philip Georgi, and Thomas Zentgraf.
    “Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation
    in WS2–Plasmonic Hybrid Metasurfaces.” <i>ACS Nano</i> 15, no. 10 (2021): 16719–28.
    <a href="https://doi.org/10.1021/acsnano.1c06693">https://doi.org/10.1021/acsnano.1c06693</a>.'
  ieee: 'F. Spreyer, C. Ruppert, P. Georgi, and T. Zentgraf, “Influence of Plasmon
    Resonances and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic
    Hybrid Metasurfaces,” <i>ACS Nano</i>, vol. 15, no. 10, pp. 16719–16728, 2021,
    doi: <a href="https://doi.org/10.1021/acsnano.1c06693">10.1021/acsnano.1c06693</a>.'
  mla: Spreyer, Florian, et al. “Influence of Plasmon Resonances and Symmetry Effects
    on Second Harmonic Generation in WS2–Plasmonic Hybrid Metasurfaces.” <i>ACS Nano</i>,
    vol. 15, no. 10, 2021, pp. 16719–28, doi:<a href="https://doi.org/10.1021/acsnano.1c06693">10.1021/acsnano.1c06693</a>.
  short: F. Spreyer, C. Ruppert, P. Georgi, T. Zentgraf, ACS Nano 15 (2021) 16719–16728.
date_created: 2021-10-07T07:39:27Z
date_updated: 2022-01-06T06:57:07Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
doi: 10.1021/acsnano.1c06693
funded_apc: '1'
intvolume: '        15'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://pubs.acs.org/doi/10.1021/acsnano.1c06693
oa: '1'
page: 16719-16728
project:
- _id: '53'
  name: TRR 142
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '64'
  name: TRR 142 - Subproject A7
- _id: '65'
  name: TRR 142 - Subproject A8
publication: ACS Nano
publication_identifier:
  issn:
  - 1936-0851
  - 1936-086X
publication_status: published
quality_controlled: '1'
status: public
title: Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation
  in WS2–Plasmonic Hybrid Metasurfaces
type: journal_article
user_id: '30525'
volume: 15
year: '2021'
...
---
_id: '22450'
abstract:
- lang: eng
  text: We realize and investigate a nonlinear metasurface taking advantage of intersubband
    transitions in ultranarrow GaN/AlN multi-quantum well heterostructures. Owing
    to huge band offsets, the structures offer resonant transitions in the telecom
    window around 1.55 µm. These heterostructures are functionalized with an array
    of plasmonic antennas featuring cross-polarized resonances at these near-infrared
    wavelengths and their second harmonic. This kind of nonlinear metasurface allows
    for substantial second-harmonic generation at normal incidence which is completely
    absent for an antenna array without the multi-quantum well structure underneath.
    While the second harmonic is originally radiated only into the plane of the quantum
    wells, a proper geometrical arrangement of the plasmonic elements permits the
    redirection of the second-harmonic light to free-space radiation, which is emitted
    perpendicular to the surface.
article_number: '2134'
article_type: original
author:
- first_name: Jan
  full_name: Mundry, Jan
  last_name: Mundry
- first_name: Florian
  full_name: Spreyer, Florian
  last_name: Spreyer
- first_name: Valentin
  full_name: Jmerik, Valentin
  last_name: Jmerik
- first_name: Sergey
  full_name: Ivanov, Sergey
  last_name: Ivanov
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Markus
  full_name: Betz, Markus
  last_name: Betz
citation:
  ama: Mundry J, Spreyer F, Jmerik V, Ivanov S, Zentgraf T, Betz M. Nonlinear metasurface
    combining telecom-range intersubband transitions in GaN/AlN quantum wells with
    resonant plasmonic antenna arrays. <i>Optical Materials Express</i>. 2021;11(7).
    doi:<a href="https://doi.org/10.1364/ome.426236">10.1364/ome.426236</a>
  apa: Mundry, J., Spreyer, F., Jmerik, V., Ivanov, S., Zentgraf, T., &#38; Betz,
    M. (2021). Nonlinear metasurface combining telecom-range intersubband transitions
    in GaN/AlN quantum wells with resonant plasmonic antenna arrays. <i>Optical Materials
    Express</i>, <i>11</i>(7). <a href="https://doi.org/10.1364/ome.426236">https://doi.org/10.1364/ome.426236</a>
  bibtex: '@article{Mundry_Spreyer_Jmerik_Ivanov_Zentgraf_Betz_2021, title={Nonlinear
    metasurface combining telecom-range intersubband transitions in GaN/AlN quantum
    wells with resonant plasmonic antenna arrays}, volume={11}, DOI={<a href="https://doi.org/10.1364/ome.426236">10.1364/ome.426236</a>},
    number={72134}, journal={Optical Materials Express}, publisher={OSA}, author={Mundry,
    Jan and Spreyer, Florian and Jmerik, Valentin and Ivanov, Sergey and Zentgraf,
    Thomas and Betz, Markus}, year={2021} }'
  chicago: Mundry, Jan, Florian Spreyer, Valentin Jmerik, Sergey Ivanov, Thomas Zentgraf,
    and Markus Betz. “Nonlinear Metasurface Combining Telecom-Range Intersubband Transitions
    in GaN/AlN Quantum Wells with Resonant Plasmonic Antenna Arrays.” <i>Optical Materials
    Express</i> 11, no. 7 (2021). <a href="https://doi.org/10.1364/ome.426236">https://doi.org/10.1364/ome.426236</a>.
  ieee: J. Mundry, F. Spreyer, V. Jmerik, S. Ivanov, T. Zentgraf, and M. Betz, “Nonlinear
    metasurface combining telecom-range intersubband transitions in GaN/AlN quantum
    wells with resonant plasmonic antenna arrays,” <i>Optical Materials Express</i>,
    vol. 11, no. 7, 2021.
  mla: Mundry, Jan, et al. “Nonlinear Metasurface Combining Telecom-Range Intersubband
    Transitions in GaN/AlN Quantum Wells with Resonant Plasmonic Antenna Arrays.”
    <i>Optical Materials Express</i>, vol. 11, no. 7, 2134, OSA, 2021, doi:<a href="https://doi.org/10.1364/ome.426236">10.1364/ome.426236</a>.
  short: J. Mundry, F. Spreyer, V. Jmerik, S. Ivanov, T. Zentgraf, M. Betz, Optical
    Materials Express 11 (2021).
date_created: 2021-06-16T05:52:21Z
date_updated: 2022-01-06T06:55:33Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '429'
doi: 10.1364/ome.426236
intvolume: '        11'
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.osapublishing.org/ome/fulltext.cfm?uri=ome-11-7-2134&id=452008
oa: '1'
project:
- _id: '53'
  name: TRR 142
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '65'
  name: TRR 142 - Subproject A8
publication: Optical Materials Express
publication_identifier:
  issn:
  - 2159-3930
publication_status: published
publisher: OSA
quality_controlled: '1'
status: public
title: Nonlinear metasurface combining telecom-range intersubband transitions in GaN/AlN
  quantum wells with resonant plasmonic antenna arrays
type: journal_article
user_id: '30525'
volume: 11
year: '2021'
...
---
_id: '26987'
abstract:
- lang: eng
  text: Optical metasurfaces are perfect candidates for the phase and amplitude modulation
    of light, featuring an excellent basis for holographic applications. In this work,
    we present a dual amplitude holographic scheme based on the photon sieve principle,
    which is then combined with a phase hologram by utilizing the Pancharatnam–Berry
    phase. We demonstrate that two types of apertures, rectangular and square shapes
    in a gold film filled with silicon nanoantennas are sufficient to create two amplitude
    holograms at two different wavelengths in the visible, multiplexed with an additional
    phase-only hologram. The nanoantennas are tailored to adjust the spectral transmittance
    of the apertures, enabling the wavelength sensitivity. The phase-only hologram
    is implemented by utilizing the anisotropic rectangular structure. Interestingly,
    such three holograms have quantitative mathematical correlations with each other.
    Thus, the flexibility of polarization and wavelength channels can be utilized
    with custom-tailored features to achieve such amplitude and phase holography simultaneously
    without sacrificing any space-bandwidth product. The present scheme has the potential
    to store different pieces of information which can be displayed separately by
    switching the wavelength or the polarization state of the reading light beam.
author:
- first_name: Daniel
  full_name: Frese, Daniel
  last_name: Frese
- first_name: Basudeb
  full_name: Sain, Basudeb
  last_name: Sain
- first_name: Hongqiang
  full_name: Zhou, Hongqiang
  last_name: Zhou
- first_name: Yongtian
  full_name: Wang, Yongtian
  last_name: Wang
- first_name: Lingling
  full_name: Huang, Lingling
  last_name: Huang
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
citation:
  ama: Frese D, Sain B, Zhou H, Wang Y, Huang L, Zentgraf T. A wavelength and polarization
    selective photon sieve for holographic applications. <i>Nanophotonics</i>. 2021;10(18):4543-4550.
    doi:<a href="https://doi.org/10.1515/nanoph-2021-0440">10.1515/nanoph-2021-0440</a>
  apa: Frese, D., Sain, B., Zhou, H., Wang, Y., Huang, L., &#38; Zentgraf, T. (2021).
    A wavelength and polarization selective photon sieve for holographic applications.
    <i>Nanophotonics</i>, <i>10</i>(18), 4543–4550. <a href="https://doi.org/10.1515/nanoph-2021-0440">https://doi.org/10.1515/nanoph-2021-0440</a>
  bibtex: '@article{Frese_Sain_Zhou_Wang_Huang_Zentgraf_2021, title={A wavelength
    and polarization selective photon sieve for holographic applications}, volume={10},
    DOI={<a href="https://doi.org/10.1515/nanoph-2021-0440">10.1515/nanoph-2021-0440</a>},
    number={18}, journal={Nanophotonics}, publisher={De Gruyter}, author={Frese, Daniel
    and Sain, Basudeb and Zhou, Hongqiang and Wang, Yongtian and Huang, Lingling and
    Zentgraf, Thomas}, year={2021}, pages={4543–4550} }'
  chicago: 'Frese, Daniel, Basudeb Sain, Hongqiang Zhou, Yongtian Wang, Lingling Huang,
    and Thomas Zentgraf. “A Wavelength and Polarization Selective Photon Sieve for
    Holographic Applications.” <i>Nanophotonics</i> 10, no. 18 (2021): 4543–50. <a
    href="https://doi.org/10.1515/nanoph-2021-0440">https://doi.org/10.1515/nanoph-2021-0440</a>.'
  ieee: 'D. Frese, B. Sain, H. Zhou, Y. Wang, L. Huang, and T. Zentgraf, “A wavelength
    and polarization selective photon sieve for holographic applications,” <i>Nanophotonics</i>,
    vol. 10, no. 18, pp. 4543–4550, 2021, doi: <a href="https://doi.org/10.1515/nanoph-2021-0440">10.1515/nanoph-2021-0440</a>.'
  mla: Frese, Daniel, et al. “A Wavelength and Polarization Selective Photon Sieve
    for Holographic Applications.” <i>Nanophotonics</i>, vol. 10, no. 18, De Gruyter,
    2021, pp. 4543–50, doi:<a href="https://doi.org/10.1515/nanoph-2021-0440">10.1515/nanoph-2021-0440</a>.
  short: D. Frese, B. Sain, H. Zhou, Y. Wang, L. Huang, T. Zentgraf, Nanophotonics
    10 (2021) 4543–4550.
date_created: 2021-10-28T07:15:52Z
date_updated: 2022-01-20T07:33:16Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
doi: 10.1515/nanoph-2021-0440
funded_apc: '1'
intvolume: '        10'
issue: '18'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0440/html
oa: '1'
page: 4543-4550
project:
- _id: '53'
  name: TRR 142
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '65'
  name: TRR 142 - Subproject A8
publication: Nanophotonics
publication_identifier:
  issn:
  - 2192-8614
  - 2192-8606
publication_status: published
publisher: De Gruyter
quality_controlled: '1'
status: public
title: A wavelength and polarization selective photon sieve for holographic applications
type: journal_article
user_id: '30525'
volume: 10
year: '2021'
...
---
_id: '25227'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>Quantum well (QW) heterostructures
    have been extensively used for the realization of a wide range of optical and
    electronic devices. Exploiting their potential for further improvement and development
    requires a fundamental understanding of their electronic structure. So far, the
    most commonly used experimental techniques for this purpose have been all-optical
    spectroscopy methods that, however, are generally averaging in momentum space.
    Additional information can be gained by angle-resolved photoelectron spectroscopy
    (ARPES), which measures the electronic structure with momentum resolution. Here
    we report on the use of extremely low-energy ARPES (photon energy ~ 7 eV) to increase
    depth sensitivity and access buried QW states, located at 3 nm and 6 nm below
    the surface of cubic-GaN/AlN and GaAs/AlGaAs heterostructures, respectively. We
    find that the QW states in cubic-GaN/AlN can indeed be observed, but not their
    energy dispersion, because of the high surface roughness. The GaAs/AlGaAs QW states,
    on the other hand, are buried too deep to be detected by extremely low-energy
    ARPES. Since the sample surface is much flatter, the ARPES spectra of the GaAs/AlGaAs
    show distinct features in momentum space, which can be reconducted to the band
    structure of the topmost surface layer of the QW structure. Our results provide
    important information about the samples’ properties required to perform extremely
    low-energy ARPES experiments on electronic states buried in semiconductor heterostructures.</jats:p>
article_number: '19081'
article_type: original
author:
- first_name: Mahdi
  full_name: Hajlaoui, Mahdi
  last_name: Hajlaoui
- first_name: Stefano
  full_name: Ponzoni, Stefano
  last_name: Ponzoni
- first_name: Michael
  full_name: Deppe, Michael
  last_name: Deppe
- first_name: Tobias
  full_name: Henksmeier, Tobias
  last_name: Henksmeier
- first_name: Donat Josef
  full_name: As, Donat Josef
  id: '14'
  last_name: As
  orcid: 0000-0003-1121-3565
- first_name: Dirk
  full_name: Reuter, Dirk
  id: '37763'
  last_name: Reuter
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Gunther
  full_name: Springholz, Gunther
  last_name: Springholz
- first_name: Claus Michael
  full_name: Schneider, Claus Michael
  last_name: Schneider
- first_name: Stefan
  full_name: Cramm, Stefan
  last_name: Cramm
- first_name: Mirko
  full_name: Cinchetti, Mirko
  last_name: Cinchetti
citation:
  ama: Hajlaoui M, Ponzoni S, Deppe M, et al. Extremely low-energy ARPES of quantum
    well states in cubic-GaN/AlN and GaAs/AlGaAs heterostructures. <i>Scientific Reports</i>.
    2021;11. doi:<a href="https://doi.org/10.1038/s41598-021-98569-6">10.1038/s41598-021-98569-6</a>
  apa: Hajlaoui, M., Ponzoni, S., Deppe, M., Henksmeier, T., As, D. J., Reuter, D.,
    Zentgraf, T., Springholz, G., Schneider, C. M., Cramm, S., &#38; Cinchetti, M.
    (2021). Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN and
    GaAs/AlGaAs heterostructures. <i>Scientific Reports</i>, <i>11</i>, Article 19081.
    <a href="https://doi.org/10.1038/s41598-021-98569-6">https://doi.org/10.1038/s41598-021-98569-6</a>
  bibtex: '@article{Hajlaoui_Ponzoni_Deppe_Henksmeier_As_Reuter_Zentgraf_Springholz_Schneider_Cramm_et
    al._2021, title={Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN
    and GaAs/AlGaAs heterostructures}, volume={11}, DOI={<a href="https://doi.org/10.1038/s41598-021-98569-6">10.1038/s41598-021-98569-6</a>},
    number={19081}, journal={Scientific Reports}, author={Hajlaoui, Mahdi and Ponzoni,
    Stefano and Deppe, Michael and Henksmeier, Tobias and As, Donat Josef and Reuter,
    Dirk and Zentgraf, Thomas and Springholz, Gunther and Schneider, Claus Michael
    and Cramm, Stefan and et al.}, year={2021} }'
  chicago: Hajlaoui, Mahdi, Stefano Ponzoni, Michael Deppe, Tobias Henksmeier, Donat
    Josef As, Dirk Reuter, Thomas Zentgraf, et al. “Extremely Low-Energy ARPES of
    Quantum Well States in Cubic-GaN/AlN and GaAs/AlGaAs Heterostructures.” <i>Scientific
    Reports</i> 11 (2021). <a href="https://doi.org/10.1038/s41598-021-98569-6">https://doi.org/10.1038/s41598-021-98569-6</a>.
  ieee: 'M. Hajlaoui <i>et al.</i>, “Extremely low-energy ARPES of quantum well states
    in cubic-GaN/AlN and GaAs/AlGaAs heterostructures,” <i>Scientific Reports</i>,
    vol. 11, Art. no. 19081, 2021, doi: <a href="https://doi.org/10.1038/s41598-021-98569-6">10.1038/s41598-021-98569-6</a>.'
  mla: Hajlaoui, Mahdi, et al. “Extremely Low-Energy ARPES of Quantum Well States
    in Cubic-GaN/AlN and GaAs/AlGaAs Heterostructures.” <i>Scientific Reports</i>,
    vol. 11, 19081, 2021, doi:<a href="https://doi.org/10.1038/s41598-021-98569-6">10.1038/s41598-021-98569-6</a>.
  short: M. Hajlaoui, S. Ponzoni, M. Deppe, T. Henksmeier, D.J. As, D. Reuter, T.
    Zentgraf, G. Springholz, C.M. Schneider, S. Cramm, M. Cinchetti, Scientific Reports
    11 (2021).
date_created: 2021-10-01T07:29:15Z
date_updated: 2023-10-09T09:15:12Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
doi: 10.1038/s41598-021-98569-6
intvolume: '        11'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.nature.com/articles/s41598-021-98569-6
oa: '1'
project:
- _id: '53'
  grant_number: '231447078'
  name: TRR 142
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '65'
  grant_number: '231447078'
  name: TRR 142 - Subproject A8
- _id: '55'
  name: TRR 142 - Project Area B
- _id: '67'
  name: TRR 142 - Subproject B2
- _id: '63'
  grant_number: '231447078'
  name: TRR 142 - Subproject A6
publication: Scientific Reports
publication_identifier:
  issn:
  - 2045-2322
publication_status: published
quality_controlled: '1'
status: public
title: Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN and GaAs/AlGaAs
  heterostructures
type: journal_article
user_id: '14931'
volume: 11
year: '2021'
...
---
_id: '21475'
article_type: letter_note
author:
- first_name: Daniel
  full_name: Frese, Daniel
  last_name: Frese
- first_name: Qunshuo
  full_name: Wei, Qunshuo
  last_name: Wei
- first_name: Yongtian
  full_name: Wang, Yongtian
  last_name: Wang
- first_name: Mirko
  full_name: Cinchetti, Mirko
  last_name: Cinchetti
- first_name: Lingling
  full_name: Huang, Lingling
  last_name: Huang
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
citation:
  ama: Frese D, Wei Q, Wang Y, Cinchetti M, Huang L, Zentgraf T. Nonlinear Bicolor
    Holography Using Plasmonic Metasurfaces. <i>ACS Photonics</i>. 2021;8(4):1013-1019.
    doi:<a href="https://doi.org/10.1021/acsphotonics.1c00028">10.1021/acsphotonics.1c00028</a>
  apa: Frese, D., Wei, Q., Wang, Y., Cinchetti, M., Huang, L., &#38; Zentgraf, T.
    (2021). Nonlinear Bicolor Holography Using Plasmonic Metasurfaces. <i>ACS Photonics</i>,
    <i>8</i>(4), 1013–1019. <a href="https://doi.org/10.1021/acsphotonics.1c00028">https://doi.org/10.1021/acsphotonics.1c00028</a>
  bibtex: '@article{Frese_Wei_Wang_Cinchetti_Huang_Zentgraf_2021, title={Nonlinear
    Bicolor Holography Using Plasmonic Metasurfaces}, volume={8}, DOI={<a href="https://doi.org/10.1021/acsphotonics.1c00028">10.1021/acsphotonics.1c00028</a>},
    number={4}, journal={ACS Photonics}, author={Frese, Daniel and Wei, Qunshuo and
    Wang, Yongtian and Cinchetti, Mirko and Huang, Lingling and Zentgraf, Thomas},
    year={2021}, pages={1013–1019} }'
  chicago: 'Frese, Daniel, Qunshuo Wei, Yongtian Wang, Mirko Cinchetti, Lingling Huang,
    and Thomas Zentgraf. “Nonlinear Bicolor Holography Using Plasmonic Metasurfaces.”
    <i>ACS Photonics</i> 8, no. 4 (2021): 1013–19. <a href="https://doi.org/10.1021/acsphotonics.1c00028">https://doi.org/10.1021/acsphotonics.1c00028</a>.'
  ieee: 'D. Frese, Q. Wei, Y. Wang, M. Cinchetti, L. Huang, and T. Zentgraf, “Nonlinear
    Bicolor Holography Using Plasmonic Metasurfaces,” <i>ACS Photonics</i>, vol. 8,
    no. 4, pp. 1013–1019, 2021, doi: <a href="https://doi.org/10.1021/acsphotonics.1c00028">10.1021/acsphotonics.1c00028</a>.'
  mla: Frese, Daniel, et al. “Nonlinear Bicolor Holography Using Plasmonic Metasurfaces.”
    <i>ACS Photonics</i>, vol. 8, no. 4, 2021, pp. 1013–19, doi:<a href="https://doi.org/10.1021/acsphotonics.1c00028">10.1021/acsphotonics.1c00028</a>.
  short: D. Frese, Q. Wei, Y. Wang, M. Cinchetti, L. Huang, T. Zentgraf, ACS Photonics
    8 (2021) 1013–1019.
date_created: 2021-03-12T11:01:53Z
date_updated: 2025-01-08T11:40:50Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
doi: 10.1021/acsphotonics.1c00028
funded_apc: '1'
intvolume: '         8'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: 1013-1019
project:
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '65'
  grant_number: '231447078'
  name: TRR 142 - Subproject A8
- _id: '53'
  grant_number: '231447078'
  name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
    Konzepten zu funktionellen Strukturen'
publication: ACS Photonics
publication_identifier:
  issn:
  - 2330-4022
  - 2330-4022
publication_status: published
quality_controlled: '1'
status: public
title: Nonlinear Bicolor Holography Using Plasmonic Metasurfaces
type: journal_article
user_id: '30525'
volume: 8
year: '2021'
...
---
_id: '11953'
abstract:
- lang: eng
  text: As flexible optical devices that can manipulate the phase and amplitude of
    light, metasurfaces would clearly benefit from directional optical properties.
    However, single layer metasurface systems consisting of two-dimensional nanoparticle
    arrays exhibit only a weak spatial asymmetry perpendicular to the surface and
    therefore have mostly symmetric transmission features. Here, we present a metasurface
    design principle for nonreciprocal polarization encryption of holographic images.
