---
_id: '50840'
abstract:
- lang: eng
  text: <jats:p>Superconducting nanowire single-photon detectors (SNSPDs) have been
    widely used to study the discrete nature of quantum states of light in the form
    of photon-counting experiments. We show that SNSPDs can also be used to study
    continuous variables of optical quantum states by performing homodyne detection
    at a bandwidth of 400 kHz. By measuring the interference of a continuous-wave
    field of a local oscillator with the field of the vacuum state using two SNSPDs,
    we show that the variance of the difference in count rates is linearly proportional
    to the photon flux of the local oscillator over almost five orders of magnitude.
    The resulting shot-noise clearance of (46.0 ± 1.1) dB is the highest reported
    clearance for a balanced optical homodyne detector, demonstrating their potential
    for measuring highly squeezed states in the continuous-wave regime. In addition,
    we measured a CMRR = 22.4 dB. From the joint click counting statistics, we also
    measure the phase-dependent quadrature of a weak coherent state to demonstrate
    our device’s functionality as a homodyne detector.</jats:p>
article_number: '1'
author:
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Timon
  full_name: Schapeler, Timon
  id: '55629'
  last_name: Schapeler
  orcid: 0000-0001-7652-1716
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: Protte M, Schapeler T, Sperling J, Bartley T. Low-noise balanced homodyne detection
    with superconducting nanowire single-photon detectors. <i>Optica Quantum</i>.
    2024;2(1). doi:<a href="https://doi.org/10.1364/opticaq.502201">10.1364/opticaq.502201</a>
  apa: Protte, M., Schapeler, T., Sperling, J., &#38; Bartley, T. (2024). Low-noise
    balanced homodyne detection with superconducting nanowire single-photon detectors.
    <i>Optica Quantum</i>, <i>2</i>(1), Article 1. <a href="https://doi.org/10.1364/opticaq.502201">https://doi.org/10.1364/opticaq.502201</a>
  bibtex: '@article{Protte_Schapeler_Sperling_Bartley_2024, title={Low-noise balanced
    homodyne detection with superconducting nanowire single-photon detectors}, volume={2},
    DOI={<a href="https://doi.org/10.1364/opticaq.502201">10.1364/opticaq.502201</a>},
    number={11}, journal={Optica Quantum}, publisher={Optica Publishing Group}, author={Protte,
    Maximilian and Schapeler, Timon and Sperling, Jan and Bartley, Tim}, year={2024}
    }'
  chicago: Protte, Maximilian, Timon Schapeler, Jan Sperling, and Tim Bartley. “Low-Noise
    Balanced Homodyne Detection with Superconducting Nanowire Single-Photon Detectors.”
    <i>Optica Quantum</i> 2, no. 1 (2024). <a href="https://doi.org/10.1364/opticaq.502201">https://doi.org/10.1364/opticaq.502201</a>.
  ieee: 'M. Protte, T. Schapeler, J. Sperling, and T. Bartley, “Low-noise balanced
    homodyne detection with superconducting nanowire single-photon detectors,” <i>Optica
    Quantum</i>, vol. 2, no. 1, Art. no. 1, 2024, doi: <a href="https://doi.org/10.1364/opticaq.502201">10.1364/opticaq.502201</a>.'
  mla: Protte, Maximilian, et al. “Low-Noise Balanced Homodyne Detection with Superconducting
    Nanowire Single-Photon Detectors.” <i>Optica Quantum</i>, vol. 2, no. 1, 1, Optica
    Publishing Group, 2024, doi:<a href="https://doi.org/10.1364/opticaq.502201">10.1364/opticaq.502201</a>.
  short: M. Protte, T. Schapeler, J. Sperling, T. Bartley, Optica Quantum 2 (2024).
date_created: 2024-01-25T11:48:02Z
date_updated: 2025-12-18T17:06:27Z
department:
- _id: '15'
- _id: '623'
doi: 10.1364/opticaq.502201
intvolume: '         2'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '191'
  name: 'PhoQuant: Photonische Quantencomputer -  Quantencomputing Testplattform'
- _id: '239'
  name: 'ERC-Grant: QuESADILLA: Quantum Engineering Superconducting Array Detectors
    in Low-Light Applications'
- _id: '209'
  name: 'ISOQC: Quantenkommunikation mit integrierter Optik im Zusammenhang mit supraleitender
    Elektronik'
publication: Optica Quantum
publication_identifier:
  issn:
  - 2837-6714
publication_status: published
publisher: Optica Publishing Group
status: public
title: Low-noise balanced homodyne detection with superconducting nanowire single-photon
  detectors
type: journal_article
user_id: '55629'
volume: 2
year: '2024'
...
---
_id: '48399'
abstract:
- lang: eng
  text: <jats:p>Quantum photonic processing via electro-optic components typically
    requires electronic links across different operation environments, especially
    when interfacing cryogenic components such as superconducting single photon detectors
    with room-temperature control and readout electronics. However, readout and driving
    electronics can introduce detrimental parasitic effects. Here we show an all-optical
    control and readout of a superconducting nanowire single photon detector (SNSPD),
    completely electrically decoupled from room temperature electronics. We provide
    the operation power for the superconducting detector via a cryogenic photodiode,
    and readout single photon detection signals via a cryogenic electro-optic modulator
    in the same cryostat. This method opens the possibility for control and readout
    of superconducting circuits, and feedforward for photonic quantum computing.</jats:p>
article_number: '32717'
author:
- first_name: Frederik
  full_name: Thiele, Frederik
  id: '50819'
  last_name: Thiele
  orcid: 0000-0003-0663-5587
- first_name: Thomas
  full_name: Hummel, Thomas
  id: '83846'
  last_name: Hummel
- first_name: Adam N.
  full_name: McCaughan, Adam N.
  last_name: McCaughan
- first_name: Julian
  full_name: Brockmeier, Julian
  id: '44807'
  last_name: Brockmeier
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Victor
  full_name: Quiring, Victor
  last_name: Quiring
- first_name: Sebastian
  full_name: Lengeling, Sebastian
  id: '44373'
  last_name: Lengeling
- first_name: Christof
  full_name: Eigner, Christof
  id: '13244'
  last_name: Eigner
  orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: Thiele F, Hummel T, McCaughan AN, et al. All optical operation of a superconducting
    photonic interface. <i>Optics Express</i>. 2023;31(20). doi:<a href="https://doi.org/10.1364/oe.492035">10.1364/oe.492035</a>
  apa: Thiele, F., Hummel, T., McCaughan, A. N., Brockmeier, J., Protte, M., Quiring,
    V., Lengeling, S., Eigner, C., Silberhorn, C., &#38; Bartley, T. (2023). All optical
    operation of a superconducting photonic interface. <i>Optics Express</i>, <i>31</i>(20),
    Article 32717. <a href="https://doi.org/10.1364/oe.492035">https://doi.org/10.1364/oe.492035</a>
  bibtex: '@article{Thiele_Hummel_McCaughan_Brockmeier_Protte_Quiring_Lengeling_Eigner_Silberhorn_Bartley_2023,
    title={All optical operation of a superconducting photonic interface}, volume={31},
    DOI={<a href="https://doi.org/10.1364/oe.492035">10.1364/oe.492035</a>}, number={2032717},
    journal={Optics Express}, publisher={Optica Publishing Group}, author={Thiele,
    Frederik and Hummel, Thomas and McCaughan, Adam N. and Brockmeier, Julian and
    Protte, Maximilian and Quiring, Victor and Lengeling, Sebastian and Eigner, Christof
    and Silberhorn, Christine and Bartley, Tim}, year={2023} }'
  chicago: Thiele, Frederik, Thomas Hummel, Adam N. McCaughan, Julian Brockmeier,
    Maximilian Protte, Victor Quiring, Sebastian Lengeling, Christof Eigner, Christine
    Silberhorn, and Tim Bartley. “All Optical Operation of a Superconducting Photonic
    Interface.” <i>Optics Express</i> 31, no. 20 (2023). <a href="https://doi.org/10.1364/oe.492035">https://doi.org/10.1364/oe.492035</a>.
