Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

NONLINEAR OPTICS

Ferroelectric nanosheets boost nonlinearity

Nature Photonics volume 16, pages 611–612 (2022)Cite this article

Subjects

Multilayered ferroelectric NbOI2 crystals with sub-100-nm thickness exhibit efficient second harmonic generation, paving the way for on-chip nonlinear optical components.

Now reporting in Nature Photonics, Abdelwahab and co-workers from Singapore, Germany, Brazil, Australia and the UK demonstrate1 second harmonic generation (SHG) in the 2D ferroelectric material NbOI2 with a conversion efficiency >0.2% and an interaction length of just over 20 nm. In doing so, they make progress towards efficient phase-matching-free thin-film nonlinear optics.

This is a preview of subscription content, access via your institution

Access options

Buy article

Get time limited or full article access on ReadCube.

$32.00

Buy

All prices are NET prices.

Fig. 1: Principles of thin-film nonlinear optics for the case of SHG.

References

  1. Abdelwahab, I. et al. Nat. Photon. https://doi.org/10.1038/s41566-022-01021-y (2022).

    Article  Google Scholar 

  2. Nielsen, M. P., Shi, X., Dichtl, P., Maier, S. A. & Oulton, R. F. Science 358, 1179–1181 (2017).

    Article  ADS  MathSciNet  Google Scholar 

  3. Lee, J. et al. Nature 511, 65–69 (2014).

    Article  ADS  Google Scholar 

  4. Autere, A. et al. Adv. Mater. 30, e1705963 (2018).

    Article  Google Scholar 

  5. Boyd, R.W. Nonlinear Optics (Academic Press, 2008).

  6. Lee, J. et al. Adv. Opt. Mater. 4, 664–670 (2016).

    Article  Google Scholar 

  7. Gennaro, S. D., Li, Y., Maier, S. A. & Oulton, R. F. ACS Photonics 5, 3166–3171 (2018).

    Article  Google Scholar 

  8. Rakher, M. T., Ma, L., Slattery, O., Tang, X. & Srinivasan, K. Nat. Photon. 4, 786–791 (2010).

    Article  ADS  Google Scholar 

  9. Zaske, S. et al. Phys. Rev. Lett. 109, 147404 (2012).

    Article  ADS  Google Scholar 

  10. Morrison, C. L. et al. Appl. Phys. Lett. 118, 174003 (2021).

    Article  ADS  Google Scholar 

  11. Santiago-Cruz, T., Sultanov, V., Zhang, H., Krivitsky, L. A. & Chekhova, M. V. Opt. Lett. 46, 653–656 (2021).

    Article  ADS  Google Scholar 

  12. Lemos, G. B. et al. Nature 512, 409–412 (2014).

    Article  ADS  Google Scholar 

  13. Brida, G., Genovese, M. & Berchera, I. R. Nat. Photon. 4, 227–230 (2010).

    Article  ADS  Google Scholar 

  14. Triginer Garces, G. et al. Appl. Phys. Lett. 117, 024002 (2020).

    Article  ADS  Google Scholar 

  15. Casacio, C. A. et al. Nature 594, 201–206 (2021).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Blackett Laboratory, Imperial College London, London, UK

    Rupert F. Oulton, Jefferson Flórez & Alex S. Clark

  2. Quantum Engineering Technology Labs, University of Bristol, Bristol, UK

    Alex S. Clark

Authors
  1. Rupert F. Oulton
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jefferson Flórez
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Alex S. Clark
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Rupert F. Oulton.

Ethics declarations

Competing interests

The authors declare no competing interests.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Oulton, R.F., Flórez, J. & Clark, A.S. Ferroelectric nanosheets boost nonlinearity. Nat. Photon. 16, 611–612 (2022). https://doi.org/10.1038/s41566-022-01065-0

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/s41566-022-01065-0

Search

Advanced search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing