Self-evolving photonic crystals for ultrafast photonics

Takuya Inoue (), Ryohei Morita, Kazuki Nigo, Masahiro Yoshida, Menaka Zoysa, Kenji Ishizaki and Susumu Noda ()
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Takuya Inoue: Kyoto University
Ryohei Morita: Kyoto University
Kazuki Nigo: Kyoto University
Masahiro Yoshida: Kyoto University
Menaka Zoysa: Kyoto University
Kenji Ishizaki: Kyoto University
Susumu Noda: Kyoto University

Nature Communications, 2023, vol. 14, issue 1, 1-7

Abstract: Abstract Ultrafast dynamics in nanophotonic materials is attracting increasing attention from the perspective of exploring new physics in fundamental science and expanding functionalities in various photonic devices. In general, such dynamics is induced by external stimuli such as optical pumping or voltage application, which becomes more difficult as the optical power to be controlled becomes larger owing to the increase in the energy required for the external control. Here, we demonstrate a concept of the self-evolving photonic crystal, where the spatial profile of the photonic band is dynamically changed through carrier-photon interactions only by injecting continuous uniform current. Based on this concept, we experimentally demonstrate short-pulse generation with a high peak power of 80 W and a pulse width of

Date: 2023
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DOI: 10.1038/s41467-022-35599-2

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