  ieee: 'F. Thiele <i>et al.</i>, “All optical operation of a superconducting photonic
    interface,” <i>Optics Express</i>, vol. 31, no. 20, Art. no. 32717, 2023, doi:
    <a href="https://doi.org/10.1364/oe.492035">10.1364/oe.492035</a>.'
  mla: Thiele, Frederik, et al. “All Optical Operation of a Superconducting Photonic
    Interface.” <i>Optics Express</i>, vol. 31, no. 20, 32717, Optica Publishing Group,
    2023, doi:<a href="https://doi.org/10.1364/oe.492035">10.1364/oe.492035</a>.
  short: F. Thiele, T. Hummel, A.N. McCaughan, J. Brockmeier, M. Protte, V. Quiring,
    S. Lengeling, C. Eigner, C. Silberhorn, T. Bartley, Optics Express 31 (2023).
date_created: 2023-10-24T06:43:16Z
date_updated: 2023-11-27T08:43:33Z
doi: 10.1364/oe.492035
intvolume: '        31'
issue: '20'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: Optics Express
publication_identifier:
  issn:
  - 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: All optical operation of a superconducting photonic interface
type: journal_article
user_id: '50819'
volume: 31
year: '2023'
...
---
_id: '44044'
abstract:
- lang: eng
  text: "Dispersion is present in every optical setup and is often an undesired effect,
    especially in nonlinear-optical experiments where ultrashort laser pulses are
    needed. Typically, bulky pulse compressors consisting of gratings or prisms are
    used\r\nto address this issue by precompensating the dispersion of the optical
    components. However, these devices are only able to compensate for a part of the
    dispersion (second-order dispersion). Here, we present a compact pulse-shaping
    device that uses plasmonic metasurfaces to apply an arbitrarily designed spectral
    phase delay allowing for a full dispersion control. Furthermore, with specific
    phase encodings, this device can be used to temporally reshape the incident laser
    pulses into more complex pulse forms such as a double pulse. We verify the performance
    of our device by using an SHG-FROG measurement setup together with a retrieval
    algorithm to extract the dispersion that our device applies to an incident laser
    pulse."
article_type: original
author:
- first_name: René
  full_name: Geromel, René
  last_name: Geromel
- first_name: Philip
  full_name: Georgi, Philip
  last_name: Georgi
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Shiwei
  full_name: Lei, Shiwei
  last_name: Lei
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
- 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: Geromel R, Georgi P, Protte M, et al. Compact Metasurface-Based Optical Pulse-Shaping
    Device. <i>Nano Letters</i>. 2023;23(8):3196-3201. doi:<a href="https://doi.org/10.1021/acs.nanolett.2c04980">10.1021/acs.nanolett.2c04980</a>
  apa: Geromel, R., Georgi, P., Protte, M., Lei, S., Bartley, T., Huang, L., &#38;
    Zentgraf, T. (2023). Compact Metasurface-Based Optical Pulse-Shaping Device. <i>Nano
    Letters</i>, <i>23</i>(8), 3196–3201. <a href="https://doi.org/10.1021/acs.nanolett.2c04980">https://doi.org/10.1021/acs.nanolett.2c04980</a>
  bibtex: '@article{Geromel_Georgi_Protte_Lei_Bartley_Huang_Zentgraf_2023, title={Compact
    Metasurface-Based Optical Pulse-Shaping Device}, volume={23}, DOI={<a href="https://doi.org/10.1021/acs.nanolett.2c04980">10.1021/acs.nanolett.2c04980</a>},
    number={8}, journal={Nano Letters}, publisher={American Chemical Society (ACS)},
    author={Geromel, René and Georgi, Philip and Protte, Maximilian and Lei, Shiwei
    and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}, year={2023}, pages={3196–3201}
    }'
  chicago: 'Geromel, René, Philip Georgi, Maximilian Protte, Shiwei Lei, Tim Bartley,
    Lingling Huang, and Thomas Zentgraf. “Compact Metasurface-Based Optical Pulse-Shaping
    Device.” <i>Nano Letters</i> 23, no. 8 (2023): 3196–3201. <a href="https://doi.org/10.1021/acs.nanolett.2c04980">https://doi.org/10.1021/acs.nanolett.2c04980</a>.'
  ieee: 'R. Geromel <i>et al.</i>, “Compact Metasurface-Based Optical Pulse-Shaping
    Device,” <i>Nano Letters</i>, vol. 23, no. 8, pp. 3196–3201, 2023, doi: <a href="https://doi.org/10.1021/acs.nanolett.2c04980">10.1021/acs.nanolett.2c04980</a>.'
  mla: Geromel, René, et al. “Compact Metasurface-Based Optical Pulse-Shaping Device.”
    <i>Nano Letters</i>, vol. 23, no. 8, American Chemical Society (ACS), 2023, pp.
    3196–201, doi:<a href="https://doi.org/10.1021/acs.nanolett.2c04980">10.1021/acs.nanolett.2c04980</a>.
  short: R. Geromel, P. Georgi, M. Protte, S. Lei, T. Bartley, L. Huang, T. Zentgraf,
    Nano Letters 23 (2023) 3196–3201.
date_created: 2023-04-18T05:47:22Z
date_updated: 2023-05-12T11:17:51Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1021/acs.nanolett.2c04980
file:
- access_level: closed
  content_type: application/pdf
  creator: zentgraf
  date_created: 2023-04-18T05:50:19Z
  date_updated: 2023-04-18T05:50:19Z
  file_id: '44045'
  file_name: acs.nanolett.2c04980.pdf
  file_size: 1315966
  relation: main_file
  success: 1
file_date_updated: 2023-04-18T05:50:19Z
funded_apc: '1'
has_accepted_license: '1'
intvolume: '        23'
issue: '8'
keyword:
- Mechanical Engineering
- Condensed Matter Physics
- General Materials Science
- General Chemistry
- Bioengineering
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://pubs.acs.org/doi/full/10.1021/acs.nanolett.2c04980
oa: '1'
page: 3196 - 3201
project:
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '55'
  name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
  name: 'TRR 142 - B09: TRR 142 - Subproject B09'
- _id: '171'
  name: 'TRR 142 - C07: TRR 142 - Subproject C07'
- _id: '56'
  name: 'TRR 142 - C: TRR 142 - Project Area C'
publication: Nano Letters
publication_identifier:
  issn:
  - 1530-6984
  - 1530-6992
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Compact Metasurface-Based Optical Pulse-Shaping Device
type: journal_article
user_id: '30525'
volume: 23
year: '2023'
...
