---
_id: '57028'
abstract:
- lang: eng
  text: <jats:p>Lithium niobate and lithium tantalate are among the most widespread
    materials for nonlinear, integrated photonics. Mixed crystals with arbitrary Nb–Ta
    ratios provide an additional degree of freedom to not only tune materials properties,
    such as the birefringence but also leverage the advantages of the singular compounds,
    for example, by combining the thermal stability of lithium tantalate with the
    larger nonlinear or piezoelectric constants of lithium niobate. Periodic poling
    allows to achieve phase-matching independent of waveguide geometry and is, therefore,
    one of the commonly used methods in integrated nonlinear optics. For mixed crystals,
    periodic poling has been challenging so far due to the lack of homogeneous, mono-domain
    crystals, which severely inhibit domain growth and nucleation. In this work, we
    investigate surface-near (&amp;lt;1μm depth) domain inversion on x-cut lithium
    niobate tantalate mixed crystals via electric field poling and lithographically
    structured electrodes. We find that naturally occurring head-to-head or tail-to-tail
    domain walls in the as-grown crystal inhibit domain inversion at a larger scale.
    However, periodic poling is possible if the gap size between the poling electrodes
    is of the same order of magnitude or smaller than the average size of naturally
    occurring domains. This work provides the basis for the nonlinear optical application
    of lithium niobate tantalate mixed crystals.</jats:p>
author:
- first_name: Laura
  full_name: Bollmers, Laura
  id: '61375'
  last_name: Bollmers
- first_name: Tobias
  full_name: Babai-Hemati, Tobias
  last_name: Babai-Hemati
- first_name: Boris
  full_name: Koppitz, Boris
  last_name: Koppitz
- first_name: Christof
  full_name: Eigner, Christof
  id: '13244'
  last_name: Eigner
  orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Laura
  full_name: Padberg, Laura
  id: '40300'
  last_name: Padberg
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Lukas M.
  full_name: Eng, Lukas M.
  last_name: Eng
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
citation:
  ama: Bollmers L, Babai-Hemati T, Koppitz B, et al. Surface-near domain engineering
    in multi-domain x-cut lithium niobate tantalate mixed crystals. <i>Applied Physics
    Letters</i>. 2024;125(15). doi:<a href="https://doi.org/10.1063/5.0210972">10.1063/5.0210972</a>
  apa: Bollmers, L., Babai-Hemati, T., Koppitz, B., Eigner, C., Padberg, L., Rüsing,
    M., Eng, L. M., &#38; Silberhorn, C. (2024). Surface-near domain engineering in
    multi-domain x-cut lithium niobate tantalate mixed crystals. <i>Applied Physics
    Letters</i>, <i>125</i>(15). <a href="https://doi.org/10.1063/5.0210972">https://doi.org/10.1063/5.0210972</a>
  bibtex: '@article{Bollmers_Babai-Hemati_Koppitz_Eigner_Padberg_Rüsing_Eng_Silberhorn_2024,
    title={Surface-near domain engineering in multi-domain x-cut lithium niobate tantalate
    mixed crystals}, volume={125}, DOI={<a href="https://doi.org/10.1063/5.0210972">10.1063/5.0210972</a>},
    number={15}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Bollmers,
    Laura and Babai-Hemati, Tobias and Koppitz, Boris and Eigner, Christof and Padberg,
    Laura and Rüsing, Michael and Eng, Lukas M. and Silberhorn, Christine}, year={2024}
    }'
  chicago: Bollmers, Laura, Tobias Babai-Hemati, Boris Koppitz, Christof Eigner, Laura
    Padberg, Michael Rüsing, Lukas M. Eng, and Christine Silberhorn. “Surface-near
    Domain Engineering in Multi-Domain x-Cut Lithium Niobate Tantalate Mixed Crystals.”
    <i>Applied Physics Letters</i> 125, no. 15 (2024). <a href="https://doi.org/10.1063/5.0210972">https://doi.org/10.1063/5.0210972</a>.
  ieee: 'L. Bollmers <i>et al.</i>, “Surface-near domain engineering in multi-domain
    x-cut lithium niobate tantalate mixed crystals,” <i>Applied Physics Letters</i>,
    vol. 125, no. 15, 2024, doi: <a href="https://doi.org/10.1063/5.0210972">10.1063/5.0210972</a>.'
  mla: Bollmers, Laura, et al. “Surface-near Domain Engineering in Multi-Domain x-Cut
    Lithium Niobate Tantalate Mixed Crystals.” <i>Applied Physics Letters</i>, vol.
    125, no. 15, AIP Publishing, 2024, doi:<a href="https://doi.org/10.1063/5.0210972">10.1063/5.0210972</a>.
  short: L. Bollmers, T. Babai-Hemati, B. Koppitz, C. Eigner, L. Padberg, M. Rüsing,
    L.M. Eng, C. Silberhorn, Applied Physics Letters 125 (2024).
date_created: 2024-11-13T08:06:59Z
date_updated: 2024-11-15T09:15:08Z
department:
- _id: '15'
- _id: '623'
- _id: '230'
- _id: '288'
doi: 10.1063/5.0210972
intvolume: '       125'
issue: '15'
language:
- iso: eng
project:
- _id: '168'
  grant_number: '231447078'
  name: 'TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften
    von Lithiumniobat (B07*)'
publication: Applied Physics Letters
publication_identifier:
  issn:
  - 0003-6951
  - 1077-3118
publication_status: published
publisher: AIP Publishing
status: public
title: Surface-near domain engineering in multi-domain x-cut lithium niobate tantalate
  mixed crystals
type: journal_article
user_id: '61375'
volume: 125
year: '2024'
...