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Ultraviolet astronomical spectrograph calibration with laser frequency combs from nanophotonic lithium niobate waveguides

Author

Listed:
  • Markus Ludwig

    (Deutsches Elektronen-Synchrotron DESY)

  • Furkan Ayhan

    (École Polytechnique Fédérale de Lausanne (EPFL))

  • Tobias M. Schmidt

    (Université de Genève)

  • Thibault Wildi

    (Deutsches Elektronen-Synchrotron DESY)

  • Thibault Voumard

    (Deutsches Elektronen-Synchrotron DESY)

  • Roman Blum

    (Swiss Center for Electronics and Microtechnology (CSEM))

  • Zhichao Ye

    (Chalmers University of Technology)

  • Fuchuan Lei

    (Chalmers University of Technology)

  • François Wildi

    (Université de Genève)

  • Francesco Pepe

    (Université de Genève)

  • Mahmoud A. Gaafar

    (Deutsches Elektronen-Synchrotron DESY)

  • Ewelina Obrzud

    (Swiss Center for Electronics and Microtechnology (CSEM))

  • Davide Grassani

    (Swiss Center for Electronics and Microtechnology (CSEM))

  • Olivia Hefti

    (Swiss Center for Electronics and Microtechnology (CSEM))

  • Sylvain Karlen

    (Swiss Center for Electronics and Microtechnology (CSEM))

  • Steve Lecomte

    (Swiss Center for Electronics and Microtechnology (CSEM))

  • François Moreau

    (Université d’Aix-Marseille)

  • Bruno Chazelas

    (Université de Genève)

  • Rico Sottile

    (Université d’Aix-Marseille)

  • Victor Torres-Company

    (Chalmers University of Technology)

  • Victor Brasch

    (Q.ANT GmbH)

  • Luis G. Villanueva

    (École Polytechnique Fédérale de Lausanne (EPFL))

  • François Bouchy

    (Université de Genève)

  • Tobias Herr

    (Deutsches Elektronen-Synchrotron DESY
    Universität Hamburg UHH)

Abstract

Astronomical precision spectroscopy underpins searches for life beyond Earth, direct observation of the expanding Universe and constraining the potential variability of physical constants on cosmological scales. Laser frequency combs can provide the required accurate and precise calibration to the astronomical spectrographs. For cosmological studies, extending the calibration with such astrocombs to the ultraviolet spectral range is desirable, however, strong material dispersion and large spectral separation from the established infrared laser oscillators have made this challenging. Here, we demonstrate astronomical spectrograph calibration with an astrocomb in the ultraviolet spectral range below 400 nm. This is accomplished via chip-integrated highly nonlinear photonics in periodically-poled, nano-fabricated lithium niobate waveguides in conjunction with a robust infrared electro-optic comb generator, as well as a chip-integrated microresonator comb. These results demonstrate a viable route towards astronomical precision spectroscopy in the ultraviolet and could contribute to unlock the full potential of next-generation ground-based and future space-based instruments.

Suggested Citation

  • Markus Ludwig & Furkan Ayhan & Tobias M. Schmidt & Thibault Wildi & Thibault Voumard & Roman Blum & Zhichao Ye & Fuchuan Lei & François Wildi & Francesco Pepe & Mahmoud A. Gaafar & Ewelina Obrzud & Da, 2024. "Ultraviolet astronomical spectrograph calibration with laser frequency combs from nanophotonic lithium niobate waveguides," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-51560-x
    DOI: 10.1038/s41467-024-51560-x
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    References listed on IDEAS

    as
    1. Arkadev Roy & Luis Ledezma & Luis Costa & Robert Gray & Ryoto Sekine & Qiushi Guo & Mingchen Liu & Ryan M. Briggs & Alireza Marandi, 2023. "Visible-to-mid-IR tunable frequency comb in nanophotonics," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    2. Yuk Shan Cheng & Kamalesh Dadi & Toby Mitchell & Samantha Thompson & Nikolai Piskunov & Lewis D. Wright & Corin B. E. Gawith & Richard A. McCracken & Derryck T. Reid, 2024. "Continuous ultraviolet to blue-green astrocomb," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    3. Xianwen Liu & Alexander W. Bruch & Juanjuan Lu & Zheng Gong & Joshua B. Surya & Liang Zhang & Junxi Wang & Jianchang Yan & Hong X. Tang, 2019. "Beyond 100 THz-spanning ultraviolet frequency combs in a non-centrosymmetric crystalline waveguide," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    4. X. Yi & K. Vahala & J. Li & S. Diddams & G. Ycas & P. Plavchan & S. Leifer & J. Sandhu & G. Vasisht & P. Chen & P. Gao & J. Gagne & E. Furlan & M. Bottom & E. C. Martin & M. P. Fitzgerald & G. Doppman, 2016. "Demonstration of a near-IR line-referenced electro-optical laser frequency comb for precision radial velocity measurements in astronomy," Nature Communications, Nature, vol. 7(1), pages 1-9, April.
    5. Tobias Wilken & Gaspare Lo Curto & Rafael A. Probst & Tilo Steinmetz & Antonio Manescau & Luca Pasquini & Jonay I. González Hernández & Rafael Rebolo & Theodor W. Hänsch & Thomas Udem & Ronald Holzwar, 2012. "A spectrograph for exoplanet observations calibrated at the centimetre-per-second level," Nature, Nature, vol. 485(7400), pages 611-614, May.
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