---
_id: '46485'
abstract:
- lang: eng
  text: We present a miniaturized pulse shaping device that creates an arbitrary dispersion
    through the interaction of multiple metasurfaces on less than 2 mm<jats:sup>3</jats:sup>
    volume. For this, a metalens and a grating-metasurface between two silver mirrors
    are fabricated. The grating contains further phase information to achieve the
    device's pulse shaping functionality.
article_number: FTh4D.3
author:
- first_name: René
  full_name: Geromel, René
  last_name: Geromel
- first_name: Philip
  full_name: Georgi, Philip
  last_name: Georgi
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
- 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: 'Geromel R, Georgi P, Protte M, Bartley T, Huang L, Zentgraf T. Dispersion
    control with integrated plasmonic metasurfaces. In: <i>CLEO: Fundamental Science
    2023</i>. Technical Digest Series. Optica Publishing Group; 2023. doi:<a href="https://doi.org/10.1364/cleo_fs.2023.fth4d.3">10.1364/cleo_fs.2023.fth4d.3</a>'
  apa: 'Geromel, R., Georgi, P., Protte, M., Bartley, T., Huang, L., &#38; Zentgraf,
    T. (2023). Dispersion control with integrated plasmonic metasurfaces. <i>CLEO:
    Fundamental Science 2023</i>, Article FTh4D.3. CLEO: Fundamental Science 2023,
    San Jose, USA. <a href="https://doi.org/10.1364/cleo_fs.2023.fth4d.3">https://doi.org/10.1364/cleo_fs.2023.fth4d.3</a>'
  bibtex: '@inproceedings{Geromel_Georgi_Protte_Bartley_Huang_Zentgraf_2023, series={Technical
    Digest Series}, title={Dispersion control with integrated plasmonic metasurfaces},
    DOI={<a href="https://doi.org/10.1364/cleo_fs.2023.fth4d.3">10.1364/cleo_fs.2023.fth4d.3</a>},
    number={FTh4D.3}, booktitle={CLEO: Fundamental Science 2023}, publisher={Optica
    Publishing Group}, author={Geromel, René and Georgi, Philip and Protte, Maximilian
    and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}, year={2023}, collection={Technical
    Digest Series} }'
  chicago: 'Geromel, René, Philip Georgi, Maximilian Protte, Tim Bartley, Lingling
    Huang, and Thomas Zentgraf. “Dispersion Control with Integrated Plasmonic Metasurfaces.”
    In <i>CLEO: Fundamental Science 2023</i>. Technical Digest Series. Optica Publishing
    Group, 2023. <a href="https://doi.org/10.1364/cleo_fs.2023.fth4d.3">https://doi.org/10.1364/cleo_fs.2023.fth4d.3</a>.'
  ieee: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, and T. Zentgraf,
    “Dispersion control with integrated plasmonic metasurfaces,” presented at the
    CLEO: Fundamental Science 2023, San Jose, USA, 2023, doi: <a href="https://doi.org/10.1364/cleo_fs.2023.fth4d.3">10.1364/cleo_fs.2023.fth4d.3</a>.'
  mla: 'Geromel, René, et al. “Dispersion Control with Integrated Plasmonic Metasurfaces.”
    <i>CLEO: Fundamental Science 2023</i>, FTh4D.3, Optica Publishing Group, 2023,
    doi:<a href="https://doi.org/10.1364/cleo_fs.2023.fth4d.3">10.1364/cleo_fs.2023.fth4d.3</a>.'
  short: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, T. Zentgraf, in:
    CLEO: Fundamental Science 2023, Optica Publishing Group, 2023.'
conference:
  end_date: 2023-05-12
  location: San Jose, USA
  name: 'CLEO: Fundamental Science 2023'
  start_date: 2023-05-07
date_created: 2023-08-14T08:19:22Z
date_updated: 2023-08-14T08:22:31Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1364/cleo_fs.2023.fth4d.3
language:
- iso: eng
project:
- _id: '53'
  grant_number: '231447078'
  name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
    Konzepten zu funktionellen Strukturen'
- _id: '55'
  name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
  grant_number: '231447078'
  name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer
    Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen
    (B09*)'
publication: 'CLEO: Fundamental Science 2023'
publication_status: published
publisher: Optica Publishing Group
series_title: Technical Digest Series
status: public
title: Dispersion control with integrated plasmonic metasurfaces
type: conference
user_id: '30525'
year: '2023'
...
---
_id: '46468'
article_number: '023701'
author:
- first_name: Nina Amelie
  full_name: Lange, Nina Amelie
  id: '56843'
  last_name: Lange
  orcid: 0000-0001-6624-7098
- first_name: Timon
  full_name: Schapeler, Timon
  id: '55629'
  last_name: Schapeler
  orcid: 0000-0001-7652-1716
- first_name: Jan Philipp
  full_name: Höpker, Jan Philipp
  id: '33913'
  last_name: Höpker
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: Lange NA, Schapeler T, Höpker JP, Protte M, Bartley T. Degenerate photons from
    a cryogenic spontaneous parametric down-conversion source. <i>Physical Review
    A</i>. 2023;108(2). doi:<a href="https://doi.org/10.1103/physreva.108.023701">10.1103/physreva.108.023701</a>
  apa: Lange, N. A., Schapeler, T., Höpker, J. P., Protte, M., &#38; Bartley, T. (2023).
    Degenerate photons from a cryogenic spontaneous parametric down-conversion source.
    <i>Physical Review A</i>, <i>108</i>(2), Article 023701. <a href="https://doi.org/10.1103/physreva.108.023701">https://doi.org/10.1103/physreva.108.023701</a>
  bibtex: '@article{Lange_Schapeler_Höpker_Protte_Bartley_2023, title={Degenerate
    photons from a cryogenic spontaneous parametric down-conversion source}, volume={108},
    DOI={<a href="https://doi.org/10.1103/physreva.108.023701">10.1103/physreva.108.023701</a>},
    number={2023701}, journal={Physical Review A}, publisher={American Physical Society
    (APS)}, author={Lange, Nina Amelie and Schapeler, Timon and Höpker, Jan Philipp
    and Protte, Maximilian and Bartley, Tim}, year={2023} }'
  chicago: Lange, Nina Amelie, Timon Schapeler, Jan Philipp Höpker, Maximilian Protte,
    and Tim Bartley. “Degenerate Photons from a Cryogenic Spontaneous Parametric Down-Conversion
    Source.” <i>Physical Review A</i> 108, no. 2 (2023). <a href="https://doi.org/10.1103/physreva.108.023701">https://doi.org/10.1103/physreva.108.023701</a>.
  ieee: 'N. A. Lange, T. Schapeler, J. P. Höpker, M. Protte, and T. Bartley, “Degenerate
    photons from a cryogenic spontaneous parametric down-conversion source,” <i>Physical
    Review A</i>, vol. 108, no. 2, Art. no. 023701, 2023, doi: <a href="https://doi.org/10.1103/physreva.108.023701">10.1103/physreva.108.023701</a>.'
  mla: Lange, Nina Amelie, et al. “Degenerate Photons from a Cryogenic Spontaneous
    Parametric Down-Conversion Source.” <i>Physical Review A</i>, vol. 108, no. 2,
    023701, American Physical Society (APS), 2023, doi:<a href="https://doi.org/10.1103/physreva.108.023701">10.1103/physreva.108.023701</a>.
  short: N.A. Lange, T. Schapeler, J.P. Höpker, M. Protte, T. Bartley, Physical Review
    A 108 (2023).
date_created: 2023-08-10T07:34:54Z
date_updated: 2025-12-15T09:24:16Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
doi: 10.1103/physreva.108.023701
intvolume: '       108'
issue: '2'
language:
- iso: eng
project:
- _id: '171'
  name: 'TRR 142; TP C07: Hohlraum-verstärkte Parametrische Fluoreszenz mit zeitlicher
    Filterung unter Verwendung integrierter supraleitender Detektoren'
publication: Physical Review A
publication_identifier:
  issn:
  - 2469-9926
  - 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Degenerate photons from a cryogenic spontaneous parametric down-conversion
  source
type: journal_article
user_id: '56843'
volume: 108
year: '2023'
...
---
_id: '33671'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n               <jats:p>We demonstrate
    the fabrication of micron-wide tungsten silicide superconducting nanowire single-photon
    detectors on a silicon substrate using laser lithography. We show saturated internal
    detection efficiencies with wire widths ranging from 0.59 <jats:italic>µ</jats:italic>m
    to 1.43 <jats:italic>µ</jats:italic>m under illumination at 1550 nm. We demonstrate
    both straight wires, as well as meandered structures. Single-photon sensitivity
    is shown in devices up to 4 mm in length. Laser-lithographically written devices
    allow for fast and easy structuring of large areas while maintaining a saturated
    internal efficiency for wire widths around 1 <jats:italic>µ</jats:italic>m.</jats:p>"
article_number: '055005'
author:
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Varun B
  full_name: Verma, Varun B
  last_name: Verma
- first_name: Jan Philipp
  full_name: Höpker, Jan Philipp
  id: '33913'
  last_name: Höpker
- first_name: Richard P
  full_name: Mirin, Richard P
  last_name: Mirin
- first_name: Sae
  full_name: Woo Nam, Sae
  last_name: Woo Nam
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: Protte M, Verma VB, Höpker JP, Mirin RP, Woo Nam S, Bartley T. Laser-lithographically
    written micron-wide superconducting nanowire single-photon detectors. <i>Superconductor
    Science and Technology</i>. 2022;35(5). doi:<a href="https://doi.org/10.1088/1361-6668/ac5338">10.1088/1361-6668/ac5338</a>
  apa: Protte, M., Verma, V. B., Höpker, J. P., Mirin, R. P., Woo Nam, S., &#38; Bartley,
    T. (2022). Laser-lithographically written micron-wide superconducting nanowire
    single-photon detectors. <i>Superconductor Science and Technology</i>, <i>35</i>(5),
    Article 055005. <a href="https://doi.org/10.1088/1361-6668/ac5338">https://doi.org/10.1088/1361-6668/ac5338</a>
  bibtex: '@article{Protte_Verma_Höpker_Mirin_Woo Nam_Bartley_2022, title={Laser-lithographically
    written micron-wide superconducting nanowire single-photon detectors}, volume={35},
    DOI={<a href="https://doi.org/10.1088/1361-6668/ac5338">10.1088/1361-6668/ac5338</a>},
    number={5055005}, journal={Superconductor Science and Technology}, publisher={IOP
    Publishing}, author={Protte, Maximilian and Verma, Varun B and Höpker, Jan Philipp
    and Mirin, Richard P and Woo Nam, Sae and Bartley, Tim}, year={2022} }'
  chicago: Protte, Maximilian, Varun B Verma, Jan Philipp Höpker, Richard P Mirin,
    Sae Woo Nam, and Tim Bartley. “Laser-Lithographically Written Micron-Wide Superconducting
    Nanowire Single-Photon Detectors.” <i>Superconductor Science and Technology</i>
    35, no. 5 (2022). <a href="https://doi.org/10.1088/1361-6668/ac5338">https://doi.org/10.1088/1361-6668/ac5338</a>.
  ieee: 'M. Protte, V. B. Verma, J. P. Höpker, R. P. Mirin, S. Woo Nam, and T. Bartley,
    “Laser-lithographically written micron-wide superconducting nanowire single-photon
    detectors,” <i>Superconductor Science and Technology</i>, vol. 35, no. 5, Art.
    no. 055005, 2022, doi: <a href="https://doi.org/10.1088/1361-6668/ac5338">10.1088/1361-6668/ac5338</a>.'
  mla: Protte, Maximilian, et al. “Laser-Lithographically Written Micron-Wide Superconducting
    Nanowire Single-Photon Detectors.” <i>Superconductor Science and Technology</i>,
    vol. 35, no. 5, 055005, IOP Publishing, 2022, doi:<a href="https://doi.org/10.1088/1361-6668/ac5338">10.1088/1361-6668/ac5338</a>.
  short: M. Protte, V.B. Verma, J.P. Höpker, R.P. Mirin, S. Woo Nam, T. Bartley, Superconductor
    Science and Technology 35 (2022).
date_created: 2022-10-11T07:14:11Z
date_updated: 2023-01-12T13:02:52Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
doi: 10.1088/1361-6668/ac5338
intvolume: '        35'
issue: '5'
keyword:
- Materials Chemistry
- Electrical and Electronic Engineering
- Metals and Alloys
- Condensed Matter Physics
- Ceramics and Composites
language:
- iso: eng
publication: Superconductor Science and Technology
publication_identifier:
  issn:
  - 0953-2048
  - 1361-6668
publication_status: published
publisher: IOP Publishing
status: public
title: Laser-lithographically written micron-wide superconducting nanowire single-photon
  detectors
type: journal_article
user_id: '33913'
volume: 35
year: '2022'
...
---
_id: '33672'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n               <jats:p>Lithium niobate
    is a promising platform for integrated quantum optics. In this platform, we aim
    to efficiently manipulate and detect quantum states by combining superconducting
    single photon detectors and modulators. The cryogenic operation of a superconducting
    single photon detector dictates the optimisation of the electro-optic modulators
    under the same operating conditions. To that end, we characterise a phase modulator,
    directional coupler, and polarisation converter at both ambient and cryogenic
    temperatures. The operation voltage <jats:inline-formula>\r\n                     <jats:tex-math><?CDATA
    $V_{\\pi/2}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"
    overflow=\"scroll\">\r\n                        <mml:msub>\r\n                           <mml:mi>V</mml:mi>\r\n
    \                          <mml:mrow>\r\n                              <mml:mi>π</mml:mi>\r\n
    \                             <mml:mrow>\r\n                                 <mml:mo>/</mml:mo>\r\n
    \                             </mml:mrow>\r\n                              <mml:mn>2</mml:mn>\r\n
    \                          </mml:mrow>\r\n                        </mml:msub>\r\n
    \                    </mml:math>\r\n                     <jats:inline-graphic
    xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"jpphotonac6c63ieqn1.gif\"
    xlink:type=\"simple\" />\r\n                  </jats:inline-formula> of these
    modulators increases, due to the decrease in the electro-optic effect, by 74%
    for the phase modulator, 84% for the directional coupler and 35% for the polarisation
    converter below 8.5<jats:inline-formula>\r\n                     <jats:tex-math><?CDATA
    $\\,\\mathrm{K}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"
    overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi
    mathvariant=\"normal\">K</mml:mi>\r\n                        </mml:mrow>\r\n                     </mml:math>\r\n
    \                    <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\"
    xlink:href=\"jpphotonac6c63ieqn2.gif\" xlink:type=\"simple\" />\r\n                  </jats:inline-formula>.
    The phase modulator preserves its broadband nature and modulates light in the
    characterised wavelength range. The unbiased bar state of the directional coupler
    changed by a wavelength shift of 85<jats:inline-formula>\r\n                     <jats:tex-math><?CDATA
    $\\,\\mathrm{nm}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"
    overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi
    mathvariant=\"normal\">n</mml:mi>\r\n                           <mml:mi mathvariant=\"normal\">m</mml:mi>\r\n
    \                       </mml:mrow>\r\n                     </mml:math>\r\n                     <jats:inline-graphic
    xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"jpphotonac6c63ieqn3.gif\"
    xlink:type=\"simple\" />\r\n                  </jats:inline-formula> while cooling
    the device down to 5<jats:inline-formula>\r\n                     <jats:tex-math><?CDATA
    $\\,\\mathrm{K}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"
    overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi
    mathvariant=\"normal\">K</mml:mi>\r\n                        </mml:mrow>\r\n                     </mml:math>\r\n
    \                    <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\"
    xlink:href=\"jpphotonac6c63ieqn4.gif\" xlink:type=\"simple\" />\r\n                  </jats:inline-formula>.
    The polarisation converter uses periodic poling to phasematch the two orthogonal
    polarisations. The phasematched wavelength of the utilised poling changes by 112<jats:inline-formula>\r\n
    \                    <jats:tex-math><?CDATA $\\,\\mathrm{nm}$?></jats:tex-math>\r\n
    \                    <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"
    overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi
    mathvariant=\"normal\">n</mml:mi>\r\n                           <mml:mi mathvariant=\"normal\">m</mml:mi>\r\n
    \                       </mml:mrow>\r\n                     </mml:math>\r\n                     <jats:inline-graphic
    xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"jpphotonac6c63ieqn5.gif\"
    xlink:type=\"simple\" />\r\n                  </jats:inline-formula> when cooling
    to 5<jats:inline-formula>\r\n                     <jats:tex-math><?CDATA $\\,\\mathrm{K}$?></jats:tex-math>\r\n
    \                    <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"
    overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi
    mathvariant=\"normal\">K</mml:mi>\r\n                        </mml:mrow>\r\n                     </mml:math>\r\n
    \                    <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\"
    xlink:href=\"jpphotonac6c63ieqn6.gif\" xlink:type=\"simple\" />\r\n                  </jats:inline-formula>.</jats:p>"
article_number: '034004'
author:
- first_name: Frederik
  full_name: Thiele, Frederik
  id: '50819'
  last_name: Thiele
  orcid: 0000-0003-0663-5587
- first_name: Felix
  full_name: vom Bruch, Felix
  id: '71245'
  last_name: vom Bruch
- first_name: Julian
  full_name: Brockmeier, Julian
  id: '44807'
  last_name: Brockmeier
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Thomas
  full_name: Hummel, Thomas
  id: '83846'
  last_name: Hummel
- first_name: Raimund
  full_name: Ricken, Raimund
  last_name: Ricken
- first_name: Viktor
  full_name: Quiring, Viktor
  last_name: Quiring
- first_name: Sebastian
  full_name: Lengeling, Sebastian
  id: '44373'
  last_name: Lengeling
- first_name: Harald
  full_name: Herrmann, Harald
  id: '216'
  last_name: Herrmann
- first_name: Christof
  full_name: Eigner, Christof
  id: '13244'
  last_name: Eigner
  orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: 'Thiele F, vom Bruch F, Brockmeier J, et al. Cryogenic electro-optic modulation
    in titanium in-diffused lithium niobate waveguides. <i>Journal of Physics: Photonics</i>.
    2022;4(3). doi:<a href="https://doi.org/10.1088/2515-7647/ac6c63">10.1088/2515-7647/ac6c63</a>'
  apa: 'Thiele, F., vom Bruch, F., Brockmeier, J., Protte, M., Hummel, T., Ricken,
    R., Quiring, V., Lengeling, S., Herrmann, H., Eigner, C., Silberhorn, C., &#38;
    Bartley, T. (2022). Cryogenic electro-optic modulation in titanium in-diffused
    lithium niobate waveguides. <i>Journal of Physics: Photonics</i>, <i>4</i>(3),
    Article 034004. <a href="https://doi.org/10.1088/2515-7647/ac6c63">https://doi.org/10.1088/2515-7647/ac6c63</a>'
  bibtex: '@article{Thiele_vom Bruch_Brockmeier_Protte_Hummel_Ricken_Quiring_Lengeling_Herrmann_Eigner_et
    al._2022, title={Cryogenic electro-optic modulation in titanium in-diffused lithium
    niobate waveguides}, volume={4}, DOI={<a href="https://doi.org/10.1088/2515-7647/ac6c63">10.1088/2515-7647/ac6c63</a>},
    number={3034004}, journal={Journal of Physics: Photonics}, publisher={IOP Publishing},
    author={Thiele, Frederik and vom Bruch, Felix and Brockmeier, Julian and Protte,
    Maximilian and Hummel, Thomas and Ricken, Raimund and Quiring, Viktor and Lengeling,
    Sebastian and Herrmann, Harald and Eigner, Christof and et al.}, year={2022} }'
  chicago: 'Thiele, Frederik, Felix vom Bruch, Julian Brockmeier, Maximilian Protte,
    Thomas Hummel, Raimund Ricken, Viktor Quiring, et al. “Cryogenic Electro-Optic
    Modulation in Titanium in-Diffused Lithium Niobate Waveguides.” <i>Journal of
    Physics: Photonics</i> 4, no. 3 (2022). <a href="https://doi.org/10.1088/2515-7647/ac6c63">https://doi.org/10.1088/2515-7647/ac6c63</a>.'
  ieee: 'F. Thiele <i>et al.</i>, “Cryogenic electro-optic modulation in titanium
    in-diffused lithium niobate waveguides,” <i>Journal of Physics: Photonics</i>,
    vol. 4, no. 3, Art. no. 034004, 2022, doi: <a href="https://doi.org/10.1088/2515-7647/ac6c63">10.1088/2515-7647/ac6c63</a>.'
  mla: 'Thiele, Frederik, et al. “Cryogenic Electro-Optic Modulation in Titanium in-Diffused
    Lithium Niobate Waveguides.” <i>Journal of Physics: Photonics</i>, vol. 4, no.
    3, 034004, IOP Publishing, 2022, doi:<a href="https://doi.org/10.1088/2515-7647/ac6c63">10.1088/2515-7647/ac6c63</a>.'
  short: 'F. Thiele, F. vom Bruch, J. Brockmeier, M. Protte, T. Hummel, R. Ricken,
    V. Quiring, S. Lengeling, H. Herrmann, C. Eigner, C. Silberhorn, T. Bartley, Journal
    of Physics: Photonics 4 (2022).'
date_created: 2022-10-11T07:14:40Z
date_updated: 2023-01-12T15:16:35Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
doi: 10.1088/2515-7647/ac6c63
intvolume: '         4'
issue: '3'
keyword:
- Electrical and Electronic Engineering
- Atomic and Molecular Physics
- and Optics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
publication: 'Journal of Physics: Photonics'
publication_identifier:
  issn:
  - 2515-7647
publication_status: published
publisher: IOP Publishing
status: public
title: Cryogenic electro-optic modulation in titanium in-diffused lithium niobate
  waveguides
type: journal_article
user_id: '83846'
volume: 4
year: '2022'
...
---
_id: '33673'
abstract:
- lang: eng
  text: <jats:p> Superconducting Nanowire Single Photon Detectors (SNSPDs) have become
    an integral part of quantum optics in recent years because of their high performance
    in single photon detection. We present a method to replace the electrical input
    by supplying the required bias current via the photocurrent of a photodiode situated
    on the cold stage of the cryostat. Light is guided to the bias photodiode through
    an optical fiber, which enables a lower thermal conduction and galvanic isolation
    between room temperature and the cold stage. We show that an off-the-shelf InGaAs–InP
    photodiode exhibits a responsivity of at least 0.55 A/W at 0.8 K. Using this device
    to bias an SNSPD, we characterize the count rate dependent on the optical power
    incident on the photodiode. This configuration of the SNSPD and photodiode shows
    an expected plateau in the single photon count rate with an optical bias power
    on the photodiode above 6.8 µW. Furthermore, we compare the same detector under
    both optical and electrical bias, and show there is no significant changes in
    performance. This has the advantage of avoiding an electrical input cable, which
    reduces the latent heat load by a factor of 100 and, in principle, allows for
    low loss RF current supply at the cold stage. </jats:p>
article_number: '081303'
author:
- first_name: Frederik
  full_name: Thiele, Frederik
  id: '50819'
  last_name: Thiele
  orcid: 0000-0003-0663-5587
- first_name: Thomas
  full_name: Hummel, Thomas
  id: '83846'
  last_name: Hummel
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: Thiele F, Hummel T, Protte M, Bartley T. Opto-electronic bias of a superconducting
    nanowire single photon detector using a cryogenic photodiode. <i>APL Photonics</i>.
    2022;7(8). doi:<a href="https://doi.org/10.1063/5.0097506">10.1063/5.0097506</a>
  apa: Thiele, F., Hummel, T., Protte, M., &#38; Bartley, T. (2022). Opto-electronic
    bias of a superconducting nanowire single photon detector using a cryogenic photodiode.
    <i>APL Photonics</i>, <i>7</i>(8), Article 081303. <a href="https://doi.org/10.1063/5.0097506">https://doi.org/10.1063/5.0097506</a>
  bibtex: '@article{Thiele_Hummel_Protte_Bartley_2022, title={Opto-electronic bias
    of a superconducting nanowire single photon detector using a cryogenic photodiode},
    volume={7}, DOI={<a href="https://doi.org/10.1063/5.0097506">10.1063/5.0097506</a>},
    number={8081303}, journal={APL Photonics}, publisher={AIP Publishing}, author={Thiele,
    Frederik and Hummel, Thomas and Protte, Maximilian and Bartley, Tim}, year={2022}
    }'
  chicago: Thiele, Frederik, Thomas Hummel, Maximilian Protte, and Tim Bartley. “Opto-Electronic
    Bias of a Superconducting Nanowire Single Photon Detector Using a Cryogenic Photodiode.”
    <i>APL Photonics</i> 7, no. 8 (2022). <a href="https://doi.org/10.1063/5.0097506">https://doi.org/10.1063/5.0097506</a>.
  ieee: 'F. Thiele, T. Hummel, M. Protte, and T. Bartley, “Opto-electronic bias of
    a superconducting nanowire single photon detector using a cryogenic photodiode,”
    <i>APL Photonics</i>, vol. 7, no. 8, Art. no. 081303, 2022, doi: <a href="https://doi.org/10.1063/5.0097506">10.1063/5.0097506</a>.'
  mla: Thiele, Frederik, et al. “Opto-Electronic Bias of a Superconducting Nanowire
    Single Photon Detector Using a Cryogenic Photodiode.” <i>APL Photonics</i>, vol.
    7, no. 8, 081303, AIP Publishing, 2022, doi:<a href="https://doi.org/10.1063/5.0097506">10.1063/5.0097506</a>.
  short: F. Thiele, T. Hummel, M. Protte, T. Bartley, APL Photonics 7 (2022).
date_created: 2022-10-11T07:15:09Z
date_updated: 2023-01-12T15:13:40Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
doi: 10.1063/5.0097506
intvolume: '         7'
issue: '8'
keyword:
- Computer Networks and Communications
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: APL Photonics
publication_identifier:
  issn:
  - 2378-0967
publication_status: published
publisher: AIP Publishing
status: public
title: Opto-electronic bias of a superconducting nanowire single photon detector using
  a cryogenic photodiode
type: journal_article
user_id: '83846'
volume: 7
year: '2022'
...
---
_id: '43744'
abstract:
- lang: eng
  text: We demonstrate theoretically and experimentally complex correlations in the
    photon numbers of two-mode quantum states using measurement-induced nonlinearity.
    For this, we combine the interference of coherent states and single photons with
    photon sub-traction.
author:
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Jan Philipp
  full_name: Hoepker, Jan Philipp
  last_name: Hoepker
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Christof
  full_name: Eigner, Christof
  id: '13244'
  last_name: Eigner
  orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Polina R.
  full_name: Sharapova, Polina R.