    Our approach is based on a two-layer plasmonic metasurface design that introduces
    a local asymmetry and generates a bidirectional functionality with full phase
    and amplitude control of the transmitted light. The encoded hologram is designed
    to appear in a particular linear cross-polarization channel, while it is disappearing
    in the reverse propagation direction. Hence, layered metasurface systems can feature
    asymmetric transmission with full phase and amplitude control and therefore expand
    the design freedom in nanoscale optical devices toward asymmetric information
    processing and security features for anticounterfeiting applications.
article_type: original
author:
- first_name: Daniel
  full_name: Frese, Daniel
  last_name: Frese
- first_name: Qunshuo
  full_name: Wei, Qunshuo
  last_name: Wei
- first_name: Yongtian
  full_name: Wang, Yongtian
  last_name: Wang
- first_name: Lingling
  full_name: Huang, Lingling
  last_name: Huang
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
citation:
  ama: Frese D, Wei Q, Wang Y, Huang L, Zentgraf T. Nonreciprocal Asymmetric Polarization
    Encryption by Layered Plasmonic Metasurfaces. <i>Nano Letters</i>. 2019;19(6):3976-3980.
    doi:<a href="https://doi.org/10.1021/acs.nanolett.9b01298">10.1021/acs.nanolett.9b01298</a>
  apa: Frese, D., Wei, Q., Wang, Y., Huang, L., &#38; Zentgraf, T. (2019). Nonreciprocal
    Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces. <i>Nano
    Letters</i>, <i>19</i>(6), 3976–3980. <a href="https://doi.org/10.1021/acs.nanolett.9b01298">https://doi.org/10.1021/acs.nanolett.9b01298</a>
  bibtex: '@article{Frese_Wei_Wang_Huang_Zentgraf_2019, title={Nonreciprocal Asymmetric
    Polarization Encryption by Layered Plasmonic Metasurfaces}, volume={19}, DOI={<a
    href="https://doi.org/10.1021/acs.nanolett.9b01298">10.1021/acs.nanolett.9b01298</a>},
    number={6}, journal={Nano Letters}, author={Frese, Daniel and Wei, Qunshuo and
    Wang, Yongtian and Huang, Lingling and Zentgraf, Thomas}, year={2019}, pages={3976–3980}
    }'
  chicago: 'Frese, Daniel, Qunshuo Wei, Yongtian Wang, Lingling Huang, and Thomas
    Zentgraf. “Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic
    Metasurfaces.” <i>Nano Letters</i> 19, no. 6 (2019): 3976–80. <a href="https://doi.org/10.1021/acs.nanolett.9b01298">https://doi.org/10.1021/acs.nanolett.9b01298</a>.'
  ieee: 'D. Frese, Q. Wei, Y. Wang, L. Huang, and T. Zentgraf, “Nonreciprocal Asymmetric
    Polarization Encryption by Layered Plasmonic Metasurfaces,” <i>Nano Letters</i>,
    vol. 19, no. 6, pp. 3976–3980, 2019, doi: <a href="https://doi.org/10.1021/acs.nanolett.9b01298">10.1021/acs.nanolett.9b01298</a>.'
  mla: Frese, Daniel, et al. “Nonreciprocal Asymmetric Polarization Encryption by
    Layered Plasmonic Metasurfaces.” <i>Nano Letters</i>, vol. 19, no. 6, 2019, pp.
    3976–80, doi:<a href="https://doi.org/10.1021/acs.nanolett.9b01298">10.1021/acs.nanolett.9b01298</a>.
  short: D. Frese, Q. Wei, Y. Wang, L. Huang, T. Zentgraf, Nano Letters 19 (2019)
    3976–3980.
date_created: 2019-07-15T07:55:26Z
date_updated: 2022-01-06T06:51:13Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '429'
doi: 10.1021/acs.nanolett.9b01298
external_id:
  pmid:
  - '31050899'
funded_apc: '1'
intvolume: '        19'
issue: '6'
language:
- iso: eng
page: 3976-3980
pmid: '1'
project:
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '65'
  name: TRR 142 - Subproject A8
- _id: '53'
  name: TRR 142
publication: Nano Letters
publication_identifier:
  issn:
  - 1530-6984
  - 1530-6992
publication_status: published
quality_controlled: '1'
status: public
title: Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces
type: journal_article
user_id: '30525'
volume: 19
year: '2019'
...
