The presence of topologically protected edge states is usually determined by angular-resolved photoelectron spectroscopy, requiring clean surfaces and ultrahigh vacuum. Now, an all-optical technique, based on high-harmonic radiation, has been shown to detect topological phase transitions under ambient conditions.
This is a preview of subscription content, access via your institution
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 / 30 days
cancel any time
Subscribe to this journal
Receive 12 print issues and online access
$209.00 per year
only $17.42 per issue
Rent or buy this article
Prices vary by article type
Prices may be subject to local taxes which are calculated during checkout
Goulielmakis, E. & Brabec, T. Nat. Photon. 16, 411–421 (2022).
Liu, H., Li, Y. & You, Y. et al. Nat. Phys 13, 262–265 (2017).
Schmid, C. P. et al. Nature 593, 385–390 (2021).
Jürß, C. & Bauer, D. Preprint at https://arxiv.org/abs/2205.12810 (2022).
Brahlek, M. et al. Phys. Rev. Lett. 109, 186403 (2012).
Heide, C. et al. Nat. Photon. https://doi.org/10.1038/s41566-022-01050-7 (2022).
Fu, L. Phys. Rev. Lett. 103, 266801 (2009).
Mao, S., Yamakage, A. & Kuramoto, Y. Phys. Rev. B 84, 115413 (2011).
Reimann, J. et al. Nature 562, 396–400 (2018).
Hübener, H. et al. Nat. Commun. 8, 13940 (2017).
The author declares no competing interests.
About this article
Cite this article
Bauer, D. Optically sensing topological phase transitions. Nat. Photon. 16, 614–615 (2022). https://doi.org/10.1038/s41566-022-01063-2