  id: '60286'
  last_name: Sharapova
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: 'Meier T, Hoepker JP, Protte M, et al. Two-Mode Photon-Number Correlations
    Created by Measurement-Induced Nonlinearity. In: <i>Conference on Lasers and Electro-Optics:
    Applications and Technology</i>. Optica Publishing Group; 2022:JTu3A. 17. doi:<a
    href="https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17">10.1364/CLEO_AT.2022.JTu3A.17</a>'
  apa: 'Meier, T., Hoepker, J. P., Protte, M., Eigner, C., Silberhorn, C., Sharapova,
    P. R., Sperling, J., &#38; Bartley, T. (2022). Two-Mode Photon-Number Correlations
    Created by Measurement-Induced Nonlinearity. <i>Conference on Lasers and Electro-Optics:
    Applications and Technology</i>, JTu3A. 17. <a href="https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17">https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17</a>'
  bibtex: '@inproceedings{Meier_Hoepker_Protte_Eigner_Silberhorn_Sharapova_Sperling_Bartley_2022,
    title={Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity},
    DOI={<a href="https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17">10.1364/CLEO_AT.2022.JTu3A.17</a>},
    booktitle={Conference on Lasers and Electro-Optics: Applications and Technology},
    publisher={Optica Publishing Group}, author={Meier, Torsten and Hoepker, Jan Philipp
    and Protte, Maximilian and Eigner, Christof and Silberhorn, Christine and Sharapova,
    Polina R. and Sperling, Jan and Bartley, Tim}, year={2022}, pages={JTu3A. 17}
    }'
  chicago: 'Meier, Torsten, Jan Philipp Hoepker, Maximilian Protte, Christof Eigner,
    Christine Silberhorn, Polina R. Sharapova, Jan Sperling, and Tim Bartley. “Two-Mode
    Photon-Number Correlations Created by Measurement-Induced Nonlinearity.” In <i>Conference
    on Lasers and Electro-Optics: Applications and Technology</i>, JTu3A. 17. Optica
    Publishing Group, 2022. <a href="https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17">https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17</a>.'
  ieee: 'T. Meier <i>et al.</i>, “Two-Mode Photon-Number Correlations Created by Measurement-Induced
    Nonlinearity,” in <i>Conference on Lasers and Electro-Optics: Applications and
    Technology</i>, San Jose, California United States, 2022, p. JTu3A. 17, doi: <a
    href="https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17">10.1364/CLEO_AT.2022.JTu3A.17</a>.'
  mla: 'Meier, Torsten, et al. “Two-Mode Photon-Number Correlations Created by Measurement-Induced
    Nonlinearity.” <i>Conference on Lasers and Electro-Optics: Applications and Technology</i>,
    Optica Publishing Group, 2022, p. JTu3A. 17, doi:<a href="https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17">10.1364/CLEO_AT.2022.JTu3A.17</a>.'
  short: 'T. Meier, J.P. Hoepker, M. Protte, C. Eigner, C. Silberhorn, P.R. Sharapova,
    J. Sperling, T. Bartley, in: Conference on Lasers and Electro-Optics: Applications
    and Technology, Optica Publishing Group, 2022, p. JTu3A. 17.'
conference:
  end_date: 2022-05-20
  location: San Jose, California United States
  name: 'CLEO: Applications and Technology 2022'
  start_date: 2022-05-15
date_created: 2023-04-16T01:31:32Z
date_updated: 2023-04-21T11:10:06Z
department:
- _id: '293'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '482'
- _id: '706'
- _id: '288'
doi: 10.1364/CLEO_AT.2022.JTu3A.17
language:
- iso: eng
main_file_link:
- url: https://opg.optica.org/abstract.cfm?uri=CLEO_AT-2022-JTu3A.17
page: JTu3A. 17
publication: 'Conference on Lasers and Electro-Optics: Applications and Technology'
publication_identifier:
  isbn:
  - 978-1-957171-05-0
publication_status: published
publisher: Optica Publishing Group
status: public
title: Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity
type: conference
user_id: '16199'
year: '2022'
...
---
_id: '23728'
abstract:
- lang: eng
  text: We demonstrate the integration of amorphous tungsten silicide superconducting
    nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides.
    We show proof-of-principle detection of evanescently coupled photons of 1550 nm
    wavelength using bidirectional waveguide coupling for two orthogonal polarization
    directions. We investigate the internal detection efficiency as well as detector
    absorption using coupling-independent characterization measurements. Furthermore,
    we describe strategies to improve the yield and efficiency of these devices.
article_type: original
author:
- first_name: Jan Philipp
  full_name: Höpker, Jan Philipp
  id: '33913'
  last_name: Höpker
- first_name: Varun B
  full_name: Verma, Varun B
  last_name: Verma
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Raimund
  full_name: Ricken, Raimund
  last_name: Ricken
- first_name: Viktor
  full_name: Quiring, Viktor
  last_name: Quiring
- first_name: Christof
  full_name: Eigner, Christof
  id: '13244'
  last_name: Eigner
  orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Lena
  full_name: Ebers, Lena
  id: '40428'
  last_name: Ebers
- first_name: Manfred
  full_name: Hammer, Manfred
  id: '48077'
  last_name: Hammer
  orcid: 0000-0002-6331-9348
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Richard P
  full_name: Mirin, Richard P
  last_name: Mirin
- first_name: Sae
  full_name: Woo Nam, Sae
  last_name: Woo Nam
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: 'Höpker JP, Verma VB, Protte M, et al. Integrated superconducting nanowire
    single-photon detectors on titanium in-diffused lithium niobate waveguides. <i>Journal
    of Physics: Photonics</i>. 2021;3:034022. doi:<a href="https://doi.org/10.1088/2515-7647/ac105b">10.1088/2515-7647/ac105b</a>'
  apa: 'Höpker, J. P., Verma, V. B., Protte, M., Ricken, R., Quiring, V., Eigner,
    C., Ebers, L., Hammer, M., Förstner, J., Silberhorn, C., Mirin, R. P., Woo Nam,
    S., &#38; Bartley, T. (2021). Integrated superconducting nanowire single-photon
    detectors on titanium in-diffused lithium niobate waveguides. <i>Journal of Physics:
    Photonics</i>, <i>3</i>, 034022. <a href="https://doi.org/10.1088/2515-7647/ac105b">https://doi.org/10.1088/2515-7647/ac105b</a>'
  bibtex: '@article{Höpker_Verma_Protte_Ricken_Quiring_Eigner_Ebers_Hammer_Förstner_Silberhorn_et
    al._2021, title={Integrated superconducting nanowire single-photon detectors on
    titanium in-diffused lithium niobate waveguides}, volume={3}, DOI={<a href="https://doi.org/10.1088/2515-7647/ac105b">10.1088/2515-7647/ac105b</a>},
    journal={Journal of Physics: Photonics}, author={Höpker, Jan Philipp and Verma,
    Varun B and Protte, Maximilian and Ricken, Raimund and Quiring, Viktor and Eigner,
    Christof and Ebers, Lena and Hammer, Manfred and Förstner, Jens and Silberhorn,
    Christine and et al.}, year={2021}, pages={034022} }'
  chicago: 'Höpker, Jan Philipp, Varun B Verma, Maximilian Protte, Raimund Ricken,
    Viktor Quiring, Christof Eigner, Lena Ebers, et al. “Integrated Superconducting
    Nanowire Single-Photon Detectors on Titanium in-Diffused Lithium Niobate Waveguides.”
    <i>Journal of Physics: Photonics</i> 3 (2021): 034022. <a href="https://doi.org/10.1088/2515-7647/ac105b">https://doi.org/10.1088/2515-7647/ac105b</a>.'
  ieee: 'J. P. Höpker <i>et al.</i>, “Integrated superconducting nanowire single-photon
    detectors on titanium in-diffused lithium niobate waveguides,” <i>Journal of Physics:
    Photonics</i>, vol. 3, p. 034022, 2021, doi: <a href="https://doi.org/10.1088/2515-7647/ac105b">10.1088/2515-7647/ac105b</a>.'
  mla: 'Höpker, Jan Philipp, et al. “Integrated Superconducting Nanowire Single-Photon
    Detectors on Titanium in-Diffused Lithium Niobate Waveguides.” <i>Journal of Physics:
    Photonics</i>, vol. 3, 2021, p. 034022, doi:<a href="https://doi.org/10.1088/2515-7647/ac105b">10.1088/2515-7647/ac105b</a>.'
  short: 'J.P. Höpker, V.B. Verma, M. Protte, R. Ricken, V. Quiring, C. Eigner, L.
    Ebers, M. Hammer, J. Förstner, C. Silberhorn, R.P. Mirin, S. Woo Nam, T. Bartley,
    Journal of Physics: Photonics 3 (2021) 034022.'
date_created: 2021-09-03T08:04:06Z
date_updated: 2022-10-25T07:34:42Z
ddc:
- '530'
department:
- _id: '15'
- _id: '61'
- _id: '230'
doi: 10.1088/2515-7647/ac105b
file:
- access_level: open_access
  content_type: application/pdf
  creator: fossie
  date_created: 2021-09-07T07:41:04Z
  date_updated: 2021-09-07T07:41:04Z
  file_id: '23825'
  file_name: 2021-07 Höpker J._Phys._Photonics_3_034022.pdf
  file_size: 1097820
  relation: main_file
file_date_updated: 2021-09-07T07:41:04Z
has_accepted_license: '1'
intvolume: '         3'
language:
- iso: eng
oa: '1'
page: '034022'
project:
- _id: '53'
  name: TRR 142
publication: 'Journal of Physics: Photonics'
publication_identifier:
  issn:
  - 2515-7647
publication_status: published
status: public
title: Integrated superconducting nanowire single-photon detectors on titanium in-diffused
  lithium niobate waveguides
type: journal_article
user_id: '49683'
volume: 3
year: '2021'
...
---
_id: '21719'
abstract:
- lang: eng
  text: We fabricate silicon tapers to increase the mode overlap of superconducting
    detectors on Ti:LiNbO3 waveguides. Mode images show a reduction in mode size from
    6 µm to 2 µm FWHM, agreeing with beam propagation simulations.
article_number: QTh7A.8
author:
- first_name: Maximilian
  full_name: Protte, Maximilian
  id: '46170'
  last_name: Protte
- first_name: Lena
  full_name: Ebers, Lena
  id: '40428'
  last_name: Ebers
- first_name: Manfred
  full_name: Hammer, Manfred
  id: '48077'
  last_name: Hammer
  orcid: 0000-0002-6331-9348
- first_name: Jan Philipp
  full_name: Höpker, Jan Philipp
  id: '33913'
  last_name: Höpker
- first_name: Maximilian
  full_name: Albert, Maximilian
  last_name: Albert
- first_name: Viktor
  full_name: Quiring, Viktor
  last_name: Quiring
- 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: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: 'Protte M, Ebers L, Hammer M, et al. Towards Semiconductor-Superconductor-Crystal
    Hybrid Integration for Quantum Photonics. In: <i>OSA Quantum 2.0 Conference</i>.
    ; 2020. doi:<a href="https://doi.org/10.1364/quantum.2020.qth7a.8">10.1364/quantum.2020.qth7a.8</a>'
  apa: Protte, M., Ebers, L., Hammer, M., Höpker, J. P., Albert, M., Quiring, V.,
    Meier, C., Förstner, J., Silberhorn, C., &#38; Bartley, T. (2020). Towards Semiconductor-Superconductor-Crystal
    Hybrid Integration for Quantum Photonics. <i>OSA Quantum 2.0 Conference</i>, Article
    QTh7A.8. <a href="https://doi.org/10.1364/quantum.2020.qth7a.8">https://doi.org/10.1364/quantum.2020.qth7a.8</a>
  bibtex: '@inproceedings{Protte_Ebers_Hammer_Höpker_Albert_Quiring_Meier_Förstner_Silberhorn_Bartley_2020,
    title={Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum
    Photonics}, DOI={<a href="https://doi.org/10.1364/quantum.2020.qth7a.8">10.1364/quantum.2020.qth7a.8</a>},
    number={QTh7A.8}, booktitle={OSA Quantum 2.0 Conference}, author={Protte, Maximilian
    and Ebers, Lena and Hammer, Manfred and Höpker, Jan Philipp and Albert, Maximilian
    and Quiring, Viktor and Meier, Cedrik and Förstner, Jens and Silberhorn, Christine
    and Bartley, Tim}, year={2020} }'
  chicago: Protte, Maximilian, Lena Ebers, Manfred Hammer, Jan Philipp Höpker, Maximilian
    Albert, Viktor Quiring, Cedrik Meier, Jens Förstner, Christine Silberhorn, and
    Tim Bartley. “Towards Semiconductor-Superconductor-Crystal Hybrid Integration
    for Quantum Photonics.” In <i>OSA Quantum 2.0 Conference</i>, 2020. <a href="https://doi.org/10.1364/quantum.2020.qth7a.8">https://doi.org/10.1364/quantum.2020.qth7a.8</a>.
  ieee: 'M. Protte <i>et al.</i>, “Towards Semiconductor-Superconductor-Crystal Hybrid
    Integration for Quantum Photonics,” 2020, doi: <a href="https://doi.org/10.1364/quantum.2020.qth7a.8">10.1364/quantum.2020.qth7a.8</a>.'
  mla: Protte, Maximilian, et al. “Towards Semiconductor-Superconductor-Crystal Hybrid
    Integration for Quantum Photonics.” <i>OSA Quantum 2.0 Conference</i>, QTh7A.8,
    2020, doi:<a href="https://doi.org/10.1364/quantum.2020.qth7a.8">10.1364/quantum.2020.qth7a.8</a>.
  short: 'M. Protte, L. Ebers, M. Hammer, J.P. Höpker, M. Albert, V. Quiring, C. Meier,
    J. Förstner, C. Silberhorn, T. Bartley, in: OSA Quantum 2.0 Conference, 2020.'
date_created: 2021-04-22T15:56:45Z
date_updated: 2022-10-25T07:41:15Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '15'
doi: 10.1364/quantum.2020.qth7a.8
file:
- access_level: closed
  content_type: application/pdf
  creator: fossie
  date_created: 2021-04-22T15:58:52Z
  date_updated: 2021-04-22T15:58:52Z
  file_id: '21720'
  file_name: Quantum2.0-Towards SSC hybrid integration for quantum photonics[4936].pdf
  file_size: 1704199
  relation: main_file
  success: 1
file_date_updated: 2021-04-22T15:58:52Z
has_accepted_license: '1'
keyword:
- tet_topic_waveguide
language:
- iso: eng
publication: OSA Quantum 2.0 Conference
publication_identifier:
  isbn:
  - '9781943580811'
publication_status: published
status: public
title: Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum
  Photonics
type: conference
user_id: '49683'
year: '2020'
...